./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/config/GemCutterReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Overflow-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW --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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-17 22:49:22,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-17 22:49:22,346 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/config/svcomp-Overflow-32bit-GemCutter_Default.epf [2023-11-17 22:49:22,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-17 22:49:22,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-17 22:49:22,403 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-17 22:49:22,404 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-17 22:49:22,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-17 22:49:22,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-17 22:49:22,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-17 22:49:22,413 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-17 22:49:22,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-17 22:49:22,414 INFO L153 SettingsManager]: * Use SBE=true [2023-11-17 22:49:22,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-17 22:49:22,417 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-17 22:49:22,417 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-17 22:49:22,418 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-17 22:49:22,418 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-17 22:49:22,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-17 22:49:22,420 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-17 22:49:22,420 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-17 22:49:22,421 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-17 22:49:22,421 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-17 22:49:22,422 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-17 22:49:22,422 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-17 22:49:22,423 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-17 22:49:22,423 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-17 22:49:22,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-17 22:49:22,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-17 22:49:22,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-17 22:49:22,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:49:22,427 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-17 22:49:22,427 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-17 22:49:22,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-17 22:49:22,428 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-17 22:49:22,428 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2023-11-17 22:49:22,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-17 22:49:22,429 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-17 22:49:22,429 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-17 22:49:22,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-17 22:49:22,430 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-17 22:49:22,430 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-17 22:49:22,431 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-17 22:49:22,431 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_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2023-11-17 22:49:22,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-17 22:49:22,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-17 22:49:22,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-17 22:49:22,841 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-17 22:49:22,842 INFO L274 PluginConnector]: CDTParser initialized [2023-11-17 22:49:22,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/../../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-11-17 22:49:25,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-17 22:49:26,208 INFO L384 CDTParser]: Found 1 translation units. [2023-11-17 22:49:26,209 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-11-17 22:49:26,225 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/data/33917648c/fa0712cfb195407a8f06e2e469e2bbb3/FLAG99a3e1976 [2023-11-17 22:49:26,243 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/data/33917648c/fa0712cfb195407a8f06e2e469e2bbb3 [2023-11-17 22:49:26,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-17 22:49:26,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-17 22:49:26,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-17 22:49:26,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-17 22:49:26,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-17 22:49:26,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@259a5f99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26, skipping insertion in model container [2023-11-17 22:49:26,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,303 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-17 22:49:26,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:49:26,763 INFO L202 MainTranslator]: Completed pre-run [2023-11-17 22:49:26,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-17 22:49:26,876 INFO L206 MainTranslator]: Completed translation [2023-11-17 22:49:26,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26 WrapperNode [2023-11-17 22:49:26,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-17 22:49:26,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-17 22:49:26,880 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-17 22:49:26,880 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-17 22:49:26,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,953 INFO L138 Inliner]: procedures = 165, calls = 36, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 130 [2023-11-17 22:49:26,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-17 22:49:26,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-17 22:49:26,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-17 22:49:26,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-17 22:49:26,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,971 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,979 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,983 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,986 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,988 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:26,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-17 22:49:26,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-17 22:49:26,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-17 22:49:26,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-17 22:49:26,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (1/1) ... [2023-11-17 22:49:27,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-17 22:49:27,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:49:27,030 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-17 22:49:27,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-17 22:49:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-17 22:49:27,076 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2023-11-17 22:49:27,076 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2023-11-17 22:49:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-17 22:49:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-17 22:49:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-17 22:49:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-17 22:49:27,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-17 22:49:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-17 22:49:27,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-17 22:49:27,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-17 22:49:27,080 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-17 22:49:27,228 INFO L236 CfgBuilder]: Building ICFG [2023-11-17 22:49:27,231 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-17 22:49:27,493 INFO L277 CfgBuilder]: Performing block encoding [2023-11-17 22:49:27,505 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-17 22:49:27,505 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-17 22:49:27,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:49:27 BoogieIcfgContainer [2023-11-17 22:49:27,510 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-17 22:49:27,513 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-17 22:49:27,514 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-17 22:49:27,518 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-17 22:49:27,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 10:49:26" (1/3) ... [2023-11-17 22:49:27,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40efce03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:49:27, skipping insertion in model container [2023-11-17 22:49:27,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 10:49:26" (2/3) ... [2023-11-17 22:49:27,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40efce03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 10:49:27, skipping insertion in model container [2023-11-17 22:49:27,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 10:49:27" (3/3) ... [2023-11-17 22:49:27,522 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2023-11-17 22:49:27,531 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-17 22:49:27,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-17 22:49:27,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-17 22:49:27,563 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-17 22:49:27,714 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-17 22:49:27,775 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:49:27,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-17 22:49:27,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:49:27,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-17 22:49:27,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-17 22:49:27,832 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-17 22:49:27,847 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == workerThread1of1ForFork0 ======== [2023-11-17 22:49:27,854 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;@6233885d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-17 22:49:27,854 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-17 22:49:28,172 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:28,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:28,179 INFO L85 PathProgramCache]: Analyzing trace with hash 387973650, now seen corresponding path program 1 times [2023-11-17 22:49:28,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:28,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493229174] [2023-11-17 