./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/queue_ok_longest.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/queue_ok_longest.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 20:43:57,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 20:43:57,610 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf [2023-12-02 20:43:57,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 20:43:57,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 20:43:57,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 20:43:57,639 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 20:43:57,640 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 20:43:57,641 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 20:43:57,641 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 20:43:57,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 20:43:57,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 20:43:57,643 INFO L153 SettingsManager]: * Use SBE=true [2023-12-02 20:43:57,644 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 20:43:57,644 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 20:43:57,645 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 20:43:57,645 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 20:43:57,646 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 20:43:57,646 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 20:43:57,647 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 20:43:57,647 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-12-02 20:43:57,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 20:43:57,648 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 20:43:57,649 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 20:43:57,649 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 20:43:57,650 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 20:43:57,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 20:43:57,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 20:43:57,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 20:43:57,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 20:43:57,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:43:57,652 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 20:43:57,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 20:43:57,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-02 20:43:57,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 20:43:57,654 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 20:43:57,654 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-12-02 20:43:57,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-12-02 20:43:57,654 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-12-02 20:43:57,654 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-12-02 20:43:57,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e9bc4a9a6dcd238ac18925269a0bd7c8c54c2dafb57744151e37b58cf6eab8d [2023-12-02 20:43:57,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 20:43:57,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 20:43:57,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 20:43:57,902 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 20:43:57,902 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 20:43:57,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/../../sv-benchmarks/c/pthread/queue_ok_longest.i [2023-12-02 20:44:00,709 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 20:44:00,968 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 20:44:00,969 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/sv-benchmarks/c/pthread/queue_ok_longest.i [2023-12-02 20:44:00,989 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/data/bd5d9cea5/d92cbe10f11d4e7b995da1ad48c95008/FLAG48a2ca70f [2023-12-02 20:44:01,005 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/data/bd5d9cea5/d92cbe10f11d4e7b995da1ad48c95008 [2023-12-02 20:44:01,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 20:44:01,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 20:44:01,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 20:44:01,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 20:44:01,017 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 20:44:01,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d23d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01, skipping insertion in model container [2023-12-02 20:44:01,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,080 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 20:44:01,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:44:01,538 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 20:44:01,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 20:44:01,662 INFO L206 MainTranslator]: Completed translation [2023-12-02 20:44:01,662 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01 WrapperNode [2023-12-02 20:44:01,662 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 20:44:01,663 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 20:44:01,664 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 20:44:01,664 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 20:44:01,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,696 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,744 INFO L138 Inliner]: procedures = 275, calls = 61, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 214 [2023-12-02 20:44:01,744 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 20:44:01,745 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 20:44:01,745 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 20:44:01,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 20:44:01,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,762 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,783 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,791 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 20:44:01,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 20:44:01,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 20:44:01,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 20:44:01,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (1/1) ... [2023-12-02 20:44:01,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 20:44:01,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:44:01,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 20:44:01,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 20:44:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-12-02 20:44:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-12-02 20:44:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-12-02 20:44:01,886 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-12-02 20:44:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 20:44:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 20:44:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 20:44:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 20:44:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 20:44:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 20:44:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 20:44:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 20:44:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 20:44:01,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 20:44:01,889 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 20:44:02,056 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 20:44:02,059 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 20:44:02,531 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 20:44:02,694 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 20:44:02,694 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 20:44:02,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:44:02 BoogieIcfgContainer [2023-12-02 20:44:02,695 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 20:44:02,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 20:44:02,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 20:44:02,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 20:44:02,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:44:01" (1/3) ... [2023-12-02 20:44:02,701 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8926ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:44:02, skipping insertion in model container [2023-12-02 20:44:02,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:44:01" (2/3) ... [2023-12-02 20:44:02,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8926ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:44:02, skipping insertion in model container [2023-12-02 20:44:02,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:44:02" (3/3) ... [2023-12-02 20:44:02,703 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok_longest.i [2023-12-02 20:44:02,721 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 20:44:02,721 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2023-12-02 20:44:02,721 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 20:44:02,814 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-12-02 20:44:02,858 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:44:02,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-12-02 20:44:02,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:44:02,860 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-12-02 20:44:02,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-12-02 20:44:02,921 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-12-02 20:44:02,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Thread1of1ForFork0 ======== [2023-12-02 20:44:02,937 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7e4b645f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 20:44:02,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-12-02 20:44:03,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:03,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:03,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1823131261, now seen corresponding path program 1 times [2023-12-02 20:44:03,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:03,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504757089] [2023-12-02 20:44:03,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:03,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:03,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:03,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:03,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504757089] [2023-12-02 20:44:03,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504757089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:44:03,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:44:03,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:44:03,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523501412] [2023-12-02 20:44:03,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:44:03,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 20:44:03,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:44:03,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 20:44:03,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 20:44:03,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:03,627 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:44:03,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:44:03,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:03,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:03,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 20:44:03,792 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:03,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:03,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1823131262, now seen corresponding path program 1 times [2023-12-02 20:44:03,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:03,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624592395] [2023-12-02 20:44:03,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:03,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:06,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:06,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:06,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624592395] [2023-12-02 20:44:06,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624592395] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:44:06,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:44:06,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 20:44:06,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507740188] [2023-12-02 20:44:06,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:44:06,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 20:44:06,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:44:06,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 20:44:06,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-12-02 20:44:06,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:06,302 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:44:06,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:44:06,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:06,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:08,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:08,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:08,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 20:44:08,179 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:08,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:08,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1790474273, now seen corresponding path program 1 times [2023-12-02 20:44:08,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:08,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87696218] [2023-12-02 20:44:08,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:08,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:08,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:08,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:08,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87696218] [2023-12-02 20:44:08,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87696218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:44:08,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:44:08,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-02 20:44:08,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610437198] [2023-12-02 20:44:08,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:44:08,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 20:44:08,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:44:08,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 20:44:08,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-02 20:44:08,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:08,813 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:44:08,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:44:08,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:08,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:08,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:09,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:09,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 20:44:09,171 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:09,171 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:09,171 INFO L85 PathProgramCache]: Analyzing trace with hash -328796434, now seen corresponding path program 1 times [2023-12-02 20:44:09,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:09,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142873989] [2023-12-02 20:44:09,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:09,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:09,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:09,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:09,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:09,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142873989] [2023-12-02 20:44:09,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142873989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:44:09,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:44:09,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:44:09,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278876868] [2023-12-02 20:44:09,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:44:09,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:44:09,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:44:09,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:44:09,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:44:09,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:09,340 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:44:09,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:44:09,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:09,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:09,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:09,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:09,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:09,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 20:44:09,543 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:09,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:09,543 INFO L85 PathProgramCache]: Analyzing trace with hash -328796433, now seen corresponding path program 1 times [2023-12-02 20:44:09,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:09,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210225570] [2023-12-02 20:44:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:09,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:09,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:09,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210225570] [2023-12-02 