./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05d860f4c0b8d355d8344160864c48286246164c4c6e8e3a08816fe000adfcec --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:58:36,453 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:58:36,573 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-08 18:58:36,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:58:36,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:58:36,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:58:36,616 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:58:36,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:58:36,617 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:58:36,618 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:58:36,619 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:58:36,619 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:58:36,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:58:36,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:58:36,622 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:58:36,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:58:36,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:58:36,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:58:36,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:58:36,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:58:36,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:58:36,627 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:58:36,627 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:58:36,628 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:58:36,628 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:58:36,629 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:58:36,630 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:58:36,630 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:58:36,631 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:58:36,632 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:58:36,632 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:58:36,633 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:58:36,633 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:58:36,634 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:58:36,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:58:36,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:58:36,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:58:36,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:58:36,636 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:58:36,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:58:36,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:58:36,639 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:58:36,643 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:58:36,643 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:58:36,644 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05d860f4c0b8d355d8344160864c48286246164c4c6e8e3a08816fe000adfcec [2024-11-08 18:58:37,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:58:37,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:58:37,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:58:37,134 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:58:37,135 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:58:37,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c Unable to find full path for "g++" [2024-11-08 18:58:39,831 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:58:40,087 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:58:40,088 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound1.c [2024-11-08 18:58:40,098 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/data/2d7eb0dff/5f53edbd5d334ac6b803459584051a9e/FLAGe178e92fa [2024-11-08 18:58:40,118 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/data/2d7eb0dff/5f53edbd5d334ac6b803459584051a9e [2024-11-08 18:58:40,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:58:40,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:58:40,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:58:40,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:58:40,136 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:58:40,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b3b780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40, skipping insertion in model container [2024-11-08 18:58:40,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,171 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:58:40,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:58:40,462 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:58:40,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:58:40,513 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:58:40,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40 WrapperNode [2024-11-08 18:58:40,514 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:58:40,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:58:40,516 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:58:40,516 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:58:40,528 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,539 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,566 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-11-08 18:58:40,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:58:40,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:58:40,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:58:40,569 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:58:40,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,594 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,629 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:58:40,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,634 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,640 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,641 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,645 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:58:40,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:58:40,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:58:40,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:58:40,649 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (1/1) ... [2024-11-08 18:58:40,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:58:40,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:40,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:58:40,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:58:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:58:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:58:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:58:40,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:58:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-08 18:58:40,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-08 18:58:40,852 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:58:40,855 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:58:41,267 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2024-11-08 18:58:41,267 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:58:41,294 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:58:41,296 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:58:41,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:58:41 BoogieIcfgContainer [2024-11-08 18:58:41,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:58:41,304 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:58:41,306 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:58:41,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:58:41,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:58:40" (1/3) ... [2024-11-08 18:58:41,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ce75f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:58:41, skipping insertion in model container [2024-11-08 18:58:41,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:58:40" (2/3) ... [2024-11-08 18:58:41,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ce75f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:58:41, skipping insertion in model container [2024-11-08 18:58:41,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:58:41" (3/3) ... [2024-11-08 18:58:41,320 INFO L112 eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound1.c [2024-11-08 18:58:41,341 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:58:41,341 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-08 18:58:41,454 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:58:41,464 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, 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;@168ecea7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:58:41,465 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-08 18:58:41,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 62 states, 36 states have (on average 1.75) internal successors, (63), 58 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:58:41,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-08 18:58:41,493 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:41,493 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-08 18:58:41,495 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:41,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:41,506 INFO L85 PathProgramCache]: Analyzing trace with hash 889508872, now seen corresponding path program 1 times [2024-11-08 18:58:41,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:41,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879525584] [2024-11-08 18:58:41,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:41,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:41,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:41,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:41,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879525584] [2024-11-08 18:58:41,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879525584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:41,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:41,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:58:41,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381708934] [2024-11-08 