22:49:28,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:28,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:28,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:28,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:28,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493229174] [2023-11-17 22:49:28,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493229174] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:49:28,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:49:28,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-17 22:49:28,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739962275] [2023-11-17 22:49:28,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:49:28,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-17 22:49:28,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:28,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-17 22:49:28,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-17 22:49:28,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:28,613 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:28,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 41.5) internal successors, (83), 2 states have internal predecessors, (83), 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) [2023-11-17 22:49:28,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:28,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:28,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-17 22:49:28,687 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:28,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:28,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1609600475, now seen corresponding path program 1 times [2023-11-17 22:49:28,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:28,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909887787] [2023-11-17 22:49:28,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:28,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:29,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:29,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:29,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909887787] [2023-11-17 22:49:29,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909887787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:49:29,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:49:29,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-17 22:49:29,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247497332] [2023-11-17 22:49:29,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:49:29,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:49:29,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:29,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:49:29,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:49:29,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:29,131 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:29,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.8) internal successors, (79), 6 states have internal predecessors, (79), 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) [2023-11-17 22:49:29,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:29,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:29,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:29,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:49:29,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-17 22:49:29,347 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:29,348 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:29,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1641992357, now seen corresponding path program 1 times [2023-11-17 22:49:29,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:29,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594250676] [2023-11-17 22:49:29,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:29,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:30,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:30,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:30,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594250676] [2023-11-17 22:49:30,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594250676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:49:30,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:49:30,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-17 22:49:30,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132398703] [2023-11-17 22:49:30,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:49:30,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 22:49:30,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:30,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 22:49:30,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-11-17 22:49:30,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:30,177 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:30,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 13 states have internal predecessors, (80), 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) [2023-11-17 22:49:30,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:30,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:49:30,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:30,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:30,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:49:30,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:30,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-17 22:49:30,762 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:30,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:30,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1848808787, now seen corresponding path program 1 times [2023-11-17 22:49:30,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:30,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474686777] [2023-11-17 22:49:30,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:30,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:30,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:30,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:30,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474686777] [2023-11-17 22:49:30,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474686777] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:49:30,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:49:30,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-17 22:49:30,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418023335] [2023-11-17 22:49:30,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:49:30,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:49:30,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:30,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:49:30,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-17 22:49:30,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:30,949 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:30,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 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) [2023-11-17 22:49:30,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:30,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:49:30,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:30,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:31,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:49:31,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:31,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:31,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-17 22:49:31,149 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:31,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:31,150 INFO L85 PathProgramCache]: Analyzing trace with hash 70339861, now seen corresponding path program 1 times [2023-11-17 22:49:31,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:31,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935030959] [2023-11-17 22:49:31,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:31,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:31,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:31,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:31,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935030959] [2023-11-17 22:49:31,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935030959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:49:31,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:49:31,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-17 22:49:31,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704134757] [2023-11-17 22:49:31,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:49:31,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-17 22:49:31,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:31,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-17 22:49:31,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-17 22:49:31,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:31,305 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:31,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-17 22:49:31,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:31,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:49:31,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:31,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:31,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:31,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:31,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:49:31,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:31,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:31,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:31,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-17 22:49:31,392 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:31,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:31,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1195191248, now seen corresponding path program 1 times [2023-11-17 22:49:31,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:31,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712872195] [2023-11-17 22:49:31,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:31,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:31,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:31,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712872195] [2023-11-17 22:49:31,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712872195] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:49:31,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:49:31,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-17 