./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/config/GemCutterReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:07:55,961 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:07:56,150 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2023-11-24 22:07:56,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:07:56,165 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 22:07:56,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:07:56,220 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 22:07:56,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 22:07:56,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:07:56,229 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 22:07:56,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:07:56,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:07:56,232 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 22:07:56,235 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:07:56,236 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:07:56,237 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:07:56,237 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:07:56,238 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:07:56,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:07:56,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:07:56,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:07:56,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:07:56,242 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:07:56,242 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:07:56,243 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:07:56,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:07:56,244 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:07:56,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:07:56,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 22:07:56,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 22:07:56,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 22:07:56,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:07:56,249 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:07:56,249 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:07:56,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:07:56,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 22:07:56,250 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-24 22:07:56,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:07:56,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 22:07:56,251 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 22:07:56,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 22:07:56,252 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:07:56,253 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 22:07:56,253 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 22:07:56,254 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_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d3b4a56bf20a7e5cb147a14169234a27b247cfdef3db9f4b8a4f4a17cd6fe47 [2023-11-24 22:07:56,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:07:56,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:07:56,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:07:56,697 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:07:56,698 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:07:56,700 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/../../sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-24 22:08:00,012 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:08:00,320 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:08:00,321 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/sv-benchmarks/c/weaver/popl20-more-buffer-series2.wvr.c [2023-11-24 22:08:00,333 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/data/8de67374a/08db38a670284be9a902eb87d0adea01/FLAG689d27ab3 [2023-11-24 22:08:00,354 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/data/8de67374a/08db38a670284be9a902eb87d0adea01 [2023-11-24 22:08:00,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:08:00,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:08:00,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:08:00,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:08:00,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:08:00,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c589741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00, skipping insertion in model container [2023-11-24 22:08:00,372 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,415 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:08:00,648 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:08:00,660 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:08:00,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:08:00,710 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:08:00,711 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 22:08:00,724 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:08:00,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00 WrapperNode [2023-11-24 22:08:00,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:08:00,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:08:00,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:08:00,728 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:08:00,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,756 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,798 INFO L138 Inliner]: procedures = 27, calls = 84, calls flagged for inlining = 23, calls inlined = 29, statements flattened = 410 [2023-11-24 22:08:00,799 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:08:00,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:08:00,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:08:00,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:08:00,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,811 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,839 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,846 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:08:00,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:08:00,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:08:00,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:08:00,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (1/1) ... [2023-11-24 22:08:00,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 22:08:00,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:00,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:00,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 22:08:00,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:08:00,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:08:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:08:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:08:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 22:08:00,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 22:08:00,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 22:08:00,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 22:08:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-24 22:08:00,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-24 22:08:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-24 22:08:00,941 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-24 22:08:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:08:00,941 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 22:08:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 22:08:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:08:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:08:00,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:08:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:08:00,947 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 22:08:01,084 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:08:01,086 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:08:01,896 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:08:02,756 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:08:02,756 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-24 22:08:02,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:08:02 BoogieIcfgContainer [2023-11-24 22:08:02,758 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:08:02,762 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 22:08:02,762 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 22:08:02,766 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 22:08:02,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 10:08:00" (1/3) ... [2023-11-24 22:08:02,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fbeb5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:08:02, skipping insertion in model container [2023-11-24 22:08:02,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:08:00" (2/3) ... [2023-11-24 22:08:02,769 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fbeb5d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 10:08:02, skipping insertion in model container [2023-11-24 22:08:02,769 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:08:02" (3/3) ... [2023-11-24 22:08:02,771 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-series2.wvr.c [2023-11-24 22:08:02,783 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 22:08:02,796 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 22:08:02,796 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-24 22:08:02,797 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 22:08:03,010 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-24 22:08:03,076 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:03,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 22:08:03,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:03,084 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 22:08:03,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-24 22:08:03,166 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 22:08:03,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork1 ======== [2023-11-24 22:08:03,189 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@53a12d3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 22:08:03,190 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-24 22:08:04,188 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:04,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:04,193 INFO L85 PathProgramCache]: Analyzing trace with hash -934401939, now seen corresponding path program 1 times [2023-11-24 22:08:04,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:04,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497250454] [2023-11-24 22:08:04,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:04,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:04,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:04,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:04,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:04,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497250454] [2023-11-24 22:08:04,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497250454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:04,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:04,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:08:04,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724157273] [2023-11-24 22:08:04,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:04,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 22:08:04,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:04,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 22:08:04,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 22:08:04,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:04,841 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:04,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 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) [2023-11-24 22:08:04,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:04,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:04,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 