20:44:09,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210225570] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:44:09,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 20:44:09,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 20:44:09,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303855171] [2023-12-02 20:44:09,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:44:09,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 20:44:09,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:44:09,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 20:44:09,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-02 20:44:09,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:09,874 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:44:09,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:44:09,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:09,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:09,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:09,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:09,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:10,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:10,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:10,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:10,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:10,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:10,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 20:44:10,061 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:10,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:10,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1646577762, now seen corresponding path program 1 times [2023-12-02 20:44:10,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:10,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978636515] [2023-12-02 20:44:10,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:10,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:12,556 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:12,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:12,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978636515] [2023-12-02 20:44:12,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978636515] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:44:12,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816285658] [2023-12-02 20:44:12,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:12,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:12,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:44:12,597 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:44:12,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 20:44:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:12,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 67 conjunts are in the unsatisfiable core [2023-12-02 20:44:12,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:44:12,807 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 20:44:12,808 INFO L378 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 [2023-12-02 20:44:12,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 20:44:12,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 20:44:13,088 INFO L378 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 16 [2023-12-02 20:44:13,353 INFO L378 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 30 treesize of output 21 [2023-12-02 20:44:13,391 INFO L378 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 30 treesize of output 14 [2023-12-02 20:44:13,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-02 20:44:13,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:13,624 INFO L378 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 11 [2023-12-02 20:44:13,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:13,758 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:44:13,885 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_169 (Array Int Int))) (<= (+ |c_~#queue~0.offset| (* (select (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_169) |c_~#queue~0.base|) .cse0) 4) 4) (select |c_#length| |c_~#queue~0.base|))) (forall ((v_ArrVal_169 (Array Int Int))) (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_169) |c_~#queue~0.base|) .cse0) 4)))))) is different from false [2023-12-02 20:44:14,036 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store .cse2 .cse3 (+ (select .cse2 .cse3) 1))))) (.cse1 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_169 (Array Int Int))) (<= 0 (+ (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_169) |c_~#queue~0.base|) .cse1) 4) |c_~#queue~0.offset|))) (forall ((v_ArrVal_169 (Array Int Int))) (<= (+ (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_169) |c_~#queue~0.base|) .cse1) 4) |c_~#queue~0.offset| 4) (select |c_#length| |c_~#queue~0.base|))))) is different from false [2023-12-02 20:44:15,310 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:44:15,311 INFO L378 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 260 treesize of output 264 [2023-12-02 20:44:15,647 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:44:15,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 139 treesize of output 99 [2023-12-02 20:44:15,664 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:44:15,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 143 [2023-12-02 20:44:15,679 INFO L378 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 73 treesize of output 65 [2023-12-02 20:44:15,692 INFO L378 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 104 treesize of output 96 [2023-12-02 20:44:15,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-02 20:44:15,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:44:15,759 INFO L378 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 92 treesize of output 94 [2023-12-02 20:44:16,128 INFO L349 Elim1Store]: treesize reduction 20, result has 4.8 percent of original size [2023-12-02 20:44:16,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 138 treesize of output 1 [2023-12-02 20:44:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:16,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [816285658] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:44:16,219 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:44:16,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 37 [2023-12-02 20:44:16,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682723104] [2023-12-02 20:44:16,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:44:16,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-12-02 20:44:16,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:44:16,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-12-02 20:44:16,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1151, Unknown=25, NotChecked=142, Total=1482 [2023-12-02 20:44:16,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:16,226 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:44:16,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:44:16,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:16,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:16,226 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:16,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:16,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:16,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:20,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:20,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:20,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:20,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:20,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:20,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:44:20,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-02 20:44:20,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:20,414 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:20,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:20,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1648931394, now seen corresponding path program 1 times [2023-12-02 20:44:20,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:20,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635459067] [2023-12-02 20:44:20,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:20,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:20,706 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:20,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:20,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635459067] [2023-12-02 20:44:20,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635459067] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:44:20,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284494973] [2023-12-02 20:44:20,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:20,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:20,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:44:20,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:44:20,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 20:44:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:20,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 20:44:20,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:44:20,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:20,893 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-12-02 20:44:20,893 INFO L378 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 16 treesize of output 18 [2023-12-02 20:44:20,898 INFO L378 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 19 treesize of output 9 [2023-12-02 20:44:20,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:20,908 INFO L378 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 14 treesize of output 9 [2023-12-02 20:44:21,179 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:21,179 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:44:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:21,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284494973] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:44:21,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:44:21,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 10 [2023-12-02 20:44:21,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718658339] [2023-12-02 20:44:21,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:44:21,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 20:44:21,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:44:21,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 20:44:21,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-02 20:44:21,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:21,385 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:44:21,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 11 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:44:21,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:21,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:21,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:21,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:21,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:21,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:44:21,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:21,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:21,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:21,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:44:21,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:44:21,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 20:44:21,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:21,903 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:21,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:21,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1078479275, now seen corresponding path program 2 times [2023-12-02 20:44:21,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:21,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77412160] [2023-12-02 20:44:21,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:21,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:23,625 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 40 proven. 42 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 20:44:23,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:23,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77412160] [2023-12-02 20:44:23,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77412160] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:44:23,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078089203] [2023-12-02 20:44:23,626 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 20:44:23,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:23,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:44:23,627 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:44:23,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 20:44:23,840 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 20:44:23,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:44:23,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 20:44:23,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:44:23,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:23,875 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-12-02 20:44:23,875 INFO L378 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 16 treesize of output 18 [2023-12-02 20:44:23,879 INFO L378 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 19 treesize of output 9 [2023-12-02 20:44:23,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:23,886 INFO L378 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 14 treesize of output 9 [2023-12-02 20:44:24,381 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 20:44:24,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 20:44:24,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078089203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:44:24,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 20:44:24,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 21 [2023-12-02 20:44:24,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67371865] [2023-12-02 20:44:24,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:44:24,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-02 20:44:24,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:44:24,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-02 20:44:24,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2023-12-02 20:44:24,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:24,385 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:44:24,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:44:24,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:24,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:24,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:24,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:24,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:24,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:44:24,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:44:24,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:44:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:44:24,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:44:24,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 20:44:25,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:25,123 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:25,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:25,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1313729447, now seen corresponding path program 1 times [2023-12-02 20:44:25,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:25,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067546317] [2023-12-02 20:44:25,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:25,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 89 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 20:44:27,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:27,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067546317] [2023-12-02 20:44:27,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067546317] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:44:27,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995195508] [2023-12-02 20:44:27,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:27,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:27,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:44:27,006 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:44:27,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 20:44:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:27,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 593 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 20:44:27,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:44:27,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 20:44:27,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:27,465 INFO L378 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 11 [2023-12-02 20:44:27,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:27,530 INFO L378 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 27 treesize of output 11 [2023-12-02 20:44:27,543 INFO L378 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 11 [2023-12-02 20:44:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 73 proven. 