18:58:41,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:41,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:58:41,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:41,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:58:41,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:58:41,761 INFO L87 Difference]: Start difference. First operand has 62 states, 36 states have (on average 1.75) internal successors, (63), 58 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-08 18:58:41,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:41,793 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2024-11-08 18:58:41,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:58:41,795 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2024-11-08 18:58:41,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:41,804 INFO L225 Difference]: With dead ends: 118 [2024-11-08 18:58:41,804 INFO L226 Difference]: Without dead ends: 53 [2024-11-08 18:58:41,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:58:41,814 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:41,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:58:41,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-08 18:58:41,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-08 18:58:41,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 50 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:58:41,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2024-11-08 18:58:41,869 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 6 [2024-11-08 18:58:41,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:41,870 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2024-11-08 18:58:41,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-08 18:58:41,871 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2024-11-08 18:58:41,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 18:58:41,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:41,873 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:41,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:58:41,874 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:41,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:41,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1806818349, now seen corresponding path program 1 times [2024-11-08 18:58:41,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:41,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124183211] [2024-11-08 18:58:41,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:41,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:58:41,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1203049211] [2024-11-08 18:58:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:41,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:41,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:41,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:41,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:58:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:42,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:58:42,040 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:42,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:42,094 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:58:42,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:42,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124183211] [2024-11-08 18:58:42,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 18:58:42,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1203049211] [2024-11-08 18:58:42,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1203049211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:42,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:42,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:58:42,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656206878] [2024-11-08 18:58:42,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:42,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:58:42,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:42,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:58:42,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:58:42,103 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-11-08 18:58:42,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:42,264 INFO L93 Difference]: Finished difference Result 86 states and 95 transitions. [2024-11-08 18:58:42,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:58:42,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) Word has length 7 [2024-11-08 18:58:42,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:42,270 INFO L225 Difference]: With dead ends: 86 [2024-11-08 18:58:42,271 INFO L226 Difference]: Without dead ends: 82 [2024-11-08 18:58:42,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:58:42,276 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 25 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:42,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 54 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:58:42,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-08 18:58:42,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 70. [2024-11-08 18:58:42,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.6170212765957446) internal successors, (76), 66 states have internal predecessors, (76), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:58:42,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2024-11-08 18:58:42,300 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 7 [2024-11-08 18:58:42,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:42,301 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2024-11-08 18:58:42,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2024-11-08 18:58:42,302 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2024-11-08 18:58:42,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 18:58:42,305 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:42,306 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:42,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:58:42,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-08 18:58:42,507 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:42,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:42,509 INFO L85 PathProgramCache]: Analyzing trace with hash 176794024, now seen corresponding path program 1 times [2024-11-08 18:58:42,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:42,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915011194] [2024-11-08 18:58:42,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:42,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:42,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:42,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:42,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915011194] [2024-11-08 18:58:42,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915011194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:42,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:42,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:58:42,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811424100] [2024-11-08 18:58:42,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:42,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:58:42,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:42,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:58:42,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:58:42,751 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-08 18:58:42,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:42,926 INFO L93 Difference]: Finished difference Result 88 states and 95 transitions. [2024-11-08 18:58:42,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:58:42,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) Word has length 8 [2024-11-08 18:58:42,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:42,929 INFO L225 Difference]: With dead ends: 88 [2024-11-08 18:58:42,929 INFO L226 Difference]: Without dead ends: 80 [2024-11-08 18:58:42,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:58:42,932 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 22 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:42,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 58 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:58:42,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-08 18:58:42,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 75. [2024-11-08 18:58:42,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 52 states have (on average 1.5) internal successors, (78), 71 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:58:42,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2024-11-08 18:58:42,949 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 8 [2024-11-08 18:58:42,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:42,949 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2024-11-08 18:58:42,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2024-11-08 18:58:42,950 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2024-11-08 18:58:42,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:58:42,950 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:42,951 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:42,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:58:42,952 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:42,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:42,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1240918769, now seen corresponding path program 1 times [2024-11-08 18:58:42,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:42,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157504181] [2024-11-08 18:58:42,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:42,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:43,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:43,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157504181] [2024-11-08 