22:08:04,975 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:04,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:04,976 INFO L85 PathProgramCache]: Analyzing trace with hash -934400017, now seen corresponding path program 1 times [2023-11-24 22:08:04,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:04,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972675415] [2023-11-24 22:08:04,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:04,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:05,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:05,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:05,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:05,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972675415] [2023-11-24 22:08:05,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972675415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:05,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:05,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 22:08:05,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82560769] [2023-11-24 22:08:05,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:05,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:05,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:05,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:05,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:08:05,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:05,178 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:05,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 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) [2023-11-24 22:08:05,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:05,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:05,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:05,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 22:08:05,458 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:05,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:05,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1098428498, now seen corresponding path program 1 times [2023-11-24 22:08:05,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:05,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779640844] [2023-11-24 22:08:05,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:05,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:05,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:05,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:08:05,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:05,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779640844] [2023-11-24 22:08:05,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779640844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:05,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:05,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:05,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017310571] [2023-11-24 22:08:05,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:05,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:08:05,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:05,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:08:05,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:08:05,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:05,670 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:05,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) 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) [2023-11-24 22:08:05,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:05,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:05,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:06,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:06,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:06,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:06,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 22:08:06,107 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:06,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:06,107 INFO L85 PathProgramCache]: Analyzing trace with hash -66390265, now seen corresponding path program 1 times [2023-11-24 22:08:06,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:06,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103152379] [2023-11-24 22:08:06,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:06,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:06,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:08:06,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:06,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103152379] [2023-11-24 22:08:06,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103152379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:06,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:06,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:06,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45214842] [2023-11-24 22:08:06,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:06,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-24 22:08:06,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:06,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-24 22:08:06,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-24 22:08:06,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:06,329 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:06,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-24 22:08:06,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:06,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:06,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:06,330 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:06,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:06,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:06,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:06,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:06,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 22:08:06,731 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:06,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:06,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1692371195, now seen corresponding path program 1 times [2023-11-24 22:08:06,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:06,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463328186] [2023-11-24 22:08:06,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:06,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:07,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:08:07,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:07,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463328186] [2023-11-24 22:08:07,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463328186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:07,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:07,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 22:08:07,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780133082] [2023-11-24 22:08:07,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:07,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 22:08:07,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:07,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 22:08:07,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-24 22:08:07,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:07,217 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:07,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 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) [2023-11-24 22:08:07,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:07,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:07,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:07,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:07,218 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:07,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:07,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 22:08:07,427 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:07,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:07,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1181639316, now seen corresponding path program 1 times [2023-11-24 22:08:07,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:07,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071231673] [2023-11-24 22:08:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:07,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:07,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:08,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:08:08,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:08,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071231673] [2023-11-24 22:08:08,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071231673] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:08,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489086034] [2023-11-24 22:08:08,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:08,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:08,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:08,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:08,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 22:08:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:08,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-24 22:08:08,903 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:09,114 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 15 treesize of output 1 [2023-11-24 22:08:09,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:09,238 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 [2023-11-24 22:08:09,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:09,350 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 [2023-11-24 22:08:09,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:09,448 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 [2023-11-24 22:08:09,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:09,536 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 [2023-11-24 22:08:09,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:08:09,658 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:09,709 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_177 (Array Int Int))) (< (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_177) c_~f~0.base) (+ c_~f~0.offset (* c_~j~0 4))) 2147483649)) is different from false [2023-11-24 22:08:09,958 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:09,959 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 35 treesize of output 36 [2023-11-24 22:08:09,981 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:09,982 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 4897 treesize of output 4769 [2023-11-24 22:08:10,016 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 141 treesize of output 117 [2023-11-24 22:08:10,025 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 117 treesize of output 111 [2023-11-24 22:08:10,034 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 111 treesize of output 99 [2023-11-24 22:08:10,189 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 142 treesize of output 94 [2023-11-24 22:08:10,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:08:10,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489086034] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:10,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:10,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 20 [2023-11-24 22:08:10,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202302981] [2023-11-24 22:08:10,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:10,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-24 22:08:10,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:10,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-24 22:08:10,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=324, Unknown=13, NotChecked=38, Total=462 [2023-11-24 22:08:10,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:10,397 