21 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-02 20:44:27,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:44:27,766 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:44:27,767 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 43 [2023-12-02 20:44:27,774 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:44:27,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 80 [2023-12-02 20:44:27,781 INFO L378 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 61 treesize of output 53 [2023-12-02 20:44:27,793 INFO L378 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 8 treesize of output 4 [2023-12-02 20:44:27,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:44:27,835 INFO L378 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 48 treesize of output 44 [2023-12-02 20:44:27,952 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 73 proven. 21 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-02 20:44:27,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995195508] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:44:27,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:44:27,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 9] total 26 [2023-12-02 20:44:27,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758043457] [2023-12-02 20:44:27,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:44:27,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-12-02 20:44:27,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:44:27,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-12-02 20:44:27,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=576, Unknown=4, NotChecked=0, Total=702 [2023-12-02 20:44:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:27,956 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:44:27,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.518518518518518) internal successors, (149), 26 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:44:27,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:27,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:27,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:27,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:27,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:27,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-12-02 20:44:27,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:44:27,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:44:27,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:29,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:44:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:44:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:44:29,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:44:29,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 20:44:29,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:29,712 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:29,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:29,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1255269354, now seen corresponding path program 1 times [2023-12-02 20:44:29,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:29,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517707008] [2023-12-02 20:44:29,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:29,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:30,033 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 20:44:30,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:30,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517707008] [2023-12-02 20:44:30,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517707008] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:44:30,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644253615] [2023-12-02 20:44:30,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:30,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:30,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:44:30,035 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:44:30,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 20:44:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:30,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 20:44:30,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:44:30,375 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 20:44:30,375 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:44:30,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:44:30,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2023-12-02 20:44:30,674 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 20:44:30,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644253615] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:44:30,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:44:30,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 12 [2023-12-02 20:44:30,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372206518] [2023-12-02 20:44:30,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:44:30,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 20:44:30,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:44:30,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 20:44:30,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-12-02 20:44:30,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:30,678 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:44:30,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:44:30,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:30,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:30,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:30,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:30,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:30,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:44:30,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:44:30,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:44:30,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:44:30,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:31,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:31,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:31,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:44:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:44:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:44:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:44:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:44:31,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 20:44:31,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:31,237 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:31,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:31,237 INFO L85 PathProgramCache]: Analyzing trace with hash -467519074, now seen corresponding path program 1 times [2023-12-02 20:44:31,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:31,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118868200] [2023-12-02 20:44:31,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:31,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:31,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:32,015 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 25 proven. 12 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 20:44:32,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:32,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118868200] [2023-12-02 20:44:32,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118868200] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:44:32,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815942426] [2023-12-02 20:44:32,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:32,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:32,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:44:32,017 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:44:32,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-02 20:44:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:32,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 58 conjunts are in the unsatisfiable core [2023-12-02 20:44:32,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:44:32,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 20:44:32,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:32,464 INFO L378 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 11 [2023-12-02 20:44:32,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:32,586 INFO L378 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 27 treesize of output 11 [2023-12-02 20:44:32,613 INFO L378 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 11 [2023-12-02 20:44:32,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-02 20:44:32,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:32,715 INFO L378 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 11 [2023-12-02 20:44:32,794 INFO L378 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 11 [2023-12-02 20:44:32,806 INFO L378 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 11 [2023-12-02 20:44:32,829 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 45 proven. 23 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:44:32,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:44:32,969 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_669 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (not (= (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_669) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|)) .cse1)) 800))) is different from false [2023-12-02 20:44:32,980 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_669 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (not (= (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|))) |c_~#stored_elements~0.base| v_ArrVal_669) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|)) .cse1)) 800))) is different from false [2023-12-02 20:44:33,056 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_669 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (not (= 800 (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store (store .cse2 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_669) |c_~#queue~0.base|))) (store .cse0 (+ |c_~#queue~0.offset| (* (select .cse0 .cse1) 4)) |t1Thread1of1ForFork0_enqueue_~x#1|)) .cse1))))) is different from false [2023-12-02 20:44:33,072 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_669 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_42| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (not (= 800 (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ (* |c_t1Thread1of1ForFork0_enqueue_#t~mem36#1| 4) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store (store .cse2 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_669) |c_~#queue~0.base|))) (store .cse0 (+ (* 4 (select .cse0 .cse1)) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_42|)) .cse1))))) is different from false [2023-12-02 20:44:33,091 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_66| Int)) (let ((.cse1 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|)) (.cse0 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|))) (or (< (select .cse0 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_66|) (forall ((v_ArrVal_669 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_42| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (not (= 800 (let ((.cse3 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse2 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse4 (store .cse0 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_66|) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse4 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse1 (+ 1 (select .cse4 .cse1))))) |c_~#stored_elements~0.base| v_ArrVal_669) |c_~#queue~0.base|))) (store .cse2 (+ (* (select .cse2 .cse3) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_42|)) .cse3)))))))) is different from false [2023-12-02 20:44:33,187 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_669 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_66| Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_42| Int) (v_ArrVal_665 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (let ((.cse0 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_665) |c_~#queue~0.base|)) (.cse1 (+ |c_~#queue~0.offset| 3204))) (or (< (select .cse0 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_66|) (not (= (select (let ((.cse2 (select (store (store |c_#memory_int| |c_~#queue~0.base| (let ((.cse3 (store .cse0 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_66|) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse3 (+ 3208 |c_~#queue~0.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse1 (+ (select .cse3 .cse1) 1)))) |c_~#stored_elements~0.base| v_ArrVal_669) |c_~#queue~0.base|))) (store .cse2 (+ |c_~#queue~0.offset| (* 4 (select .cse2 .cse1))) |v_t1Thread1of1ForFork0_enqueue_~x#1_42|)) .cse1) 800))))) is different from false [2023-12-02 20:44:33,209 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:44:33,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 202 treesize of output 142 [2023-12-02 20:44:33,221 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:44:33,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 199 treesize of output 197 [2023-12-02 20:44:33,229 INFO L378 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 99 treesize of output 87 [2023-12-02 20:44:33,238 INFO L378 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 13 treesize of output 9 [2023-12-02 20:44:33,261 INFO L378 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 8 treesize of output 4 [2023-12-02 20:44:33,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:44:33,277 INFO L378 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 96 treesize of output 84 [2023-12-02 20:44:33,410 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 30 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 19 not checked. [2023-12-02 20:44:33,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815942426] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:44:33,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:44:33,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 16] total 35 [2023-12-02 20:44:33,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096994796] [2023-12-02 20:44:33,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:44:33,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-02 20:44:33,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:44:33,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-02 20:44:33,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=732, Unknown=14, NotChecked=366, Total=1260 [2023-12-02 20:44:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:33,414 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:44:33,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.222222222222222) internal successors, (152), 35 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:44:33,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:33,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:33,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:33,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:33,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:33,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:44:33,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:44:33,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:44:33,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:44:33,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:44:33,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:44:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:44:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:44:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:44:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:44:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:44:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:44:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:44:35,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:44:35,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:44:35,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-02 20:44:35,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-02 20:44:35,503 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:44:35,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:44:35,503 INFO L85 PathProgramCache]: Analyzing trace with hash 358469363, now seen corresponding path program 2 times [2023-12-02 20:44:35,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:44:35,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957778978] [2023-12-02 20:44:35,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:44:35,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:44:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:44:37,207 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 44 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:44:37,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:44:37,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957778978] [2023-12-02 20:44:37,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957778978] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:44:37,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392300605] [2023-12-02 20:44:37,208 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 20:44:37,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:44:37,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:44:37,209 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:44:37,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-02 20:44:37,429 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 20:44:37,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:44:37,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 