18:58:43,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157504181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:43,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:43,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:58:43,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620342847] [2024-11-08 18:58:43,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:43,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:58:43,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:43,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:58:43,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:58:43,150 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-08 18:58:43,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:43,341 INFO L93 Difference]: Finished difference Result 84 states and 87 transitions. [2024-11-08 18:58:43,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:58:43,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) Word has length 11 [2024-11-08 18:58:43,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:43,343 INFO L225 Difference]: With dead ends: 84 [2024-11-08 18:58:43,343 INFO L226 Difference]: Without dead ends: 72 [2024-11-08 18:58:43,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:58:43,350 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 38 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:43,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 56 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:58:43,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-08 18:58:43,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2024-11-08 18:58:43,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.488888888888889) internal successors, (67), 64 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:58:43,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2024-11-08 18:58:43,374 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 11 [2024-11-08 18:58:43,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:43,374 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2024-11-08 18:58:43,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-11-08 18:58:43,375 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2024-11-08 18:58:43,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 18:58:43,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:43,380 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:43,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:58:43,382 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:43,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:43,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1483154992, now seen corresponding path program 1 times [2024-11-08 18:58:43,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:43,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418455226] [2024-11-08 18:58:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:43,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:43,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 18:58:43,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:43,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:43,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418455226] [2024-11-08 18:58:43,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418455226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:43,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:43,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:58:43,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493955533] [2024-11-08 18:58:43,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:43,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:58:43,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:43,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:58:43,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:58:43,584 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:58:43,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:43,618 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2024-11-08 18:58:43,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:58:43,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-11-08 18:58:43,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:43,621 INFO L225 Difference]: With dead ends: 70 [2024-11-08 18:58:43,621 INFO L226 Difference]: Without dead ends: 68 [2024-11-08 18:58:43,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:58:43,624 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:43,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 95 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:58:43,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-11-08 18:58:43,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-11-08 18:58:43,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 64 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:58:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2024-11-08 18:58:43,644 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 20 [2024-11-08 18:58:43,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:43,646 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2024-11-08 18:58:43,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:58:43,646 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2024-11-08 18:58:43,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 18:58:43,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:43,648 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:43,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:58:43,648 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:43,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:43,649 INFO L85 PathProgramCache]: Analyzing trace with hash 421118996, now seen corresponding path program 1 times [2024-11-08 18:58:43,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:43,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405449894] [2024-11-08 18:58:43,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:43,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:43,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:43,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 18:58:43,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:43,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:43,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405449894] [2024-11-08 18:58:43,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405449894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:43,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:43,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:58:43,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165233894] [2024-11-08 18:58:43,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:43,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:58:43,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:58:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:58:43,899 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:58:44,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:44,091 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2024-11-08 18:58:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:58:44,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-08 18:58:44,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:44,094 INFO L225 Difference]: With dead ends: 71 [2024-11-08 18:58:44,094 INFO L226 Difference]: Without dead ends: 70 [2024-11-08 18:58:44,094 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:58:44,096 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 1 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:44,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 67 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:58:44,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-08 18:58:44,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2024-11-08 18:58:44,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 46 states have (on average 1.434782608695652) internal successors, (66), 65 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:58:44,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2024-11-08 18:58:44,125 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 24 [2024-11-08 18:58:44,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:44,126 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2024-11-08 18:58:44,126 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:58:44,127 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2024-11-08 18:58:44,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 18:58:44,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:44,128 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:44,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:58:44,129 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:44,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:44,130 INFO L85 PathProgramCache]: Analyzing trace with hash 169787069, now seen corresponding path program 1 times [2024-11-08 18:58:44,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:44,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61339478] [2024-11-08 18:58:44,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:44,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:44,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 18:58:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:44,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:44,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:44,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61339478] [2024-11-08 18:58:44,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61339478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:44,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:58:44,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:58:44,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69723455] [2024-11-08 18:58:44,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:44,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:58:44,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:44,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:58:44,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:58:44,336 