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:10,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.476190476190476) internal successors, (94), 21 states have internal predecessors, (94), 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) [2023-11-24 22:08:10,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:10,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:10,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:10,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:10,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:10,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:11,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:11,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:11,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:12,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:12,131 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:12,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:12,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1324834973, now seen corresponding path program 1 times [2023-11-24 22:08:12,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:12,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736562836] [2023-11-24 22:08:12,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:12,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:12,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:12,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736562836] [2023-11-24 22:08:12,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736562836] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 22:08:12,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 22:08:12,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 22:08:12,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691286821] [2023-11-24 22:08:12,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 22:08:12,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 22:08:12,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:12,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 22:08:12,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 22:08:12,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:12,320 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:12,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-11-24 22:08:12,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:12,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:12,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:12,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:12,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:12,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:12,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:12,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:12,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:12,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:12,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 22:08:12,466 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:12,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:12,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1324835934, now seen corresponding path program 1 times [2023-11-24 22:08:12,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:12,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936677508] [2023-11-24 22:08:12,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:12,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:12,669 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:12,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:12,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936677508] [2023-11-24 22:08:12,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936677508] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:12,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234255612] [2023-11-24 22:08:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:12,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:12,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:12,673 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:12,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 22:08:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:12,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 22:08:12,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:12,976 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:12,977 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:13,051 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:08:13,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234255612] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:13,052 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:13,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-24 22:08:13,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680012193] [2023-11-24 22:08:13,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:13,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-24 22:08:13,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:13,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-24 22:08:13,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-24 22:08:13,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:13,062 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:13,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 6 states have internal predecessors, (115), 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) [2023-11-24 22:08:13,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:13,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:13,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:13,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:13,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:13,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:13,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:13,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:13,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:13,450 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:13,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:13,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1879730844, now seen corresponding path program 1 times [2023-11-24 22:08:13,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:13,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129632699] [2023-11-24 22:08:13,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:13,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:13,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:13,866 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:08:13,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:13,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129632699] [2023-11-24 22:08:13,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129632699] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:13,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999728433] [2023-11-24 22:08:13,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:13,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:13,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:13,869 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:13,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 22:08:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:14,094 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-24 22:08:14,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:08:14,261 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:14,453 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:08:14,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999728433] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:14,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:14,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-11-24 22:08:14,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744031622] [2023-11-24 22:08:14,454 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:14,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-24 22:08:14,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:14,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-24 22:08:14,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-24 22:08:14,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:14,458 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:14,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 14 states have internal predecessors, (76), 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) [2023-11-24 22:08:14,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:14,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:14,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:14,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:14,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:14,459 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:14,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:14,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:15,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:15,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:15,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:15,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:15,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:15,445 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:15,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:15,445 INFO L85 PathProgramCache]: Analyzing trace with hash -567402353, now seen corresponding path program 2 times [2023-11-24 22:08:15,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:15,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578264932] [2023-11-24 22:08:15,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:15,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:08:15,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:15,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578264932] [2023-11-24 22:08:15,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578264932] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:15,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420768203] [2023-11-24 22:08:15,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-24 22:08:15,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:15,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:15,785 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:15,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 22:08:16,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-24 22:08:16,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:08:16,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 22:08:16,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:16,519 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:08:16,520 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:08:16,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420768203] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:16,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:16,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 19 [2023-11-24 22:08:16,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219645532] [2023-11-24 22:08:16,914 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:16,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-24 22:08:16,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:16,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-24 22:08:16,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2023-11-24 22:08:16,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:16,917 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:16,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.7368421052631575) internal successors, (128), 20 states have internal predecessors, (128), 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) [2023-11-24 