22:49:31,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774767957] [2023-11-17 22:49:31,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:49:31,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-17 22:49:31,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:31,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-17 22:49:31,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-17 22:49:31,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:31,974 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:31,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.727272727272727) internal successors, (96), 12 states have internal predecessors, (96), 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) [2023-11-17 22:49:31,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:31,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-11-17 22:49:31,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:31,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:31,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:31,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:32,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:32,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:32,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:32,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:32,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:32,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:32,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-17 22:49:32,733 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:32,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:32,734 INFO L85 PathProgramCache]: Analyzing trace with hash -440692456, now seen corresponding path program 1 times [2023-11-17 22:49:32,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:32,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787723857] [2023-11-17 22:49:32,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:32,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:33,659 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:33,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:33,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787723857] [2023-11-17 22:49:33,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787723857] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:49:33,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828926433] [2023-11-17 22:49:33,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:33,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:49:33,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:49:33,693 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:49:33,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-17 22:49:33,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:33,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-17 22:49:33,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:49:34,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-17 22:49:34,252 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 22:49:34,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:49:34,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 12 [2023-11-17 22:49:34,415 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 22:49:34,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828926433] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-17 22:49:34,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-11-17 22:49:34,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15, 8] total 26 [2023-11-17 22:49:34,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612066688] [2023-11-17 22:49:34,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:49:34,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-17 22:49:34,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:34,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-17 22:49:34,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=584, Unknown=0, NotChecked=0, Total=650 [2023-11-17 22:49:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:34,420 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:34,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.714285714285715) internal successors, (145), 7 states have internal predecessors, (145), 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) [2023-11-17 22:49:34,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:34,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:34,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:34,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:34,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:34,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:34,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:34,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:34,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:34,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:34,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:34,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:34,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:34,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:34,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-17 22:49:35,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-17 22:49:35,000 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:35,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:35,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1757576858, now seen corresponding path program 1 times [2023-11-17 22:49:35,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:35,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631421037] [2023-11-17 22:49:35,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:35,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:35,232 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 26 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:35,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:35,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631421037] [2023-11-17 22:49:35,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631421037] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:49:35,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026341437] [2023-11-17 22:49:35,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:35,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:49:35,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:49:35,235 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:49:35,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-17 22:49:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:35,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-17 22:49:35,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:49:35,570 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:35,570 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:49:35,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026341437] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:49:35,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 22:49:35,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2023-11-17 22:49:35,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221524016] [2023-11-17 22:49:35,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:49:35,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-17 22:49:35,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:35,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-17 22:49:35,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-17 22:49:35,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:35,574 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:35,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 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) [2023-11-17 22:49:35,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:35,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:35,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:35,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:35,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:35,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:35,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:35,576 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:35,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:35,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:35,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:35,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-17 22:49:35,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:49:35,909 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:35,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:35,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1773938961, now seen corresponding path program 1 times [2023-11-17 22:49:35,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:35,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994492368] [2023-11-17 22:49:35,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:35,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:36,143 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:36,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:36,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994492368] [2023-11-17 22:49:36,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994492368] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:49:36,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408159870] [2023-11-17 22:49:36,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:36,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:49:36,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:49:36,146 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:49:36,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-17 22:49:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:36,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-17 22:49:36,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:49:36,448 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:36,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:49:36,623 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 26 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:36,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408159870] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:49:36,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:49:36,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-17 22:49:36,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883657096] [2023-11-17 22:49:36,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:49:36,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-17 22:49:36,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:36,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-17 