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:58:44,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:44,510 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2024-11-08 18:58:44,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:58:44,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-08 18:58:44,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:44,512 INFO L225 Difference]: With dead ends: 71 [2024-11-08 18:58:44,513 INFO L226 Difference]: Without dead ends: 70 [2024-11-08 18:58:44,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:58:44,514 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:44,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:58:44,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-08 18:58:44,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-08 18:58:44,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 47 states have (on average 1.425531914893617) internal successors, (67), 66 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:58:44,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2024-11-08 18:58:44,534 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 25 [2024-11-08 18:58:44,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:44,535 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2024-11-08 18:58:44,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:58:44,535 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2024-11-08 18:58:44,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 18:58:44,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:44,537 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:44,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:58:44,538 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:44,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:44,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1344855372, now seen corresponding path program 1 times [2024-11-08 18:58:44,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:44,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923980537] [2024-11-08 18:58:44,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:44,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 18:58:44,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1393763597] [2024-11-08 18:58:44,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:44,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:44,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:44,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:44,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:58:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:44,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:58:44,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:44,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:44,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:45,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:45,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:45,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923980537] [2024-11-08 18:58:45,004 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-08 18:58:45,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393763597] [2024-11-08 18:58:45,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393763597] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:58:45,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:58:45,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-08 18:58:45,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435421669] [2024-11-08 18:58:45,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 18:58:45,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:58:45,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:45,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:58:45,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:58:45,008 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:58:45,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:45,314 INFO L93 Difference]: Finished difference Result 136 states and 167 transitions. [2024-11-08 18:58:45,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:58:45,315 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2024-11-08 18:58:45,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:45,316 INFO L225 Difference]: With dead ends: 136 [2024-11-08 18:58:45,316 INFO L226 Difference]: Without dead ends: 132 [2024-11-08 18:58:45,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:58:45,320 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 116 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:45,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 93 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:58:45,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-08 18:58:45,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 104. [2024-11-08 18:58:45,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 82 states have (on average 1.475609756097561) internal successors, (121), 98 states have internal predecessors, (121), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-08 18:58:45,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 129 transitions. [2024-11-08 18:58:45,345 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 129 transitions. Word has length 28 [2024-11-08 18:58:45,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:45,350 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 129 transitions. [2024-11-08 18:58:45,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:58:45,350 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 129 transitions. [2024-11-08 18:58:45,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 18:58:45,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:45,351 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:45,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:58:45,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-08 18:58:45,557 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:45,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:45,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1259156481, now seen corresponding path program 1 times [2024-11-08 18:58:45,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:45,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109180061] [2024-11-08 18:58:45,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:45,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:45,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 18:58:45,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:45,761 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:45,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:45,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109180061] [2024-11-08 18:58:45,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109180061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:45,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948974981] [2024-11-08 18:58:45,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:45,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:45,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:45,765 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:45,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:58:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:45,835 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:58:45,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:46,082 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:46,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:46,226 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:46,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948974981] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:58:46,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:58:46,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 18:58:46,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193482962] [2024-11-08 18:58:46,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:58:46,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:58:46,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:46,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:58:46,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:58:46,229 INFO L87 Difference]: Start difference. First operand 104 states and 129 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:58:46,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:46,465 INFO L93 Difference]: Finished difference Result 104 states and 129 transitions. [2024-11-08 18:58:46,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:58:46,466 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 29 [2024-11-08 18:58:46,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:46,468 INFO L225 Difference]: With dead ends: 104 [2024-11-08 18:58:46,468 INFO L226 Difference]: Without dead ends: 101 [2024-11-08 18:58:46,468 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:58:46,469 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 66 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:46,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 76 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:58:46,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-08 18:58:46,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-08 18:58:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 82 states have (on average 1.3902439024390243) internal successors, (114), 95 states have internal predecessors, (114), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-08 18:58:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 122 transitions. [2024-11-08 18:58:46,481 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 122 transitions. Word has length 29 [2024-11-08 18:58:46,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:46,482 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 122 transitions. [2024-11-08 18:58:46,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:58:46,483 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 122 