22:08:16,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:16,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:16,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:16,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:16,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:16,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:16,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:16,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:16,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:17,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:17,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:17,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:17,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:17,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-24 22:08:17,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:18,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-24 22:08:18,043 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:18,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:18,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1489140311, now seen corresponding path program 3 times [2023-11-24 22:08:18,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:18,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636394226] [2023-11-24 22:08:18,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:18,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-24 22:08:18,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:18,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636394226] [2023-11-24 22:08:18,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636394226] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:18,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449105763] [2023-11-24 22:08:18,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-24 22:08:18,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:18,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:18,576 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:18,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-24 22:08:19,085 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-24 22:08:19,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:08:19,088 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 22:08:19,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:19,332 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-24 22:08:19,332 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-24 22:08:19,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [449105763] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 22:08:19,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 22:08:19,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2023-11-24 22:08:19,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883357182] [2023-11-24 22:08:19,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 22:08:19,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-24 22:08:19,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 22:08:19,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-24 22:08:19,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2023-11-24 22:08:19,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:19,567 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 22:08:19,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.545454545454546) internal successors, (122), 21 states have internal predecessors, (122), 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) [2023-11-24 22:08:19,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:19,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:19,567 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:19,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:19,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:19,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:19,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:19,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:19,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-11-24 22:08:19,568 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:20,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 22:08:20,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-24 22:08:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 22:08:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 22:08:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 22:08:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-24 22:08:20,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-24 22:08:20,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-24 22:08:20,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-24 22:08:20,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:20,521 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-24 22:08:20,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:08:20,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2004337566, now seen corresponding path program 4 times [2023-11-24 22:08:20,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 22:08:20,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097337972] [2023-11-24 22:08:20,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 22:08:20,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:08:20,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:08:23,401 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:08:23,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 22:08:23,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097337972] [2023-11-24 22:08:23,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097337972] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 22:08:23,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983016745] [2023-11-24 22:08:23,401 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-24 22:08:23,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 22:08:23,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 [2023-11-24 22:08:23,405 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 22:08:23,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df5dff21-1dcc-463f-a3a9-979b4c238a23/bin/ugemcutter-verify-oI9GxRtH0S/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-24 22:08:23,655 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-24 22:08:23,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-24 22:08:23,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 56 conjunts are in the unsatisfiable core [2023-11-24 22:08:23,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:08:23,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-24 22:08:23,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,718 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-24 22:08:23,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-24 22:08:23,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-24 22:08:23,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-24 22:08:23,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-11-24 22:08:23,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-24 22:08:23,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-24 22:08:23,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-24 22:08:23,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-24 22:08:23,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-24 22:08:23,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-11-24 22:08:23,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-24 22:08:23,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-24 22:08:23,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:23,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-24 22:08:24,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-24 22:08:24,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-24 22:08:24,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-11-24 22:08:24,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-11-24 22:08:24,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 5 [2023-11-24 22:08:24,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-11-24 22:08:24,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 5 [2023-11-24 22:08:24,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,211 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 5 [2023-11-24 22:08:24,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:24,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1 [2023-11-24 22:08:24,624 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 23 treesize of output 1 [2023-11-24 22:08:24,940 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-24 22:08:24,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-24 22:08:25,074 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 20 treesize of output 15 [2023-11-24 22:08:25,193 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 20 treesize of output 15 [2023-11-24 22:08:25,515 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-11-24 22:08:25,515 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 [2023-11-24 22:08:25,659 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 20 treesize of output 15 [2023-11-24 22:08:25,784 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 20 treesize of output 15 [2023-11-24 22:08:25,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:25,995 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 20 treesize of output 15 [2023-11-24 22:08:26,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,202 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 20 treesize of output 15 [2023-11-24 22:08:26,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,395 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 20 treesize of output 15 [2023-11-24 22:08:26,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 22:08:26,558 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 20 treesize of output 15 [2023-11-24 22:08:27,204 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:08:27,204 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 22:08:27,844 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_524 (Array Int Int)) (v_~q1_back~0_163 Int) (~f~0.offset Int) (~f~0.base Int)) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_524))) (let ((.cse1 (select .cse0 ~f~0.base))) (or (not (= (select (select .cse0 c_~q1~0.base) (+ (* v_~q1_back~0_163 4) c_~q1~0.offset)) (select .cse1 (+ (* c_~i~0 4) 4 ~f~0.offset)))) (< c_~n1~0 (+ v_~q1_back~0_163 1)) (< (select .cse1 (+ (* c_~j~0 4) 4 ~f~0.offset)) 2147483649) (< v_~q1_back~0_163 1))))) is different from false [2023-11-24 22:08:27,922 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_524 (Array Int Int)) (v_ArrVal_523 (Array Int Int)) (v_~q1_back~0_163 Int) (~f~0.offset Int) (~f~0.base Int)) (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_523) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_524))) (let ((.cse0 (select .cse1 ~f~0.base))) (or (< c_~n1~0 (+ v_~q1_back~0_163 1)) (< v_~q1_back~0_163 1) (not (= (select .cse0 (+ (* c_~i~0 4) 4 ~f~0.offset)) (select (select .cse1 c_~q1~0.base) (+ (* v_~q1_back~0_163 4) c_~q1~0.offset)))) (< (select .cse0 (+ (* c_~j~0 4) 4 ~f~0.offset)) 2147483649))))) is different from false [2023-11-24 22:08:28,007 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_524 (Array Int Int)) (v_ArrVal_523 (Array Int Int)) (v_~q1_back~0_163 Int) (~f~0.offset Int) (~f~0.base Int) (v_ArrVal_522 (Array Int Int))) (let ((.cse1 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_522) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_523) |c_ULTIMATE.start_main_~#t4~0#1.base| v_ArrVal_524))) (let ((.cse0 (select .cse1 ~f~0.base))) (or (< c_~n1~0 (+ v_~q1_back~0_163 1)) (< (select .cse0 (+ (* c_~j~0 4) 4 ~f~0.offset)) 2147483649) (< v_~q1_back~0_163 1) (not (= (select .cse0 (+ (* c_~i~0 4) 4 ~f~0.offset)) (select (select .cse1 c_~q1~0.base) (+ (* v_~q1_back~0_163 4) c_~q1~0.offset)))))))) is different from false [2023-11-24 22:08:29,808 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:29,808 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 124 treesize of output 100 [2023-11-24 22:08:30,468 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:08:30,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 113510907 treesize of output 112396865