22:49:36,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-11-17 22:49:36,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:36,628 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:36,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 24.25) internal successors, (291), 12 states have internal predecessors, (291), 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) [2023-11-17 22:49:36,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:36,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:36,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:36,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:36,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:36,629 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:36,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:36,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:36,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:36,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:36,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:36,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:36,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:36,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:49:36,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-17 22:49:37,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-17 22:49:37,087 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:37,088 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:37,088 INFO L85 PathProgramCache]: Analyzing trace with hash -140190415, now seen corresponding path program 2 times [2023-11-17 22:49:37,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:37,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844939087] [2023-11-17 22:49:37,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:37,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:37,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:37,781 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 118 proven. 335 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-17 22:49:37,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:37,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844939087] [2023-11-17 22:49:37,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844939087] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:49:37,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718308563] [2023-11-17 22:49:37,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-17 22:49:37,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:49:37,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:49:37,784 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:49:37,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-17 22:49:38,039 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-17 22:49:38,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:49:38,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-17 22:49:38,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:49:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 118 proven. 335 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-17 22:49:38,380 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:49:38,881 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 118 proven. 335 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-17 22:49:38,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718308563] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:49:38,882 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:49:38,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-11-17 22:49:38,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667658588] [2023-11-17 22:49:38,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:49:38,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-17 22:49:38,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:38,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-17 22:49:38,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-11-17 22:49:38,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:38,890 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:38,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 23.625) internal successors, (567), 24 states have internal predecessors, (567), 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) [2023-11-17 22:49:38,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:38,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:38,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:38,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:38,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:38,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:38,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:38,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:38,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:49:38,892 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:39,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:39,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:39,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:39,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:39,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:39,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:49:39,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-17 22:49:39,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-17 22:49:39,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-17 22:49:39,787 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:39,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:39,788 INFO L85 PathProgramCache]: Analyzing trace with hash 882867580, now seen corresponding path program 3 times [2023-11-17 22:49:39,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:39,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183380146] [2023-11-17 22:49:39,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:39,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:41,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2286 backedges. 283 proven. 1985 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-17 22:49:41,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:41,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183380146] [2023-11-17 22:49:41,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183380146] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:49:41,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874919637] [2023-11-17 22:49:41,964 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-17 22:49:41,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:49:41,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:49:41,966 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:49:41,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-17 22:49:42,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-17 22:49:42,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:49:42,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-17 22:49:42,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:49:43,341 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 [2023-11-17 22:49:43,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-17 22:49:43,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2286 backedges. 457 proven. 144 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2023-11-17 22:49:43,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:49:43,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2023-11-17 22:49:44,158 INFO L134 CoverageAnalysis]: Checked inductivity of 2286 backedges. 577 proven. 24 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2023-11-17 22:49:44,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874919637] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:49:44,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:49:44,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 10, 9] total 41 [2023-11-17 22:49:44,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961384589] [2023-11-17 22:49:44,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:49:44,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-11-17 22:49:44,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:44,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-11-17 22:49:44,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=205, Invalid=1435, Unknown=0, NotChecked=0, Total=1640 [2023-11-17 22:49:44,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:44,170 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:44,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 22.78048780487805) internal successors, (934), 41 states have internal predecessors, (934), 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) [2023-11-17 22:49:44,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:44,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:44,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:44,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:44,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:44,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:44,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:44,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:44,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:49:44,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-11-17 22:49:44,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:48,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:49:48,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-17 22:49:48,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2023-11-17 22:49:48,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-17 22:49:48,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-17 22:49:48,779 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:48,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:48,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1313370084, now seen corresponding path program 4 times [2023-11-17 22:49:48,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:48,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215063783] [2023-11-17 22:49:48,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:48,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:50,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2603 backedges. 156 proven. 2447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:50,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:50,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215063783] [2023-11-17 22:49:50,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215063783] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:49:50,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734004229] [2023-11-17 22:49:50,892 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-17 22:49:50,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:49:50,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:49:50,895 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:49:50,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-17 22:49:51,228 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-17 22:49:51,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-17 22:49:51,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-17 22:49:51,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:49:51,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-17 22:49:51,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2603 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 2489 trivial. 0 not checked. [2023-11-17 22:49:51,507 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-17 22:49:51,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734004229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:49:51,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-17 22:49:51,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [26] total 32 [2023-11-17 22:49:51,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715848492] [2023-11-17 22:49:51,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:49:51,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-17 22:49:51,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:51,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-17 22:49:51,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=796, Unknown=0, NotChecked=0, Total=992 [2023-11-17 22:49:51,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:51,517 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:51,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 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) [2023-11-17 22:49:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:51,518 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:51,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:51,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-11-17 22:49:51,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:51,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:51,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:49:51,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-11-17 22:49:51,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2023-11-17 22:49:51,520 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:51,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:51,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:51,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:51,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:51,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-17 22:49:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:49:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-17 22:49:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2023-11-17 22:49:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:51,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-17 22:49:52,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:49:52,180 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:52,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:52,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1351779765, now seen corresponding path program 1 times [2023-11-17 22:49:52,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:52,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895733842] [2023-11-17 22:49:52,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:52,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:52,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:52,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:52,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:52,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895733842] [2023-11-17 22:49:52,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895733842] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-17 22:49:52,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-17 22:49:52,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-17 22:49:52,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925004505] [2023-11-17 22:49:52,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-17 22:49:52,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-17 22:49:52,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:52,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-17 22:49:52,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-17 22:49:52,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:52,572 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:52,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 13 states have internal predecessors, (72), 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) [2023-11-17 22:49:52,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:52,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:52,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:52,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:52,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:52,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-11-17 22:49:52,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:52,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:52,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:49:52,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-11-17 22:49:52,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2023-11-17 22:49:52,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:52,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:53,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:53,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:53,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:53,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:53,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:53,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-17 22:49:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:49:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-11-17 22:49:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-11-17 22:49:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:53,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-17 22:49:53,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-17 22:49:53,195 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-17 22:49:53,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-17 22:49:53,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1460265216, now seen corresponding path program 1 times [2023-11-17 22:49:53,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-17 22:49:53,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987497356] [2023-11-17 22:49:53,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:53,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-17 22:49:53,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:53,782 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 60 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-17 22:49:53,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-17 22:49:53,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987497356] [2023-11-17 22:49:53,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987497356] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-17 22:49:53,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796104731] [2023-11-17 22:49:53,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-17 22:49:53,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-17 22:49:53,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 [2023-11-17 22:49:53,784 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-17 22:49:53,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_607ce4a4-2983-4aa8-9c0c-64f805b26385/bin/ugemcutter-verify-ztSkJzofpW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-17 22:49:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-17 22:49:53,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-17 22:49:53,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-17 22:49:54,387 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 [2023-11-17 22:49:54,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2023-11-17 22:49:54,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-17 22:49:54,954 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:54,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-17 22:49:55,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2023-11-17 22:49:55,821 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-17 22:49:55,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796104731] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-17 22:49:55,822 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-17 22:49:55,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 14] total 35 [2023-11-17 22:49:55,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290308076] [2023-11-17 22:49:55,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-17 22:49:55,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-11-17 22:49:55,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-17 22:49:55,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-11-17 22:49:55,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=1113, Unknown=0, NotChecked=0, Total=1260 [2023-11-17 22:49:55,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:55,827 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-17 22:49:55,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 12.8) internal successors, (448), 36 states have internal predecessors, (448), 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) [2023-11-17 22:49:55,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-17 22:49:55,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:55,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:55,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-11-17 22:49:55,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-11-17 22:49:55,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2023-11-17 22:49:55,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-11-17 22:49:55,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:55,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2023-11-17 22:49:55,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2023-11-17 22:49:55,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2023-11-17 22:49:55,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-11-17 22:49:55,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-11-17 22:49:55,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.