transitions. [2024-11-08 18:58:46,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 18:58:46,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:46,484 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:46,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 18:58:46,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:46,689 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:46,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:46,689 INFO L85 PathProgramCache]: Analyzing trace with hash 379145302, now seen corresponding path program 1 times [2024-11-08 18:58:46,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:46,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792969902] [2024-11-08 18:58:46,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:46,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:46,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 18:58:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:46,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:46,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792969902] [2024-11-08 18:58:46,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792969902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:46,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069613879] [2024-11-08 18:58:46,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:46,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:46,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:46,838 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:46,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:58:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:46,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 18:58:46,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:47,072 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:47,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:47,204 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:47,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069613879] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:58:47,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:58:47,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-08 18:58:47,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134689194] [2024-11-08 18:58:47,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:58:47,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:58:47,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:47,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:58:47,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:58:47,208 INFO L87 Difference]: Start difference. First operand 101 states and 122 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 10 states have internal predecessors, (67), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:58:47,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:47,503 INFO L93 Difference]: Finished difference Result 113 states and 134 transitions. [2024-11-08 18:58:47,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:58:47,504 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 10 states have internal predecessors, (67), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2024-11-08 18:58:47,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:47,506 INFO L225 Difference]: With dead ends: 113 [2024-11-08 18:58:47,506 INFO L226 Difference]: Without dead ends: 106 [2024-11-08 18:58:47,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=72, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:58:47,507 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 73 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:47,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 88 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:58:47,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-08 18:58:47,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 96. [2024-11-08 18:58:47,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 82 states have (on average 1.2439024390243902) internal successors, (102), 90 states have internal predecessors, (102), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-08 18:58:47,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2024-11-08 18:58:47,519 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 30 [2024-11-08 18:58:47,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:47,520 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2024-11-08 18:58:47,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 10 states have internal predecessors, (67), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:58:47,520 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2024-11-08 18:58:47,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-08 18:58:47,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:47,522 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:47,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:58:47,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:47,723 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:47,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:47,724 INFO L85 PathProgramCache]: Analyzing trace with hash -713583112, now seen corresponding path program 1 times [2024-11-08 18:58:47,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:47,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938907399] [2024-11-08 18:58:47,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:47,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:47,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 18:58:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:47,918 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:47,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:47,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938907399] [2024-11-08 18:58:47,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938907399] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:47,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548182530] [2024-11-08 18:58:47,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:47,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:47,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:47,922 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:47,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:58:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:47,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 18:58:47,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:58:48,251 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:58:48,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548182530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:48,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:58:48,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-08 18:58:48,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215203036] [2024-11-08 18:58:48,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:48,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:58:48,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:48,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:58:48,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:58:48,254 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:58:48,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:48,379 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2024-11-08 18:58:48,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:58:48,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-08 18:58:48,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:48,381 INFO L225 Difference]: With dead ends: 96 [2024-11-08 18:58:48,381 INFO L226 Difference]: Without dead ends: 84 [2024-11-08 18:58:48,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:58:48,383 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 27 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:48,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 42 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:58:48,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-08 18:58:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2024-11-08 18:58:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 74 states have (on average 1.135135135135135) internal successors, (84), 78 states have internal predecessors, (84), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-08 18:58:48,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2024-11-08 18:58:48,399 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 32 [2024-11-08 18:58:48,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:48,400 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2024-11-08 18:58:48,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:58:48,400 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2024-11-08 18:58:48,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 18:58:48,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:48,404 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:48,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 18:58:48,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:48,605 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:48,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:48,606 INFO L85 PathProgramCache]: Analyzing trace with hash -928340311, now seen corresponding path program 1 times [2024-11-08 18:58:48,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:48,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197369360] [2024-11-08 18:58:48,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:48,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:48,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 18:58:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:48,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 18:58:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:48,722 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:58:48,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:48,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197369360] [2024-11-08 