84 conjunts are in the unsatisfiable core [2023-12-02 20:44:37,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:44:37,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 20:44:37,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:37,828 INFO L378 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 11 [2023-12-02 20:44:37,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:37,929 INFO L378 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 27 treesize of output 11 [2023-12-02 20:44:37,957 INFO L378 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 11 [2023-12-02 20:44:38,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-02 20:44:38,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:38,095 INFO L378 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 11 [2023-12-02 20:44:38,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:38,213 INFO L378 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 27 treesize of output 11 [2023-12-02 20:44:38,243 INFO L378 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 11 [2023-12-02 20:44:38,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-02 20:44:38,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:44:38,394 INFO L378 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 11 [2023-12-02 20:44:38,487 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 44 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 20:44:38,487 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:44:38,585 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_781 (Array Int Int))) (<= 0 (+ |c_~#queue~0.offset| (* 4 (select (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse0))))) (forall ((v_ArrVal_781 (Array Int Int))) (<= (+ |c_~#queue~0.offset| (* 4 (select (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse0)) 4) (select |c_#length| |c_~#queue~0.base|))))) is different from false [2023-12-02 20:44:38,600 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|)))) (.cse1 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_781 (Array Int Int))) (<= (+ (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse1) 4) |c_~#queue~0.offset| 4) (select |c_#length| |c_~#queue~0.base|))) (forall ((v_ArrVal_781 (Array Int Int))) (<= 0 (+ (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse1) 4) |c_~#queue~0.offset|))))) is different from false [2023-12-02 20:44:38,610 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store .cse2 .cse3 (+ (select .cse2 .cse3) 1))))) (.cse1 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_781 (Array Int Int))) (<= 0 (+ (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse1) 4) |c_~#queue~0.offset|))) (forall ((v_ArrVal_781 (Array Int Int))) (<= (+ (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse1) 4) |c_~#queue~0.offset| 4) (select |c_#length| |c_~#queue~0.base|))))) is different from false [2023-12-02 20:44:38,637 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse2 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (let ((.cse1 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|)) (.cse3 (+ (select .cse0 .cse2) 1)) (.cse4 (+ |c_~#queue~0.offset| 3204))) (and (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_781 (Array Int Int))) (<= (+ |c_~#queue~0.offset| 4 (* 4 (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse0 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 .cse3)) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse4))) (select |c_#length| |c_~#queue~0.base|))) (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_781 (Array Int Int))) (<= 0 (+ |c_~#queue~0.offset| (* 4 (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse0 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 .cse3)) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse4)))))))) is different from false [2023-12-02 20:44:38,812 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse2 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (let ((.cse5 (select .cse3 .cse2)) (.cse1 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|)) (.cse4 (+ |c_~#queue~0.offset| 3204))) (and (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (or (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_781 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (<= (+ |c_~#queue~0.offset| (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse0 (store .cse3 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse0 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 (+ (select .cse0 .cse2) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse4) 4) 4) (select |c_#length| |c_~#queue~0.base|))) (< .cse5 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|))) (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (or (< .cse5 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_781 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse6 (store .cse3 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse6 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 (+ (select .cse6 .cse2) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse4) 4))))))))) is different from false [2023-12-02 20:44:43,129 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3208 |c_~#queue~0.offset|)) (.cse2 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_777 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (let ((.cse3 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_777) |c_~#queue~0.base|))) (or (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_781 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (<= 0 (+ |c_~#queue~0.offset| (* 4 (select (select (store (store |c_#memory_int| |c_~#queue~0.base| (let ((.cse0 (store .cse3 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse0 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 (+ (select .cse0 .cse2) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse2))))) (< (select .cse3 .cse2) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|)))) (forall ((v_ArrVal_777 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (let ((.cse4 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_777) |c_~#queue~0.base|))) (or (< (select .cse4 .cse2) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_781 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (<= (+ |c_~#queue~0.offset| (* 4 (select (select (store (store |c_#memory_int| |c_~#queue~0.base| (let ((.cse5 (store .cse4 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse5 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 (+ (select .cse5 .cse2) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse2)) 4) (select |c_#length| |c_~#queue~0.base|)))))))) is different from false [2023-12-02 20:44:43,195 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (+ 3208 |c_~#queue~0.offset|)) (.cse3 (+ |c_~#queue~0.offset| 3204)) (.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|))))) (and (forall ((v_ArrVal_777 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (let ((.cse4 (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_777) |c_~#queue~0.base|))) (or (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_781 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (<= 0 (+ (* (select (select (store (store .cse0 |c_~#queue~0.base| (let ((.cse1 (store .cse4 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse1 .cse2 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse3 (+ (select .cse1 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse3) 4) |c_~#queue~0.offset|))) (< (select .cse4 .cse3) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|)))) (forall ((v_ArrVal_777 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (let ((.cse5 (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_777) |c_~#queue~0.base|))) (or (< (select .cse5 .cse3) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_781 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (<= (+ (* (select (select (store (store .cse0 |c_~#queue~0.base| (let ((.cse6 (store .cse5 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse6 .cse2 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse3 (+ (select .cse6 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse3) 4) |c_~#queue~0.offset| 4) (select |c_#length| |c_~#queue~0.base|)))))))) is different from false [2023-12-02 20:44:43,226 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (+ 3208 |c_~#queue~0.offset|)) (.cse3 (+ |c_~#queue~0.offset| 3204)) (.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse7 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse8 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store .cse7 .cse8 (+ (select .cse7 .cse8) 1)))))) (and (forall ((v_ArrVal_777 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (let ((.cse4 (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_777) |c_~#queue~0.base|))) (or (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_781 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (<= (+ |c_~#queue~0.offset| (* 4 (select (select (store (store .cse0 |c_~#queue~0.base| (let ((.cse1 (store .cse4 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse1 .cse2 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse3 (+ (select .cse1 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse3)) 4) (select |c_#length| |c_~#queue~0.base|))) (< (select .cse4 .cse3) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|)))) (forall ((v_ArrVal_777 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (let ((.cse6 (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_777) |c_~#queue~0.base|))) (or (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_781 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (<= 0 (+ |c_~#queue~0.offset| (* 4 (select (select (store (store .cse0 |c_~#queue~0.base| (let ((.cse5 (store .cse6 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse5 .cse2 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse3 (+ (select .cse5 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse3))))) (< (select .cse6 .cse3) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|)))))) is different from false [2023-12-02 20:44:44,388 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse9 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse8 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (let ((.cse0 (select .cse9 .cse8)) (.cse5 (+ 3208 |c_~#queue~0.offset|)) (.cse2 (+ |c_~#queue~0.offset| 3204)) (.cse7 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (and (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83| Int)) (or (< .cse0 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83|) (forall ((v_ArrVal_777 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (let ((.cse3 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse6 (store .cse9 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83|) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse6 .cse7 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse8 (+ (select .cse6 .cse8) 1)))))) (let ((.cse1 (select (store .cse3 |c_~#stored_elements~0.base| v_ArrVal_777) |c_~#queue~0.base|))) (or (< (select .cse1 .cse2) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) (forall ((v_ArrVal_781 (Array Int Int)) (v_subst_3 Int) (v_subst_1 Int)) (<= 0 (+ (* (select (select (store (store .cse3 |c_~#queue~0.base| (let ((.cse4 (store .cse1 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_~#queue~0.offset|) v_subst_3))) (store (store .cse4 .cse5 (+ v_subst_1 1)) .cse2 (+ (select .cse4 .cse2) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse2) 4) |c_~#queue~0.offset|))))))))) (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83| Int)) (or (< .cse0 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83|) (forall ((v_ArrVal_777 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (let ((.cse11 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse13 (store .cse9 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83|) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse13 .cse7 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse8 (+ (select .cse13 .cse8) 1)))))) (let ((.cse10 (select (store .cse11 |c_~#stored_elements~0.base| v_ArrVal_777) |c_~#queue~0.base|))) (or (< (select .cse10 .cse2) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) (forall ((v_subst_4 Int) (v_ArrVal_781 (Array Int Int)) (v_subst_2 Int)) (<= (+ (* (select (select (store (store .cse11 |c_~#queue~0.base| (let ((.cse12 (store .cse10 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_~#queue~0.offset|) v_subst_4))) (store (store .cse12 .cse5 (+ v_subst_2 1)) .cse2 (+ (select .cse12 .cse2) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse2) 4) |c_~#queue~0.offset| 4) (select |c_#length| |c_~#queue~0.base|)))))))))))) is different from false [2023-12-02 20:45:06,546 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3208 |c_~#queue~0.offset|)) (.cse2 (+ |c_~#queue~0.offset| 3204))) (and (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83| Int) (v_ArrVal_773 (Array Int Int))) (let ((.cse5 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_773) |c_~#queue~0.base|))) (or (forall ((v_ArrVal_777 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (let ((.cse3 (select (store (store |c_#memory_int| |c_~#queue~0.base| (let ((.cse4 (store .cse5 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83|) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse4 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 (+ (select .cse4 .cse2) 1)))) |c_~#stored_elements~0.base| v_ArrVal_777) |c_~#queue~0.base|))) (or (forall ((v_ArrVal_781 (Array Int Int)) (v_subst_3 Int) (v_subst_1 Int)) (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store (store |c_#memory_int| |c_~#queue~0.base| (let ((.cse0 (store .cse3 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_~#queue~0.offset|) v_subst_3))) (store (store .cse0 .cse1 (+ v_subst_1 1)) .cse2 (+ (select .cse0 .cse2) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse2) 4)))) (< (select .cse3 .cse2) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|)))) (< (select .cse5 .cse2) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83|)))) (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83| Int) (v_ArrVal_773 (Array Int Int))) (let ((.cse6 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_773) |c_~#queue~0.base|))) (or (< (select .cse6 .cse2) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83|) (forall ((v_ArrVal_777 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80| Int)) (let ((.cse8 (select (store (store |c_#memory_int| |c_~#queue~0.base| (let ((.cse9 (store .cse6 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_83|) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse9 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 (+ (select .cse9 .cse2) 1)))) |c_~#stored_elements~0.base| v_ArrVal_777) |c_~#queue~0.base|))) (or (forall ((v_subst_4 Int) (v_ArrVal_781 (Array Int Int)) (v_subst_2 Int)) (<= (+ |c_~#queue~0.offset| 4 (* (select (select (store (store |c_#memory_int| |c_~#queue~0.base| (let ((.cse7 (store .cse8 (+ (* 4 |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|) |c_~#queue~0.offset|) v_subst_4))) (store (store .cse7 .cse1 (+ v_subst_2 1)) .cse2 (+ (select .cse7 .cse2) 1)))) |c_~#stored_elements~0.base| v_ArrVal_781) |c_~#queue~0.base|) .cse2) 4)) (select |c_#length| |c_~#queue~0.base|))) (< (select .cse8 .cse2) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_80|))))))))) is different from false [2023-12-02 20:45:06,614 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:06,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 334 treesize of output 234 [2023-12-02 20:45:06,660 INFO L349 Elim1Store]: treesize reduction 42, result has 58.0 percent of original size [2023-12-02 20:45:06,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 335 treesize of output 310 [2023-12-02 20:45:06,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-12-02 20:45:06,699 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:06,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 134 treesize of output 132 [2023-12-02 20:45:06,710 INFO L378 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 13 treesize of output 9 [2023-12-02 20:45:06,735 INFO L378 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 8 treesize of output 4 [2023-12-02 20:45:06,783 INFO L349 Elim1Store]: treesize reduction 36, result has 51.4 percent of original size [2023-12-02 20:45:06,783 INFO L378 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 4 case distinctions, treesize of input 49 treesize of output 54 [2023-12-02 20:45:06,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:06,845 INFO L378 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 99 treesize of output 87 [2023-12-02 20:45:06,882 INFO L378 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 [2023-12-02 20:45:06,889 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,891 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 20:45:06,898 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 79 [2023-12-02 20:45:06,911 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,913 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:06,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 43 [2023-12-02 20:45:06,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:06,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 331 treesize of output 231 [2023-12-02 20:45:06,936 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,944 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:06,944 INFO L378 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 3 case distinctions, treesize of input 135 