18:58:48,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197369360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:48,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877247632] [2024-11-08 18:58:48,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:48,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:48,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:48,727 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:48,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 18:58:48,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:48,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:58:48,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:58:48,881 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:58:48,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877247632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:48,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:58:48,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-08 18:58:48,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271745282] [2024-11-08 18:58:48,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:48,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:58:48,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:48,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:58:48,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:58:48,887 INFO L87 Difference]: Start difference. First operand 84 states and 92 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:58:48,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:48,928 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2024-11-08 18:58:48,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:58:48,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-11-08 18:58:48,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:48,930 INFO L225 Difference]: With dead ends: 84 [2024-11-08 18:58:48,931 INFO L226 Difference]: Without dead ends: 83 [2024-11-08 18:58:48,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:58:48,932 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:48,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 59 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:58:48,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-08 18:58:48,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-08 18:58:48,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 77 states have internal predecessors, (81), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-08 18:58:48,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 89 transitions. [2024-11-08 18:58:48,970 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 89 transitions. Word has length 41 [2024-11-08 18:58:48,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:48,970 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 89 transitions. [2024-11-08 18:58:48,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:58:48,971 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 89 transitions. [2024-11-08 18:58:48,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-08 18:58:48,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:48,972 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:48,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 18:58:49,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:49,173 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:49,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:49,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1286221504, now seen corresponding path program 1 times [2024-11-08 18:58:49,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:49,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134235017] [2024-11-08 18:58:49,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:49,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:49,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:49,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 18:58:49,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:49,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 18:58:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:49,265 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:58:49,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:49,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134235017] [2024-11-08 18:58:49,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134235017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:49,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688070879] [2024-11-08 18:58:49,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:49,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:49,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:49,269 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:49,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:58:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:49,340 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 18:58:49,342 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:49,438 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:58:49,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:58:49,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688070879] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:58:49,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:58:49,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-08 18:58:49,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514061273] [2024-11-08 18:58:49,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:58:49,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:58:49,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:49,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:58:49,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:58:49,555 INFO L87 Difference]: Start difference. First operand 83 states and 89 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:58:49,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:49,617 INFO L93 Difference]: Finished difference Result 96 states and 102 transitions. [2024-11-08 18:58:49,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:58:49,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 42 [2024-11-08 18:58:49,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:49,619 INFO L225 Difference]: With dead ends: 96 [2024-11-08 18:58:49,619 INFO L226 Difference]: Without dead ends: 95 [2024-11-08 18:58:49,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:58:49,621 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 6 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:49,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 106 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:58:49,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-08 18:58:49,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2024-11-08 18:58:49,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 83 states have (on average 1.072289156626506) internal successors, (89), 86 states have internal predecessors, (89), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:58:49,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 99 transitions. [2024-11-08 18:58:49,636 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 99 transitions. Word has length 42 [2024-11-08 18:58:49,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:49,636 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 99 transitions. [2024-11-08 18:58:49,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-08 18:58:49,637 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 99 transitions. [2024-11-08 18:58:49,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 18:58:49,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:49,645 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-08 18:58:49,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 18:58:49,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 18:58:49,847 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:49,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:49,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1485172451, now seen corresponding path program 1 times [2024-11-08 18:58:49,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:49,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165733090] [2024-11-08 18:58:49,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:49,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:50,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 18:58:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:50,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 18:58:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:50,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 18:58:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:58:50,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:50,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165733090] [2024-11-08 18:58:50,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165733090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:50,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571839542] [2024-11-08 18:58:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:50,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:50,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:50,199 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:50,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 18:58:50,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:50,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 18:58:50,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:50,744 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:58:50,745 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:51,135 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:58:51,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571839542] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:58:51,136 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:58:51,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-11-08 18:58:51,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703785112] [2024-11-08 18:58:51,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:58:51,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-08 18:58:51,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:51,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-08 18:58:51,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=236, Unknown=0, NotChecked=0, Total=380 [2024-11-08 18:58:51,141 INFO L87 Difference]: Start difference. First operand 93 states and 99 transitions. Second operand has 20 states, 19 states have (on average 8.052631578947368) internal successors, (153), 20 states have internal predecessors, (153), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:58:51,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:51,679 INFO L93 Difference]: Finished difference Result 134 states and 148 transitions. [2024-11-08 18:58:51,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:58:51,680 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 8.052631578947368) internal successors, (153), 20 states have internal predecessors, (153), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 67 [2024-11-08 18:58:51,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:51,683 INFO L225 Difference]: With dead ends: 134 [2024-11-08 18:58:51,683 INFO L226 Difference]: Without dead ends: 133 [2024-11-08 18:58:51,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=248, Invalid=402, Unknown=0, NotChecked=0, Total=650 [2024-11-08 18:58:51,685 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:51,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 86 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:58:51,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-08 18:58:51,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2024-11-08 18:58:51,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 119 states have (on average 1.0924369747899159) internal successors, (130), 122 states have internal predecessors, (130), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 18:58:51,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 144 transitions. [2024-11-08 18:58:51,703 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 144 transitions. Word has length 67 [2024-11-08 18:58:51,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:51,704 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 144 transitions. [2024-11-08 18:58:51,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 8.052631578947368) internal successors, (153), 20 states have internal predecessors, (153), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:58:51,705 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 144 transitions. [2024-11-08 18:58:51,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-08 18:58:51,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:51,707 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-08 18:58:51,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 18:58:51,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 18:58:51,912 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:51,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:51,913 INFO L85 PathProgramCache]: Analyzing trace with hash 726824438, now seen corresponding path program 2 times [2024-11-08 18:58:51,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:51,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594962748] [2024-11-08 18:58:51,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:51,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:51,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:52,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 18:58:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:52,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 18:58:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:52,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 18:58:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:52,217 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:58:52,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:52,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594962748] [2024-11-08 18:58:52,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594962748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:52,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498286484] [2024-11-08 18:58:52,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:58:52,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:52,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:52,221 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:52,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 18:58:52,305 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:58:52,306 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:58:52,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 18:58:52,310 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:58:52,734 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:58:53,068 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:58:53,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498286484] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:58:53,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:58:53,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-08 18:58:53,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34786835] [2024-11-08 18:58:53,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:58:53,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-08 18:58:53,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:53,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-08 18:58:53,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=297, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:58:53,073 INFO L87 Difference]: Start difference. First operand 131 states and 144 transitions. Second operand has 22 states, 21 states have (on average 7.761904761904762) internal successors, (163), 22 states have internal predecessors, (163), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:58:53,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:53,661 INFO L93 Difference]: Finished difference Result 140 states and 151 transitions. [2024-11-08 18:58:53,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 18:58:53,662 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 7.761904761904762) internal successors, (163), 22 states have internal predecessors, (163), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 72 [2024-11-08 18:58:53,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:53,663 INFO L225 Difference]: With dead ends: 140 [2024-11-08 18:58:53,664 INFO L226 Difference]: Without dead ends: 139 [2024-11-08 18:58:53,665 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=321, Invalid=549, Unknown=0, NotChecked=0, Total=870 [2024-11-08 18:58:53,665 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 69 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:53,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 120 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:58:53,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-08 18:58:53,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136. [2024-11-08 18:58:53,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 124 states have (on average 1.0725806451612903) internal successors, (133), 127 states have internal predecessors, (133), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-08 18:58:53,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 147 transitions. [2024-11-08 18:58:53,677 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 147 transitions. Word has length 72 [2024-11-08 18:58:53,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:53,678 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 147 transitions. [2024-11-08 18:58:53,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 7.761904761904762) internal successors, (163), 22 states have internal predecessors, (163), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:58:53,679 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 147 transitions. [2024-11-08 18:58:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 18:58:53,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:58:53,680 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-08 18:58:53,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-08 18:58:53,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-08 18:58:53,881 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-08 18:58:53,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:58:53,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1837185261, now seen corresponding path program 2 times [2024-11-08 18:58:53,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:58:53,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189155450] [2024-11-08 18:58:53,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:58:53,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:58:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:54,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 18:58:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:54,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 18:58:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:54,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 18:58:54,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:54,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:58:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:58:54,283 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 77 proven. 