treesize of output 126 [2023-12-02 20:45:06,963 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,965 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 20:45:06,969 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,971 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 20:45:06,976 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:06,980 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,980 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,981 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:06,986 INFO L378 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 25 [2023-12-02 20:45:06,990 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:06,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 20:45:07,003 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,006 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 20:45:07,011 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:07,015 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,016 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,016 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,025 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-12-02 20:45:07,025 INFO L378 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 1 [2023-12-02 20:45:07,031 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,033 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 20:45:07,043 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,046 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 20:45:07,051 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,054 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 20:45:07,058 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,061 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 20:45:07,089 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 68 [2023-12-02 20:45:07,100 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,101 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:07,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-02 20:45:07,110 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 160 treesize of output 142 [2023-12-02 20:45:07,129 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,129 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,130 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,131 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,131 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:07,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2023-12-02 20:45:07,144 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,147 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 83 [2023-12-02 20:45:07,156 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,157 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:07,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:07,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2023-12-02 20:45:09,582 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:09,583 INFO L378 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 25 treesize of output 29 [2023-12-02 20:45:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 6 proven. 21 refuted. 3 times theorem prover too weak. 1 trivial. 41 not checked. [2023-12-02 20:45:11,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392300605] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:45:11,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:45:11,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16, 22] total 56 [2023-12-02 20:45:11,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762055298] [2023-12-02 20:45:11,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:45:11,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-12-02 20:45:11,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:45:11,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-12-02 20:45:11,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=1913, Unknown=57, NotChecked=1010, Total=3306 [2023-12-02 20:45:11,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:45:11,767 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:45:11,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 3.1578947368421053) internal successors, (180), 57 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:45:11,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:45:11,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:45:11,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:45:11,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:45:11,767 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:45:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:45:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:45:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:45:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:45:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:45:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:45:11,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:45:16,146 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 [1] [2023-12-02 20:45:18,484 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 [1] [2023-12-02 20:45:27,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:45:27,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:45:27,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:45:27,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:45:27,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:45:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:45:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:45:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:45:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:45:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:45:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:45:27,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:45:27,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-12-02 20:45:28,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-02 20:45:28,069 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:45:28,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:45:28,069 INFO L85 PathProgramCache]: Analyzing trace with hash 974154129, now seen corresponding path program 2 times [2023-12-02 20:45:28,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:45:28,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155182987] [2023-12-02 20:45:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:45:28,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:45:28,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:45:31,729 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 211 proven. 74 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 20:45:31,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:45:31,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155182987] [2023-12-02 20:45:31,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155182987] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:45:31,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2031906145] [2023-12-02 20:45:31,730 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-02 20:45:31,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:45:31,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:45:31,731 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:45:31,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-02 20:45:32,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-02 20:45:32,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:45:32,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 106 conjunts are in the unsatisfiable core [2023-12-02 20:45:32,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:45:32,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 20:45:32,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:32,249 INFO L378 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 11 [2023-12-02 20:45:32,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:32,341 INFO L378 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 27 treesize of output 11 [2023-12-02 20:45:32,368 INFO L378 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 11 [2023-12-02 20:45:32,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-02 20:45:32,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:32,491 INFO L378 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 11 [2023-12-02 20:45:32,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:32,598 INFO L378 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 27 treesize of output 11 [2023-12-02 20:45:32,619 INFO L378 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 11 [2023-12-02 20:45:32,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-02 20:45:32,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:32,760 INFO L378 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 11 [2023-12-02 20:45:32,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:32,877 INFO L378 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 27 treesize of output 11 [2023-12-02 20:45:32,909 INFO L378 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 11 [2023-12-02 20:45:32,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-12-02 20:45:33,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:33,035 INFO L378 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 11 [2023-12-02 20:45:33,123 INFO L378 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 11 [2023-12-02 20:45:33,140 INFO L378 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 11 [2023-12-02 20:45:33,175 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 211 proven. 74 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 20:45:33,175 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:45:33,384 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_963 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (not (= 800 (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse0 (+ |c_~#queue~0.offset| (* (select .cse0 .cse1) 4)) |t1Thread1of1ForFork0_enqueue_~x#1|)) .cse1))))) is different from false [2023-12-02 20:45:33,391 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_963 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (not (= 800 (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store .cse2 .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|)) .cse1))))) is different from false [2023-12-02 20:45:33,408 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_963 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (not (= 800 (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store (store .cse2 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse0 (+ |c_~#queue~0.offset| (* (select .cse0 .cse1) 4)) |t1Thread1of1ForFork0_enqueue_~x#1|)) .cse1))))) is different from false [2023-12-02 20:45:33,422 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_963 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_67| Int) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (not (= (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ (* |c_t1Thread1of1ForFork0_enqueue_#t~mem36#1| 4) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store (store .cse2 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_67|)) .cse1)) 800))) is different from false [2023-12-02 20:45:33,439 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| Int)) (let ((.cse4 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (or (forall ((v_ArrVal_963 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_67| Int) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (not (= 800 (let ((.cse1 (+ |c_~#queue~0.offset| 3204))) (select (let ((.cse0 (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (store .cse4 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| 4) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse2 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse3 (+ (select .cse2 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_67|)) .cse1))))) (< (select .cse4 .cse3) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108|)))) is different from false [2023-12-02 20:45:33,931 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_963 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_67| Int) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_959 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (let ((.cse2 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse5 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse6 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store (store .cse5 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse6 (+ (select .cse5 .cse6) 1)))))) (let ((.cse4 (select (store .cse2 |c_~#stored_elements~0.base| v_ArrVal_959) |c_~#queue~0.base|)) (.cse1 (+ |c_~#queue~0.offset| 3204))) (or (not (= 800 (select (let ((.cse0 (select (store (store .cse2 |c_~#queue~0.base| (let ((.cse3 (store .cse4 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| 4) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse3 (+ 3208 |c_~#queue~0.offset|) (+ |v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| 1)) .cse1 (+ (select .cse3 .cse1) 1)))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_67|)) .cse1))) (< (select .cse4 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108|))))) is different from false [2023-12-02 20:45:33,965 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_963 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_67| Int) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_959 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_70| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (let ((.cse2 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse5 (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ (* |c_t1Thread1of1ForFork0_enqueue_#t~mem36#1| 4) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|)) (.cse6 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store (store .cse5 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse6 (+ (select .cse5 .cse6) 1)))))) (let ((.cse4 (select (store .cse2 |c_~#stored_elements~0.base| v_ArrVal_959) |c_~#queue~0.base|)) (.cse1 (+ |c_~#queue~0.offset| 3204))) (or (not (= (select (let ((.cse0 (select (store (store .cse2 |c_~#queue~0.base| (let ((.cse3 (store .cse4 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_70|))) (store (store .cse3 (+ 3208 |c_~#queue~0.offset|) (+ |v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| 1)) .cse1 (+ (select .cse3 .cse1) 1)))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_67|)) .cse1) 800)) (< (select .cse4 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108|))))) is different from false [2023-12-02 20:45:33,993 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111| Int)) (let ((.cse7 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse6 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (or (forall ((v_ArrVal_963 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_67| Int) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_959 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_70| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (let ((.cse2 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse5 (store .cse7 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111| 4) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse5 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse6 (+ (select .cse5 .cse6) 1)))))) (let ((.cse4 (select (store .cse2 |c_~#stored_elements~0.base| v_ArrVal_959) |c_~#queue~0.base|)) (.cse1 (+ |c_~#queue~0.offset| 3204))) (or (not (= 800 (select (let ((.cse0 (select (store (store .cse2 |c_~#queue~0.base| (let ((.cse3 (store .cse4 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_70|))) (store (store .cse3 (+ 3208 |c_~#queue~0.offset|) (+ |v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| 1)) .cse1 (+ 1 (select .cse3 .cse1))))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse0 (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_67|)) .cse1))) (< (select .cse4 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108|))))) (< (select .cse7 .cse6) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111|)))) is different from false [2023-12-02 20:45:34,559 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111| Int) (v_ArrVal_963 (Array Int Int)) (v_ArrVal_955 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_67| Int) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_959 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_70| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (let ((.cse3 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse8 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse9 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store .cse8 .cse9 (+ (select .cse8 .cse9) 1)))))) (let ((.cse5 (+ 3208 |c_~#queue~0.offset|)) (.cse1 (+ |c_~#queue~0.offset| 3204)) (.cse0 (select (store .cse3 |c_~#stored_elements~0.base| v_ArrVal_955) |c_~#queue~0.base|))) (let ((.cse6 (select (store (store .cse3 |c_~#queue~0.base| (let ((.cse7 (store .cse0 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111| 4) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse7 .cse5 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse1 (+ (select .cse7 .cse1) 1)))) |c_~#stored_elements~0.base| v_ArrVal_959) |c_~#queue~0.base|))) (or (< (select .cse0 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111|) (not (= (select (let ((.cse2 (select (store (store .cse3 |c_~#queue~0.base| (let ((.cse4 (store .cse6 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_70|))) (store (store .cse4 .cse5 (+ |v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| 1)) .cse1 (+ (select .cse4 .cse1) 1)))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse2 (+ (* (select .cse2 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_67|)) .cse1) 800)) (< (select .cse6 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108|)))))) is different from false [2023-12-02 20:45:34,632 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111| Int) (v_ArrVal_963 (Array Int Int)) (v_ArrVal_955 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_~x#1_67| Int) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~post38#1_107| Int) (v_ArrVal_959 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_70| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (let ((.cse2 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse8 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse9 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store (store .cse8 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse9 (+ (select .cse8 .cse9) 1)))))) (let ((.cse4 (+ 3208 |c_~#queue~0.offset|)) (.cse1 (+ |c_~#queue~0.offset| 3204)) (.cse6 (select (store .cse2 |c_~#stored_elements~0.base| v_ArrVal_955) |c_~#queue~0.base|))) (let ((.cse5 (select (store (store .cse2 |c_~#queue~0.base| (let ((.cse7 (store .cse6 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111| 4) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse7 .cse4 (+ |v_t1Thread1of1ForFork0_enqueue_#t~post38#1_107| 1)) .cse1 (+ (select .cse7 .cse1) 1)))) |c_~#stored_elements~0.base| v_ArrVal_959) |c_~#queue~0.base|))) (or (not (= 800 (select (let ((.cse0 (select (store (store .cse2 |c_~#queue~0.base| (let ((.cse3 (store .cse5 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_70|))) (store (store .cse3 .cse4 (+ |v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| 1)) .cse1 (+ 1 (select .cse3 .cse1))))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse0 (+ (* 4 (select .cse0 .cse1)) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_67|)) .cse1))) (< (select .cse5 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108|) (< (select .cse6 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111|)))))) is different from false [2023-12-02 20:45:34,688 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_~x#1_67| Int) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111| Int) (v_ArrVal_963 (Array Int Int)) (v_ArrVal_955 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~post38#1_107| Int) (v_ArrVal_959 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_70| Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_73| Int)) (let ((.cse4 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse8 (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ (* |c_t1Thread1of1ForFork0_enqueue_#t~mem36#1| 4) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|)) (.cse9 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store (store .cse8 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse9 (+ (select .cse8 .cse9) 1)))))) (let ((.cse6 (+ 3208 |c_~#queue~0.offset|)) (.cse1 (+ |c_~#queue~0.offset| 3204)) (.cse2 (select (store .cse4 |c_~#stored_elements~0.base| v_ArrVal_955) |c_~#queue~0.base|))) (let ((.cse0 (select (store (store .cse4 |c_~#queue~0.base| (let ((.cse7 (store .cse2 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111| 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_73|))) (store (store .cse7 .cse6 (+ |v_t1Thread1of1ForFork0_enqueue_#t~post38#1_107| 1)) .cse1 (+ (select .cse7 .cse1) 1)))) |c_~#stored_elements~0.base| v_ArrVal_959) |c_~#queue~0.base|))) (or (< (select .cse0 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108|) (< (select .cse2 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111|) (not (= (select (let ((.cse3 (select (store (store .cse4 |c_~#queue~0.base| (let ((.cse5 (store .cse0 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_70|))) (store (store .cse5 .cse6 (+ |v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| 1)) .cse1 (+ (select .cse5 .cse1) 1)))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse3 (+ |c_~#queue~0.offset| (* (select .cse3 .cse1) 4)) |v_t1Thread1of1ForFork0_enqueue_~x#1_67|)) .cse1) 800))))))) is different from false [2023-12-02 20:45:34,733 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_114| Int)) (let ((.cse1 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|)) (.cse0 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|))) (or (< (select .cse0 .cse1) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_114|) (forall ((|v_t1Thread1of1ForFork0_enqueue_~x#1_67| Int) (|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| Int) (|t1Thread1of1ForFork0_enqueue_~x#1| Int) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111| Int) (v_ArrVal_963 (Array Int Int)) (v_ArrVal_955 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~post38#1_107| Int) (v_ArrVal_959 (Array Int Int)) (|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_70| Int) (|v_t1Thread1of1ForFork0_enqueue_~x#1_73| Int)) (let ((.cse6 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse10 (store .cse0 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_114| 4) |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse10 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse1 (+ (select .cse10 .cse1) 1)))))) (let ((.cse8 (+ 3208 |c_~#queue~0.offset|)) (.cse3 (+ |c_~#queue~0.offset| 3204)) (.cse4 (select (store .cse6 |c_~#stored_elements~0.base| v_ArrVal_955) |c_~#queue~0.base|))) (let ((.cse2 (select (store (store .cse6 |c_~#queue~0.base| (let ((.cse9 (store .cse4 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111| 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_73|))) (store (store .cse9 .cse8 (+ |v_t1Thread1of1ForFork0_enqueue_#t~post38#1_107| 1)) .cse3 (+ (select .cse9 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_959) |c_~#queue~0.base|))) (or (< (select .cse2 .cse3) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108|) (< (select .cse4 .cse3) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_111|) (not (= (select (let ((.cse5 (select (store (store .cse6 |c_~#queue~0.base| (let ((.cse7 (store .cse2 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_108| 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork0_enqueue_~x#1_70|))) (store (store .cse7 .cse8 (+ |v_t1Thread1of1ForFork0_enqueue_#t~post38#1_103| 1)) .cse3 (+ (select .cse7 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_963) |c_~#queue~0.base|))) (store .cse5 (+ |c_~#queue~0.offset| (* (select .cse5 .cse3) 4)) |v_t1Thread1of1ForFork0_enqueue_~x#1_67|)) .cse3) 800)))))))))) is different from false [2023-12-02 20:45:35,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:35,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 1286 treesize of output 886 [2023-12-02 20:45:35,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:35,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1026 treesize of output 1010 [2023-12-02 20:45:35,413 INFO L378 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 255 treesize of output 243 [2023-12-02 20:45:35,425 INFO L378 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 13 treesize of output 9 [2023-12-02 20:45:35,437 INFO L378 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 13 treesize of output 9 [2023-12-02 20:45:35,449 INFO L378 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 13 treesize of output 9 [2023-12-02 20:45:35,484 INFO L378 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 8 treesize of output 4 [2023-12-02 20:45:35,551 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:35,552 INFO L378 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 266 treesize of output 246 [2023-12-02 20:45:35,960 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 174 proven. 36 refuted. 1 times theorem prover too weak. 22 trivial. 74 not checked. [2023-12-02 20:45:35,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2031906145] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:45:35,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:45:35,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 20, 30] total 72 [2023-12-02 20:45:35,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391286350] [2023-12-02 20:45:35,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:45:35,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2023-12-02 20:45:35,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:45:35,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2023-12-02 20:45:35,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=778, Invalid=2879, Unknown=51, NotChecked=1548, Total=5256 [2023-12-02 20:45:35,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:45:35,966 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:45:35,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 3.287671232876712) internal successors, (240), 72 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:45:35,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:45:35,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:45:35,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:45:35,966 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:45:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:45:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:45:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:45:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:45:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:45:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:45:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:45:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-12-02 20:45:35,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:45:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:45:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:45:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:45:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:45:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:45:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:45:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:45:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:45:44,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:45:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:45:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:45:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:45:44,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-12-02 20:45:44,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-02 20:45:44,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-02 20:45:44,976 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:45:44,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:45:44,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1822832371, now seen corresponding path program 3 times [2023-12-02 20:45:44,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:45:44,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095064475] [2023-12-02 20:45:44,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:45:44,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:45:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:45:46,489 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 98 proven. 7 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-12-02 20:45:46,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:45:46,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095064475] [2023-12-02 20:45:46,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095064475] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:45:46,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035197003] [2023-12-02 20:45:46,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 20:45:46,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:45:46,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:45:46,491 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:45:46,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-02 20:45:47,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-12-02 20:45:47,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:45:47,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 101 conjunts are in the unsatisfiable core [2023-12-02 20:45:47,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:45:47,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:47,422 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2023-12-02 20:45:47,423 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 13 [2023-12-02 20:45:47,431 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 20:45:47,431 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-12-02 20:45:47,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:47,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:47,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-12-02 20:45:47,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:47,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 20:45:48,830 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-12-02 20:45:48,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:48,900 INFO L378 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 17 treesize of output 12 [2023-12-02 20:45:49,087 INFO L349 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2023-12-02 20:45:49,087 INFO L378 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 36 treesize of output 30 [2023-12-02 20:45:49,150 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-12-02 20:45:49,444 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 18 [2023-12-02 20:45:49,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:49,551 INFO L378 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 25 treesize of output 18 [2023-12-02 20:45:49,787 INFO L349 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2023-12-02 20:45:49,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 40 [2023-12-02 20:45:49,930 INFO L378 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 46 treesize of output 22 [2023-12-02 20:45:50,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 24 [2023-12-02 20:45:50,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:45:50,307 INFO L378 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 28 [2023-12-02 20:45:50,538 INFO L378 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 38 treesize of output 18 [2023-12-02 20:45:50,625 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 145 proven. 31 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-12-02 20:45:50,625 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:45:50,777 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_1125 (Array Int Int))) (<= 0 (+ (* (select (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1125) |c_~#queue~0.base|) .cse0) 4) |c_~#queue~0.offset|))) (forall ((v_ArrVal_1125 (Array Int Int))) (<= (+ (* (select (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1125) |c_~#queue~0.base|) .cse0) 4) |c_~#queue~0.offset| 4) (select |c_#length| |c_~#queue~0.base|))))) is different from false [2023-12-02 20:45:50,791 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|) (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|) (+ 1 |c_t1Thread1of1ForFork0_enqueue_#t~post41#1|)))) (.cse1 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_1125 (Array Int Int))) (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1125) |c_~#queue~0.base|) .cse1) 4)))) (forall ((v_ArrVal_1125 (Array Int Int))) (<= (+ |c_~#queue~0.offset| (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1125) |c_~#queue~0.base|) .cse1) 4) 4) (select |c_#length| |c_~#queue~0.base|))))) is different from false [2023-12-02 20:45:50,802 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store .cse2 .cse3 (+ (select .cse2 .cse3) 1))))) (.cse1 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_1125 (Array Int Int))) (<= 0 (+ (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1125) |c_~#queue~0.base|) .cse1) 4) |c_~#queue~0.offset|))) (forall ((v_ArrVal_1125 (Array Int Int))) (<= (+ (* (select (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1125) |c_~#queue~0.base|) .cse1) 4) |c_~#queue~0.offset| 4) (select |c_#length| |c_~#queue~0.base|))))) is different from false [2023-12-02 20:45:50,828 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse2 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (let ((.cse1 (+ 3208 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|)) (.cse3 (+ (select .cse0 .cse2) 1)) (.cse4 (+ |c_~#queue~0.offset| 3204))) (and (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_1125 (Array Int Int))) (<= 0 (+ (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse0 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 .cse3)) |c_~#stored_elements~0.base| v_ArrVal_1125) |c_~#queue~0.base|) .cse4) 4) |c_~#queue~0.offset|))) (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_1125 (Array Int Int))) (<= (+ (* (select (select (store (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (store (store .cse0 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 .cse3)) |c_~#stored_elements~0.base| v_ArrVal_1125) |c_~#queue~0.base|) .cse4) 4) |c_~#queue~0.offset| 4) (select |c_#length| |c_~#queue~0.base|)))))) is different from false [2023-12-02 20:45:58,042 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse19 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (or (let ((.cse6 (select |c_#length| |c_~#queue~0.base|)) (.cse2 (+ 3208 |c_~#queue~0.offset|)) (.cse3 (+ |c_~#queue~0.offset| 3204)) (.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse18 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|))) (store .cse18 .cse19 (+ (select .cse18 .cse19) 1)))))) (and (forall ((v_ArrVal_1117 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (let ((.cse8 (let ((.cse10 (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1117) |c_~#queue~0.base|))) (store .cse10 (+ (* (select .cse10 .cse3) 4) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|)))) (let ((.cse9 (select .cse8 .cse3))) (or (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_1121 (Array Int Int))) (let ((.cse4 (select (store (store .cse0 |c_~#queue~0.base| (store (store .cse8 .cse2 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse3 (+ 1 .cse9))) |c_~#stored_elements~0.base| v_ArrVal_1121) |c_~#queue~0.base|))) (let ((.cse7 (* (select .cse4 .cse3) 4))) (let ((.cse5 (+ |c_~#queue~0.offset| .cse7))) (or (forall ((v_subst_15 Int) (v_ArrVal_1125 (Array Int Int)) (v_subst_17 Int)) (<= 0 (+ (* 4 (select (select (store (store .cse0 |c_~#queue~0.base| (let ((.cse1 (store .cse4 .cse5 v_subst_17))) (store (store .cse1 .cse2 (+ v_subst_15 1)) .cse3 (+ (select .cse1 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_1125) |c_~#queue~0.base|) .cse3)) |c_~#queue~0.offset|))) (< .cse5 0) (< .cse6 (+ |c_~#queue~0.offset| 4 .cse7))))))) (= 800 .cse9))))) (forall ((v_ArrVal_1117 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (let ((.cse16 (let ((.cse17 (select (store .cse0 |c_~#stored_elements~0.base| v_ArrVal_1117) |c_~#queue~0.base|))) (store .cse17 (+ (* (select .cse17 .cse3) 4) |c_~#queue~0.offset|) |t1Thread1of1ForFork0_enqueue_~x#1|)))) (let ((.cse11 (select .cse16 .cse3))) (or (= 800 .cse11) (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_1121 (Array Int Int))) (let ((.cse13 (select (store (store .cse0 |c_~#queue~0.base| (store (store .cse16 .cse2 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse3 (+ 1 .cse11))) |c_~#stored_elements~0.base| v_ArrVal_1121) |c_~#queue~0.base|))) (let ((.cse15 (* (select .cse13 .cse3) 4))) (let ((.cse14 (+ |c_~#queue~0.offset| .cse15))) (or (forall ((v_subst_14 Int) (v_ArrVal_1125 (Array Int Int)) (v_subst_16 Int)) (<= (+ (* (select (select (store (store .cse0 |c_~#queue~0.base| (let ((.cse12 (store .cse13 .cse14 v_subst_16))) (store (store .cse12 .cse2 (+ v_subst_14 1)) .cse3 (+ (select .cse12 .cse3) 1)))) |c_~#stored_elements~0.base| v_ArrVal_1125) |c_~#queue~0.base|) .cse3) 4) |c_~#queue~0.offset| 4) .cse6)) (< .cse14 0) (< .cse6 (+ |c_~#queue~0.offset| 4 .cse15))))))))))))) (< .cse19 0) (= |c_t1Thread1of1ForFork0_enqueue_#t~mem39#1| 800))) is different from false [2023-12-02 20:45:58,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:58,083 INFO L378 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 2 case distinctions, treesize of input 2244 treesize of output 1062 [2023-12-02 20:45:58,278 INFO L349 Elim1Store]: treesize reduction 186, result has 50.1 percent of original size [2023-12-02 20:45:58,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 1170 treesize of output 1005 [2023-12-02 20:45:58,404 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:45:58,407 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 20:45:58,498 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 20:45:58,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 514 treesize of output 1 [2023-12-02 20:45:58,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:45:58,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 815 treesize of output 787 [2023-12-02 20:45:58,624 INFO L378 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 413 treesize of output 409 [2023-12-02 20:45:58,641 INFO L378 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 409 treesize of output 401 [2023-12-02 20:45:58,660 INFO L378 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 411 treesize of output 399 [2023-12-02 20:45:58,683 INFO L378 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 404 treesize of output 392 [2023-12-02 20:45:58,706 INFO L378 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 387 treesize of output 379 [2023-12-02 20:45:58,726 INFO L378 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 379 treesize of output 375 [2023-12-02 20:45:58,782 INFO L378 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 [2023-12-02 20:46:01,458 INFO L349 Elim1Store]: treesize reduction 10, result has 98.1 percent of original size [2023-12-02 20:46:01,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 55 case distinctions, treesize of input 214443 treesize of output 167224 [2023-12-02 20:46:04,126 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-02 20:46:04,270 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-02 20:46:04,305 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-02 20:46:04,379 WARN L667 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2023-12-02 20:46:04,420 WARN L667 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2023-12-02 20:46:05,159 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 20:46:05,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 440 treesize of output 1 [2023-12-02 20:46:05,216 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:05,216 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 416 treesize of output 414 [2023-12-02 20:46:05,245 INFO L378 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 221 treesize of output 213 [2023-12-02 20:46:05,256 INFO L378 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 213 treesize of output 209 [2023-12-02 20:46:05,269 INFO L378 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 219 treesize of output 207 [2023-12-02 20:46:05,282 INFO L378 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 212 treesize of output 200 [2023-12-02 20:46:05,296 INFO L378 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 195 treesize of output 187 [2023-12-02 20:46:05,307 INFO L378 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 187 treesize of output 183 [2023-12-02 20:46:05,393 INFO L378 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 [2023-12-02 20:46:05,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:05,406 INFO L378 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 20 treesize of output 20 [2023-12-02 20:46:05,558 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 20:46:05,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 349 treesize of output 1 [2023-12-02 20:46:05,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:05,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 423 treesize of output 423 [2023-12-02 20:46:05,668 INFO L378 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 261 treesize of output 257 [2023-12-02 20:46:05,682 INFO L378 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 257 treesize of output 249 [2023-12-02 20:46:05,696 INFO L378 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 257 treesize of output 245 [2023-12-02 20:46:05,715 INFO L378 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 237 treesize of output 229 [2023-12-02 20:46:05,731 INFO L378 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 225 treesize of output 217 [2023-12-02 20:46:05,745 INFO L378 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 217 treesize of output 213 [2023-12-02 20:46:05,851 INFO L378 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 [2023-12-02 20:46:05,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:05,866 INFO L378 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 20 treesize of output 20 [2023-12-02 20:46:05,935 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-02 20:46:05,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 483 treesize of output 1 [2023-12-02 20:46:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 121 refuted. 4 times theorem prover too weak. 64 trivial. 51 not checked. [2023-12-02 20:46:07,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035197003] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:46:07,402 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:46:07,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 21, 27] total 63 [2023-12-02 20:46:07,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114979681] [2023-12-02 20:46:07,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:46:07,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-12-02 20:46:07,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:46:07,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-12-02 20:46:07,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=372, Invalid=2967, Unknown=103, NotChecked=590, Total=4032 [2023-12-02 20:46:07,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:46:07,406 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:46:07,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 2.671875) internal successors, (171), 63 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:46:07,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:46:07,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:46:07,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:46:07,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:46:07,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:46:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:46:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:46:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:46:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:46:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:46:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:46:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:46:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-12-02 20:46:07,407 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:46:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:46:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:46:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:46:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:46:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:46:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:46:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:46:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:46:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:46:17,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:46:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:46:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:46:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 20:46:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-02 20:46:17,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-02 20:46:17,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:46:17,561 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:46:17,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:46:17,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1452092335, now seen corresponding path program 3 times [2023-12-02 20:46:17,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:46:17,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378831756] [2023-12-02 20:46:17,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:46:17,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:46:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:46:20,945 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 270 proven. 25 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2023-12-02 20:46:20,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:46:20,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378831756] [2023-12-02 20:46:20,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378831756] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:46:20,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508996011] [2023-12-02 20:46:20,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 20:46:20,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:46:20,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:46:20,947 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:46:20,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-02 20:46:21,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-02 20:46:21,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:46:21,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 60 conjunts are in the unsatisfiable core [2023-12-02 20:46:21,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:46:21,548 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 20:46:21,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-12-02 20:46:22,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-12-02 20:46:22,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:46:22,746 INFO L378 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 18 treesize of output 13 [2023-12-02 20:46:22,869 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:22,878 INFO L349 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2023-12-02 20:46:22,878 INFO L378 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 16 [2023-12-02 20:46:22,969 INFO L378 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 29 treesize of output 13 [2023-12-02 20:46:23,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2023-12-02 20:46:23,209 INFO L378 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 18 treesize of output 13 [2023-12-02 20:46:23,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:46:23,261 INFO L378 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 18 treesize of output 13 [2023-12-02 20:46:23,350 INFO L378 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 [2023-12-02 20:46:23,393 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 186 proven. 48 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2023-12-02 20:46:23,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:46:23,642 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_1365 (Array Int Int)) (v_ArrVal_1364 (Array Int Int))) (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1364) |c_~#stored_elements~0.base| v_ArrVal_1365) |c_~#queue~0.base|) .cse0) 4)))) (forall ((v_ArrVal_1365 (Array Int Int)) (v_ArrVal_1364 (Array Int Int))) (<= (+ |c_~#queue~0.offset| 4 (* (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1364) |c_~#stored_elements~0.base| v_ArrVal_1365) |c_~#queue~0.base|) .cse0) 4)) (select |c_#length| |c_~#queue~0.base|))))) is different from false [2023-12-02 20:46:23,804 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (store |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base| (let ((.cse2 (select |c_#memory_int| |c_t1Thread1of1ForFork0_enqueue_~q#1.base|)) (.cse3 (+ 3204 |c_t1Thread1of1ForFork0_enqueue_~q#1.offset|))) (store .cse2 .cse3 (+ (select .cse2 .cse3) 1))))) (.cse1 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_1365 (Array Int Int)) (v_ArrVal_1364 (Array Int Int))) (<= 0 (+ |c_~#queue~0.offset| (* (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1364) |c_~#stored_elements~0.base| v_ArrVal_1365) |c_~#queue~0.base|) .cse1) 4)))) (forall ((v_ArrVal_1365 (Array Int Int)) (v_ArrVal_1364 (Array Int Int))) (<= (+ |c_~#queue~0.offset| (* (select (select (store (store .cse0 |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1364) |c_~#stored_elements~0.base| v_ArrVal_1365) |c_~#queue~0.base|) .cse1) 4) 4) (select |c_#length| |c_~#queue~0.base|))))) is different from false [2023-12-02 20:46:24,902 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (+ 3208 |c_~#queue~0.offset|)) (.cse2 (+ |c_~#queue~0.offset| 3204))) (and (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_153| Int) (v_ArrVal_1360 (Array Int Int))) (let ((.cse4 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_153| 4) |c_~#queue~0.offset|)) (.cse3 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1360) |c_~#queue~0.base|))) (or (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_1365 (Array Int Int)) (v_ArrVal_1364 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (<= (+ |c_~#queue~0.offset| 4 (* 4 (select (select (store (store (store |c_#memory_int| |c_~#queue~0.base| (let ((.cse0 (store .cse3 .cse4 |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse0 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 (+ (select .cse0 .cse2) 1)))) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1364) |c_~#stored_elements~0.base| v_ArrVal_1365) |c_~#queue~0.base|) .cse2))) (select |c_#length| |c_~#queue~0.base|))) (< .cse4 0) (< (select .cse3 .cse2) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_153|)))) (forall ((|v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_153| Int) (v_ArrVal_1360 (Array Int Int))) (let ((.cse5 (+ (* |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_153| 4) |c_~#queue~0.offset|)) (.cse7 (select (store |c_#memory_int| |c_~#stored_elements~0.base| v_ArrVal_1360) |c_~#queue~0.base|))) (or (< .cse5 0) (forall ((|t1Thread1of1ForFork0_enqueue_#t~post38#1| Int) (v_ArrVal_1365 (Array Int Int)) (v_ArrVal_1364 (Array Int Int)) (|t1Thread1of1ForFork0_enqueue_~x#1| Int)) (<= 0 (+ |c_~#queue~0.offset| (* 4 (select (select (store (store (store |c_#memory_int| |c_~#queue~0.base| (let ((.cse6 (store .cse7 .cse5 |t1Thread1of1ForFork0_enqueue_~x#1|))) (store (store .cse6 .cse1 (+ 1 |t1Thread1of1ForFork0_enqueue_#t~post38#1|)) .cse2 (+ (select .cse6 .cse2) 1)))) |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1364) |c_~#stored_elements~0.base| v_ArrVal_1365) |c_~#queue~0.base|) .cse2))))) (< (select .cse7 .cse2) |v_t1Thread1of1ForFork0_enqueue_#t~mem36#1_153|)))))) is different from false [2023-12-02 20:46:24,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:24,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 87 [2023-12-02 20:46:24,970 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:24,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 277 treesize of output 277 [2023-12-02 20:46:24,979 INFO L378 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 45 treesize of output 41 [2023-12-02 20:46:24,985 INFO L378 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 13 treesize of output 9 [2023-12-02 20:46:24,997 INFO L378 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 8 treesize of output 4 [2023-12-02 20:46:25,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:25,009 INFO L378 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 79 treesize of output 75 [2023-12-02 20:46:25,077 INFO L378 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 32 treesize of output 24 [2023-12-02 20:46:25,087 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:25,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 90 [2023-12-02 20:46:25,092 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:25,136 INFO L349 Elim1Store]: treesize reduction 42, result has 58.0 percent of original size [2023-12-02 20:46:25,137 INFO L378 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 4 case distinctions, treesize of input 81 treesize of output 95 [2023-12-02 20:46:25,150 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:25,150 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:25,152 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 20:46:25,159 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:25,159 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:25,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:25,171 INFO L378 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 1 case distinctions, treesize of input 86 treesize of output 82 [2023-12-02 20:46:25,187 INFO L378 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 8 treesize of output 4 [2023-12-02 20:46:25,200 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:25,204 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:25,207 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:25,257 INFO L349 Elim1Store]: treesize reduction 70, result has 40.7 percent of original size [2023-12-02 20:46:25,257 INFO L378 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 4 case distinctions, treesize of input 57 treesize of output 59 [2023-12-02 20:46:25,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:25,322 INFO L378 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 105 treesize of output 89 [2023-12-02 20:46:25,376 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:25,377 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:25,379 WARN L214 Elim1Store]: Array PQE input equivalent to true [2023-12-02 20:46:27,021 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:27,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2023-12-02 20:46:27,134 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 61 proven. 79 refuted. 31 times theorem prover too weak. 487 trivial. 63 not checked. [2023-12-02 20:46:27,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508996011] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:46:27,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:46:27,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 15] total 46 [2023-12-02 20:46:27,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89424396] [2023-12-02 20:46:27,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:46:27,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-12-02 20:46:27,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:46:27,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-12-02 20:46:27,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=1668, Unknown=39, NotChecked=258, Total=2162 [2023-12-02 20:46:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:46:27,138 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:46:27,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.5106382978723403) internal successors, (165), 46 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:46:27,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:46:27,138 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-12-02 20:46:27,139 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:46:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:46:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:46:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:46:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:46:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:46:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:46:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:46:36,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:46:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:46:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:46:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:46:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:46:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 20:46:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-12-02 20:46:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-02 20:46:36,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-12-02 20:46:36,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-02 20:46:36,673 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:46:36,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:46:36,673 INFO L85 PathProgramCache]: Analyzing trace with hash -284202479, now seen corresponding path program 4 times [2023-12-02 20:46:36,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:46:36,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040487556] [2023-12-02 20:46:36,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:46:36,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:46:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:46:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 150 proven. 561 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 20:46:47,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:46:47,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040487556] [2023-12-02 20:46:47,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040487556] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:46:47,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218215861] [2023-12-02 20:46:47,285 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 20:46:47,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:46:47,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:46:47,286 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:46:47,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-02 20:46:54,979 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 20:46:54,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:46:54,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 1181 conjuncts, 60 conjunts are in the unsatisfiable core [2023-12-02 20:46:54,995 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:46:55,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2023-12-02 20:46:56,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 20:46:56,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:46:56,658 INFO L378 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 11 [2023-12-02 20:46:56,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:46:56,726 INFO L378 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 11 [2023-12-02 20:46:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 78 proven. 47 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2023-12-02 20:46:56,893 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:46:57,123 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_~#queue~0.offset| 3204))) (and (forall ((v_ArrVal_1602 (Array Int Int)) (v_ArrVal_1601 (Array Int Int))) (<= 0 (+ (* (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1601) |c_~#stored_elements~0.base| v_ArrVal_1602) |c_~#queue~0.base|) .cse0) 4) |c_~#queue~0.offset|))) (forall ((v_ArrVal_1602 (Array Int Int)) (v_ArrVal_1601 (Array Int Int))) (<= (+ (* (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#id2~0#1.base| v_ArrVal_1601) |c_~#stored_elements~0.base| v_ArrVal_1602) |c_~#queue~0.base|) .cse0) 4) |c_~#queue~0.offset| 4) (select |c_#length| |c_~#queue~0.base|))))) is different from false [2023-12-02 20:46:57,146 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:57,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 33 [2023-12-02 20:46:57,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:57,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2023-12-02 20:46:57,161 INFO L378 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 82 treesize of output 74 [2023-12-02 20:46:57,167 INFO L378 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 38 treesize of output 34 [2023-12-02 20:46:57,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 20:46:57,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2023-12-02 20:46:57,247 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:57,247 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 20:46:57,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:46:57,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-12-02 20:46:58,606 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 67 proven. 47 refuted. 0 times theorem prover too weak. 596 trivial. 11 not checked. [2023-12-02 20:46:58,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218215861] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:46:58,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:46:58,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 8, 9] total 71 [2023-12-02 20:46:58,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309667147] [2023-12-02 20:46:58,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 20:46:58,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2023-12-02 20:46:58,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-02 20:46:58,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2023-12-02 20:46:58,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=705, Invalid=4261, Unknown=8, NotChecked=138, Total=5112 [2023-12-02 20:46:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:46:58,611 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-12-02 20:46:58,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 3.111111111111111) internal successors, (224), 71 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:46:58,612 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2023-12-02 20:46:58,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-12-02 20:46:58,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2023-12-02 20:46:58,613 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-12-02 20:47:03,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:47:03,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:47:03,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 20:47:03,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-12-02 20:47:03,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-12-02 20:47:03,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-02 20:47:03,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-02 20:47:03,702 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting t1Err3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [t1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, t1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2023-12-02 20:47:03,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:47:03,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1267011648, now seen corresponding path program 5 times [2023-12-02 20:47:03,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-02 20:47:03,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485329009] [2023-12-02 20:47:03,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:47:03,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:47:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:47:15,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 814 proven. 360 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2023-12-02 20:47:15,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-02 20:47:15,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485329009] [2023-12-02 20:47:15,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485329009] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:47:15,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367281029] [2023-12-02 20:47:15,138 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-12-02 20:47:15,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:47:15,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 [2023-12-02 20:47:15,139 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:47:15,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89f86d04-c92e-4afc-b7d3-be9c5279a5e2/bin/ugemcutter-verify-Bi2udmvEmx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-02 20:51:58,447 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2023-12-02 20:51:58,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 20:51:58,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 1598 conjuncts, 335 conjunts are in the unsatisfiable core [2023-12-02 20:51:58,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:51:58,588 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-12-02 20:51:58,588 INFO L378 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 [2023-12-02 20:51:58,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-02 20:51:58,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-12-02 20:51:58,803 INFO L378 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 30 treesize of output 21 [2023-12-02 20:51:58,970 INFO L378 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 16 [2023-12-02 20:51:59,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:51:59,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:51:59,312 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2023-12-02 20:51:59,368 INFO L378 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 30 treesize of output 21 [2023-12-02 20:51:59,594 INFO L378 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 26 treesize of output 21 [2023-12-02 20:51:59,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:51:59,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-12-02 20:51:59,945 INFO L378 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 30 treesize of output 21 [2023-12-02 20:51:59,991 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:00,221 INFO L378 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 26 treesize of output 21 [2023-12-02 20:52:00,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:52:00,306 INFO L378 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 16 [2023-12-02 20:52:00,576 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:00,630 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:00,875 INFO L378 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 26 treesize of output 21 [2023-12-02 20:52:00,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:52:00,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-12-02 20:52:01,254 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:01,327 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:01,596 INFO L378 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 26 treesize of output 21 [2023-12-02 20:52:01,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:52:01,696 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2023-12-02 20:52:01,983 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:02,029 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:02,280 INFO L378 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 26 treesize of output 21 [2023-12-02 20:52:02,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:52:02,383 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2023-12-02 20:52:02,713 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:02,767 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:03,064 INFO L378 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 26 treesize of output 21 [2023-12-02 20:52:03,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:52:03,175 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2023-12-02 20:52:03,499 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:03,548 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:03,833 INFO L378 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 26 treesize of output 21 [2023-12-02 20:52:03,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:52:03,946 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2023-12-02 20:52:04,288 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:04,343 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:04,624 INFO L378 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 26 treesize of output 21 [2023-12-02 20:52:04,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:52:04,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2023-12-02 20:52:05,098 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:05,153 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:05,430 INFO L378 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 26 treesize of output 21 [2023-12-02 20:52:05,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 20:52:05,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2023-12-02 20:52:05,942 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:06,002 INFO L378 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 30 treesize of output 21 [2023-12-02 20:52:06,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1515 backedges. 790 proven. 459 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2023-12-02 20:52:06,153 INFO L327 TraceCheckSpWp]: Computing backward predicates...