37 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:58:54,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:58:54,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189155450] [2024-11-08 18:58:54,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189155450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:58:54,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209491845] [2024-11-08 18:58:54,285 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 18:58:54,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:58:54,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:58:54,288 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:58:54,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 18:58:54,379 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 18:58:54,379 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 18:58:54,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 18:58:54,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:58:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 114 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:58:55,081 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:58:55,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209491845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:58:55,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:58:55,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2024-11-08 18:58:55,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104192792] [2024-11-08 18:58:55,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:58:55,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:58:55,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:58:55,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:58:55,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:58:55,086 INFO L87 Difference]: Start difference. First operand 136 states and 147 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-08 18:58:55,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:58:55,128 INFO L93 Difference]: Finished difference Result 140 states and 150 transitions. [2024-11-08 18:58:55,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:58:55,129 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 91 [2024-11-08 18:58:55,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:58:55,130 INFO L225 Difference]: With dead ends: 140 [2024-11-08 18:58:55,130 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 18:58:55,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:58:55,133 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:58:55,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:58:55,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 18:58:55,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 18:58:55,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-08 18:58:55,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 18:58:55,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 91 [2024-11-08 18:58:55,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:58:55,137 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:58:55,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-08 18:58:55,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:58:55,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 18:58:55,142 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 22 remaining) [2024-11-08 18:58:55,143 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 22 remaining) [2024-11-08 18:58:55,143 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 22 remaining) [2024-11-08 18:58:55,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 22 remaining) [2024-11-08 18:58:55,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 22 remaining) [2024-11-08 18:58:55,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 22 remaining) [2024-11-08 18:58:55,144 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 22 remaining) [2024-11-08 18:58:55,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 22 remaining) [2024-11-08 18:58:55,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 22 remaining) [2024-11-08 18:58:55,145 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 22 remaining) [2024-11-08 18:58:55,146 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 22 remaining) [2024-11-08 18:58:55,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 22 remaining) [2024-11-08 18:58:55,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 22 remaining) [2024-11-08 18:58:55,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 22 remaining) [2024-11-08 18:58:55,147 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 22 remaining) [2024-11-08 18:58:55,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 22 remaining) [2024-11-08 18:58:55,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 22 remaining) [2024-11-08 18:58:55,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 22 remaining) [2024-11-08 18:58:55,148 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 22 remaining) [2024-11-08 18:58:55,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 22 remaining) [2024-11-08 18:58:55,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 22 remaining) [2024-11-08 18:58:55,149 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 22 remaining) [2024-11-08 18:58:55,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-08 18:58:55,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-08 18:58:55,357 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:58:55,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 18:58:55,451 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:58:55,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:58:55 BoogieIcfgContainer [2024-11-08 18:58:55,482 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:58:55,482 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:58:55,482 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:58:55,483 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:58:55,484 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:58:41" (3/4) ... [2024-11-08 18:58:55,487 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:58:55,494 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-08 18:58:55,500 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-08 18:58:55,502 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 18:58:55,503 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 18:58:55,503 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 18:58:55,632 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:58:55,632 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:58:55,632 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:58:55,633 INFO L158 Benchmark]: Toolchain (without parser) took 15509.79ms. Allocated memory was 142.6MB in the beginning and 234.9MB in the end (delta: 92.3MB). Free memory was 105.5MB in the beginning and 179.4MB in the end (delta: -73.9MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2024-11-08 18:58:55,634 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:58:55,634 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.84ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 92.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 18:58:55,635 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.64ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:58:55,635 INFO L158 Benchmark]: Boogie Preprocessor took 77.93ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 89.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:58:55,636 INFO L158 Benchmark]: RCFGBuilder took 649.85ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 76.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 18:58:55,636 INFO L158 Benchmark]: TraceAbstraction took 14177.19ms. Allocated memory was 142.6MB in the beginning and 234.9MB in the end (delta: 92.3MB). Free memory was 75.4MB in the beginning and 183.6MB in the end (delta: -108.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:58:55,637 INFO L158 Benchmark]: Witness Printer took 150.42ms. Allocated memory is still 234.9MB. Free memory was 183.6MB in the beginning and 179.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:58:55,640 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 142.6MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.84ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 92.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.64ms. Allocated memory is still 142.6MB. Free memory was 92.7MB in the beginning and 91.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.93ms. Allocated memory is still 142.6MB. Free memory was 91.2MB in the beginning and 89.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 649.85ms. Allocated memory is still 142.6MB. Free memory was 89.3MB in the beginning and 76.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 14177.19ms. Allocated memory was 142.6MB in the beginning and 234.9MB in the end (delta: 92.3MB). Free memory was 75.4MB in the beginning and 183.6MB in the end (delta: -108.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 150.42ms. Allocated memory is still 234.9MB. Free memory was 183.6MB in the beginning and 179.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 34]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 62 locations, 22 error locations. Started 1 CEGAR loops. OverallTime: 13.9s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 464 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 456 mSDsluCounter, 1217 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 709 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1278 IncrementalHoareTripleChecker+Invalid, 1353 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 508 mSDtfsCounter, 1278 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 806 GetRequests, 694 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 471 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=15, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 67 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 972 NumberOfCodeBlocks, 972 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1175 ConstructedInterpolants, 0 QuantifiedInterpolants, 5865 SizeOfPredicates, 5 NumberOfNonLiveVariables, 905 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 30 InterpolantComputations, 10 PerfectInterpolantSequences, 350/829 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 22 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((0 <= k) && (c == 0)) && (k <= 1)) && (y == 0)) && (x == 0)) || (((((0 <= k) && (k <= 1)) && (c == 1)) && (x == 1)) && (y == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-08 18:58:55,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5214680c-5031-43e7-ac78-3e84e007ba1a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE