./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU --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 1fbe6596ea58bb65874b731661e9f9f596a91893af06dcebaa497157579c7f46 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:02:40,510 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:02:40,577 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 22:02:40,583 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:02:40,584 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:02:40,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:02:40,623 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:02:40,624 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:02:40,625 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:02:40,626 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:02:40,627 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:02:40,627 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:02:40,628 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:02:40,628 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:02:40,628 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:02:40,629 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:02:40,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:02:40,633 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:02:40,633 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:02:40,633 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:02:40,634 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:02:40,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:02:40,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:02:40,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:02:40,636 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:02:40,637 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 22:02:40,637 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:02:40,637 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:02:40,638 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:02:40,638 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:02:40,638 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:02:40,638 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:02:40,639 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:02:40,639 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:02:40,639 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:40,640 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:02:40,640 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:02:40,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:02:40,641 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:02:40,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:02:40,642 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:02:40,642 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:02:40,642 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:02:40,643 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:02:40,643 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_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fbe6596ea58bb65874b731661e9f9f596a91893af06dcebaa497157579c7f46 [2024-10-31 22:02:40,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:02:40,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:02:40,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:02:40,954 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:02:40,955 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:02:40,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.c Unable to find full path for "g++" [2024-10-31 22:02:42,965 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:02:43,230 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:02:43,231 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.c [2024-10-31 22:02:43,241 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/data/31515b752/bb0d423477084dfc88b532c8090af81c/FLAG35242032b [2024-10-31 22:02:43,579 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/data/31515b752/bb0d423477084dfc88b532c8090af81c [2024-10-31 22:02:43,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:02:43,584 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:02:43,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:43,586 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:02:43,593 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:02:43,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:43" (1/1) ... [2024-10-31 22:02:43,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3584f8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:43, skipping insertion in model container [2024-10-31 22:02:43,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:02:43" (1/1) ... [2024-10-31 22:02:43,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:02:43,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:43,975 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:02:44,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:02:44,037 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:02:44,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44 WrapperNode [2024-10-31 22:02:44,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:02:44,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:44,042 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:02:44,042 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:02:44,050 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,064 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,089 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 104 [2024-10-31 22:02:44,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:02:44,091 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:02:44,091 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:02:44,091 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:02:44,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,114 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,144 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]. [2024-10-31 22:02:44,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:02:44,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:02:44,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:02:44,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:02:44,182 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (1/1) ... [2024-10-31 22:02:44,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:02:44,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:44,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:02:44,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:02:44,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:02:44,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:02:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:02:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:02:44,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 22:02:44,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 22:02:44,354 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:02:44,357 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:02:44,941 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-10-31 22:02:44,941 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:02:44,958 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:02:44,958 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:02:44,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:44 BoogieIcfgContainer [2024-10-31 22:02:44,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:02:44,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:02:44,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:02:44,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:02:44,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:02:43" (1/3) ... [2024-10-31 22:02:44,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b66b09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:44, skipping insertion in model container [2024-10-31 22:02:44,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:02:44" (2/3) ... [2024-10-31 22:02:44,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b66b09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:02:44, skipping insertion in model container [2024-10-31 22:02:44,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:02:44" (3/3) ... [2024-10-31 22:02:44,968 INFO L112 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound20.c [2024-10-31 22:02:44,987 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:02:44,988 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 60 error locations. [2024-10-31 22:02:45,056 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:02:45,063 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;@2defbe79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:02:45,063 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-10-31 22:02:45,068 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 74 states have (on average 1.8783783783783783) internal successors, (139), 134 states have internal predecessors, (139), 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) [2024-10-31 22:02:45,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-31 22:02:45,073 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:45,074 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:02:45,074 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:02:45,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:45,078 INFO L85 PathProgramCache]: Analyzing trace with hash 889508915, now seen corresponding path program 1 times [2024-10-31 22:02:45,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:45,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301249737] [2024-10-31 22:02:45,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:45,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:45,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:45,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:45,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301249737] [2024-10-31 22:02:45,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301249737] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:45,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:45,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:45,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689483205] [2024-10-31 22:02:45,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:45,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:02:45,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:45,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:02:45,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:02:45,264 INFO L87 Difference]: Start difference. First operand has 139 states, 74 states have (on average 1.8783783783783783) internal successors, (139), 134 states have internal predecessors, (139), 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) 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) [2024-10-31 22:02:45,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:45,297 INFO L93 Difference]: Finished difference Result 264 states and 288 transitions. [2024-10-31 22:02:45,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:02:45,300 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 [2024-10-31 22:02:45,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:45,308 INFO L225 Difference]: With dead ends: 264 [2024-10-31 22:02:45,308 INFO L226 Difference]: Without dead ends: 122 [2024-10-31 22:02:45,311 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 [2024-10-31 22:02:45,315 INFO L432 NwaCegarLoop]: 130 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, 130 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 [2024-10-31 22:02:45,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:02:45,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-10-31 22:02:45,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2024-10-31 22:02:45,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 69 states have (on average 1.7246376811594204) internal successors, (119), 118 states have internal predecessors, (119), 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) [2024-10-31 22:02:45,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 123 transitions. [2024-10-31 22:02:45,372 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 123 transitions. Word has length 6 [2024-10-31 22:02:45,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:45,373 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 123 transitions. [2024-10-31 22:02:45,374 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) [2024-10-31 22:02:45,374 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 123 transitions. [2024-10-31 22:02:45,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-31 22:02:45,376 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:45,376 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:02:45,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:02:45,377 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:02:45,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:45,378 INFO L85 PathProgramCache]: Analyzing trace with hash 889568486, now seen corresponding path program 1 times [2024-10-31 22:02:45,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:45,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587135996] [2024-10-31 22:02:45,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:45,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:45,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:45,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:45,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587135996] [2024-10-31 22:02:45,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587135996] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:45,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:45,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:45,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502237831] [2024-10-31 22:02:45,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:45,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:45,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:45,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:45,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:45,495 INFO L87 Difference]: Start difference. First operand 122 states and 123 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2024-10-31 22:02:45,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:45,704 INFO L93 Difference]: Finished difference Result 228 states and 239 transitions. [2024-10-31 22:02:45,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:45,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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 [2024-10-31 22:02:45,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:45,710 INFO L225 Difference]: With dead ends: 228 [2024-10-31 22:02:45,710 INFO L226 Difference]: Without dead ends: 217 [2024-10-31 22:02:45,711 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 [2024-10-31 22:02:45,713 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 92 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:45,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 184 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:02:45,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-10-31 22:02:45,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 175. [2024-10-31 22:02:45,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 120 states have (on average 1.675) internal successors, (201), 169 states have internal predecessors, (201), 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) [2024-10-31 22:02:45,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 209 transitions. [2024-10-31 22:02:45,729 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 209 transitions. Word has length 6 [2024-10-31 22:02:45,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:45,729 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 209 transitions. [2024-10-31 22:02:45,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 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) [2024-10-31 22:02:45,730 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 209 transitions. [2024-10-31 22:02:45,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-31 22:02:45,730 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:45,730 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:45,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:02:45,731 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:02:45,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:45,732 INFO L85 PathProgramCache]: Analyzing trace with hash 1186601808, now seen corresponding path program 1 times [2024-10-31 22:02:45,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:45,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262984160] [2024-10-31 22:02:45,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:45,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:02:45,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [756879218] [2024-10-31 22:02:45,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:45,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:45,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:45,766 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:45,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:02:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:45,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 22:02:45,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:45,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:45,848 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:02:45,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:45,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262984160] [2024-10-31 22:02:45,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:02:45,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756879218] [2024-10-31 22:02:45,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756879218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:45,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:45,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:45,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232519989] [2024-10-31 22:02:45,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:45,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:45,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:45,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:45,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:45,853 INFO L87 Difference]: Start difference. First operand 175 states and 209 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-10-31 22:02:46,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:46,215 INFO L93 Difference]: Finished difference Result 208 states and 217 transitions. [2024-10-31 22:02:46,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:46,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2024-10-31 22:02:46,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:46,219 INFO L225 Difference]: With dead ends: 208 [2024-10-31 22:02:46,219 INFO L226 Difference]: Without dead ends: 181 [2024-10-31 22:02:46,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:46,224 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 52 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:46,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 95 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:02:46,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-10-31 22:02:46,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 179. [2024-10-31 22:02:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 124 states have (on average 1.467741935483871) internal successors, (182), 173 states have internal predecessors, (182), 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) [2024-10-31 22:02:46,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 190 transitions. [2024-10-31 22:02:46,258 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 190 transitions. Word has length 9 [2024-10-31 22:02:46,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:46,259 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 190 transitions. [2024-10-31 22:02:46,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2024-10-31 22:02:46,260 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 190 transitions. [2024-10-31 22:02:46,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-31 22:02:46,260 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:46,260 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:46,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:46,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:46,462 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:02:46,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:46,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2083520750, now seen corresponding path program 1 times [2024-10-31 22:02:46,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:46,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536951554] [2024-10-31 22:02:46,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:46,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:46,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:46,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:46,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536951554] [2024-10-31 22:02:46,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536951554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:46,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:46,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:46,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740690648] [2024-10-31 22:02:46,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:46,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:46,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:46,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:46,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:46,644 INFO L87 Difference]: Start difference. First operand 179 states and 190 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-10-31 22:02:50,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-31 22:02:50,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:50,720 INFO L93 Difference]: Finished difference Result 196 states and 201 transitions. [2024-10-31 22:02:50,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:02:50,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-10-31 22:02:50,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:50,722 INFO L225 Difference]: With dead ends: 196 [2024-10-31 22:02:50,722 INFO L226 Difference]: Without dead ends: 162 [2024-10-31 22:02:50,722 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 [2024-10-31 22:02:50,724 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 64 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:50,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 171 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-31 22:02:50,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-31 22:02:50,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 151. [2024-10-31 22:02:50,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 97 states have (on average 1.5360824742268042) internal successors, (149), 146 states have internal predecessors, (149), 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) [2024-10-31 22:02:50,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 155 transitions. [2024-10-31 22:02:50,734 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 155 transitions. Word has length 14 [2024-10-31 22:02:50,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:50,735 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 155 transitions. [2024-10-31 22:02:50,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-10-31 22:02:50,735 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 155 transitions. [2024-10-31 22:02:50,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-31 22:02:50,736 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:50,736 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:50,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:02:50,737 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:02:50,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:50,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1440892529, now seen corresponding path program 1 times [2024-10-31 22:02:50,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:50,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921174886] [2024-10-31 22:02:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:50,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:02:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:50,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:50,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:50,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921174886] [2024-10-31 22:02:50,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921174886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:50,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:50,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:02:50,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221709136] [2024-10-31 22:02:50,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:50,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:02:50,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:50,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:02:50,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:02:50,892 INFO L87 Difference]: Start difference. First operand 151 states and 155 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-31 22:02:50,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:50,920 INFO L93 Difference]: Finished difference Result 153 states and 155 transitions. [2024-10-31 22:02:50,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:50,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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 34 [2024-10-31 22:02:50,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:50,922 INFO L225 Difference]: With dead ends: 153 [2024-10-31 22:02:50,922 INFO L226 Difference]: Without dead ends: 151 [2024-10-31 22:02:50,922 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 [2024-10-31 22:02:50,923 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 1 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 235 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 [2024-10-31 22:02:50,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 235 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:02:50,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-10-31 22:02:50,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-10-31 22:02:50,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 97 states have (on average 1.5154639175257731) internal successors, (147), 146 states have internal predecessors, (147), 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) [2024-10-31 22:02:50,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 153 transitions. [2024-10-31 22:02:50,942 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 153 transitions. Word has length 34 [2024-10-31 22:02:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:50,947 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 153 transitions. [2024-10-31 22:02:50,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-10-31 22:02:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 153 transitions. [2024-10-31 22:02:50,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-31 22:02:50,948 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:50,949 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:50,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:02:50,949 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:02:50,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:50,950 INFO L85 PathProgramCache]: Analyzing trace with hash -899602629, now seen corresponding path program 1 times [2024-10-31 22:02:50,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:50,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114946300] [2024-10-31 22:02:50,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:50,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:02:50,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142840687] [2024-10-31 22:02:50,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:50,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:50,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:51,000 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:51,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:02:51,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:51,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:02:51,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:51,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:51,181 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:02:51,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:51,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114946300] [2024-10-31 22:02:51,182 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:02:51,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142840687] [2024-10-31 22:02:51,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142840687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:51,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:51,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:51,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278261390] [2024-10-31 22:02:51,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:51,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:51,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:51,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:51,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:51,185 INFO L87 Difference]: Start difference. First operand 151 states and 153 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-10-31 22:02:51,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:51,568 INFO L93 Difference]: Finished difference Result 247 states and 269 transitions. [2024-10-31 22:02:51,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:02:51,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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 39 [2024-10-31 22:02:51,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:51,570 INFO L225 Difference]: With dead ends: 247 [2024-10-31 22:02:51,571 INFO L226 Difference]: Without dead ends: 221 [2024-10-31 22:02:51,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:51,572 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 66 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:51,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 107 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:02:51,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-31 22:02:51,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 213. [2024-10-31 22:02:51,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 157 states have (on average 1.464968152866242) internal successors, (230), 206 states have internal predecessors, (230), 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) [2024-10-31 22:02:51,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 240 transitions. [2024-10-31 22:02:51,585 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 240 transitions. Word has length 39 [2024-10-31 22:02:51,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:51,585 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 240 transitions. [2024-10-31 22:02:51,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 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) [2024-10-31 22:02:51,586 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 240 transitions. [2024-10-31 22:02:51,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-31 22:02:51,587 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:51,587 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:51,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-31 22:02:51,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:51,793 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:02:51,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:51,794 INFO L85 PathProgramCache]: Analyzing trace with hash 534117783, now seen corresponding path program 1 times [2024-10-31 22:02:51,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:51,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454052510] [2024-10-31 22:02:51,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:51,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:52,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:02:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:52,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:52,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454052510] [2024-10-31 22:02:52,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454052510] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:52,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:52,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:52,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268985510] [2024-10-31 22:02:52,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:52,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:52,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:52,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:52,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:52,011 INFO L87 Difference]: Start difference. First operand 213 states and 240 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-10-31 22:02:56,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-31 22:02:56,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:56,843 INFO L93 Difference]: Finished difference Result 214 states and 240 transitions. [2024-10-31 22:02:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:02:56,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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 42 [2024-10-31 22:02:56,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:56,845 INFO L225 Difference]: With dead ends: 214 [2024-10-31 22:02:56,846 INFO L226 Difference]: Without dead ends: 213 [2024-10-31 22:02:56,846 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 [2024-10-31 22:02:56,847 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 30 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:56,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 194 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 172 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2024-10-31 22:02:56,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-31 22:02:56,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-10-31 22:02:56,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 157 states have (on average 1.4585987261146496) internal successors, (229), 206 states have internal predecessors, (229), 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) [2024-10-31 22:02:56,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 239 transitions. [2024-10-31 22:02:56,859 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 239 transitions. Word has length 42 [2024-10-31 22:02:56,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:56,860 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 239 transitions. [2024-10-31 22:02:56,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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) [2024-10-31 22:02:56,860 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 239 transitions. [2024-10-31 22:02:56,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-31 22:02:56,862 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:56,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:56,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:02:56,862 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:02:56,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:56,863 INFO L85 PathProgramCache]: Analyzing trace with hash -622217793, now seen corresponding path program 1 times [2024-10-31 22:02:56,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:56,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50484056] [2024-10-31 22:02:56,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:56,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:56,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-10-31 22:02:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:56,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:56,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:56,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50484056] [2024-10-31 22:02:56,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50484056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:56,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:56,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 22:02:56,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057744091] [2024-10-31 22:02:56,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:56,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:02:56,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:56,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:02:56,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:02:56,973 INFO L87 Difference]: Start difference. First operand 213 states and 239 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-10-31 22:02:57,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:57,102 INFO L93 Difference]: Finished difference Result 214 states and 239 transitions. [2024-10-31 22:02:57,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:02:57,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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 43 [2024-10-31 22:02:57,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:57,104 INFO L225 Difference]: With dead ends: 214 [2024-10-31 22:02:57,105 INFO L226 Difference]: Without dead ends: 213 [2024-10-31 22:02:57,105 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 [2024-10-31 22:02:57,106 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 27 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:57,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 183 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:02:57,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-31 22:02:57,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-10-31 22:02:57,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 157 states have (on average 1.4522292993630572) internal successors, (228), 206 states have internal predecessors, (228), 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) [2024-10-31 22:02:57,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 238 transitions. [2024-10-31 22:02:57,116 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 238 transitions. Word has length 43 [2024-10-31 22:02:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:57,116 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 238 transitions. [2024-10-31 22:02:57,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 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) [2024-10-31 22:02:57,117 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 238 transitions. [2024-10-31 22:02:57,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-10-31 22:02:57,118 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:57,118 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:57,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:02:57,118 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:02:57,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:57,119 INFO L85 PathProgramCache]: Analyzing trace with hash -950843391, now seen corresponding path program 1 times [2024-10-31 22:02:57,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:57,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817337623] [2024-10-31 22:02:57,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:57,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:02:57,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1025832936] [2024-10-31 22:02:57,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:57,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:57,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:57,140 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:57,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 22:02:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:57,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-31 22:02:57,195 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:57,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:57,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:02:57,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:57,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:57,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817337623] [2024-10-31 22:02:57,677 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:02:57,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025832936] [2024-10-31 22:02:57,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025832936] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:02:57,678 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:02:57,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-31 22:02:57,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614679534] [2024-10-31 22:02:57,678 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:02:57,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:02:57,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:57,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:02:57,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:02:57,680 INFO L87 Difference]: Start difference. First operand 213 states and 238 transitions. Second operand has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 8 states have internal predecessors, (80), 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) [2024-10-31 22:02:58,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:58,445 INFO L93 Difference]: Finished difference Result 238 states and 252 transitions. [2024-10-31 22:02:58,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 22:02:58,446 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 8 states have internal predecessors, (80), 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 45 [2024-10-31 22:02:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:58,449 INFO L225 Difference]: With dead ends: 238 [2024-10-31 22:02:58,449 INFO L226 Difference]: Without dead ends: 225 [2024-10-31 22:02:58,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:02:58,450 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 277 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:58,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 88 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-31 22:02:58,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-10-31 22:02:58,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 214. [2024-10-31 22:02:58,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 161 states have (on average 1.3726708074534162) internal successors, (221), 207 states have internal predecessors, (221), 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) [2024-10-31 22:02:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 231 transitions. [2024-10-31 22:02:58,463 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 231 transitions. Word has length 45 [2024-10-31 22:02:58,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:58,463 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 231 transitions. [2024-10-31 22:02:58,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.428571428571429) internal successors, (80), 8 states have internal predecessors, (80), 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) [2024-10-31 22:02:58,464 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 231 transitions. [2024-10-31 22:02:58,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-31 22:02:58,467 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:58,468 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:58,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 22:02:58,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:58,672 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:02:58,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:58,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1023033609, now seen corresponding path program 1 times [2024-10-31 22:02:58,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:58,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672723930] [2024-10-31 22:02:58,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:58,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:02:58,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084919099] [2024-10-31 22:02:58,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:58,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:58,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:58,718 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:58,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 22:02:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:58,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:02:58,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:02:59,075 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:02:59,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 22:02:59,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:02:59,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672723930] [2024-10-31 22:02:59,077 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:02:59,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084919099] [2024-10-31 22:02:59,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084919099] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:02:59,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:02:59,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:02:59,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729755173] [2024-10-31 22:02:59,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:02:59,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:02:59,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:02:59,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:02:59,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:59,081 INFO L87 Difference]: Start difference. First operand 214 states and 231 transitions. Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 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) [2024-10-31 22:02:59,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:02:59,488 INFO L93 Difference]: Finished difference Result 214 states and 231 transitions. [2024-10-31 22:02:59,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:02:59,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 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) Word has length 53 [2024-10-31 22:02:59,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:02:59,492 INFO L225 Difference]: With dead ends: 214 [2024-10-31 22:02:59,492 INFO L226 Difference]: Without dead ends: 165 [2024-10-31 22:02:59,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:02:59,493 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 96 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:02:59,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 57 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:02:59,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-10-31 22:02:59,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 158. [2024-10-31 22:02:59,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 133 states have (on average 1.1804511278195489) internal successors, (157), 152 states have internal predecessors, (157), 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) [2024-10-31 22:02:59,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 165 transitions. [2024-10-31 22:02:59,503 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 165 transitions. Word has length 53 [2024-10-31 22:02:59,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:02:59,504 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 165 transitions. [2024-10-31 22:02:59,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 6 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) [2024-10-31 22:02:59,505 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 165 transitions. [2024-10-31 22:02:59,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-31 22:02:59,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:02:59,507 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:02:59,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 22:02:59,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:59,712 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:02:59,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:02:59,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1284907517, now seen corresponding path program 1 times [2024-10-31 22:02:59,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:02:59,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635205982] [2024-10-31 22:02:59,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:59,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:02:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:02:59,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [536297887] [2024-10-31 22:02:59,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:02:59,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:02:59,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:02:59,746 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:02:59,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 22:02:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:02:59,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 22:02:59,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:00,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:00,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:00,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635205982] [2024-10-31 22:03:00,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:03:00,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536297887] [2024-10-31 22:03:00,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536297887] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:00,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:03:00,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-31 22:03:00,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346146489] [2024-10-31 22:03:00,562 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:00,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:03:00,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:00,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:03:00,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:03:00,563 INFO L87 Difference]: Start difference. First operand 158 states and 165 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 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) [2024-10-31 22:03:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:00,868 INFO L93 Difference]: Finished difference Result 158 states and 165 transitions. [2024-10-31 22:03:00,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:00,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 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) Word has length 73 [2024-10-31 22:03:00,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:00,870 INFO L225 Difference]: With dead ends: 158 [2024-10-31 22:03:00,870 INFO L226 Difference]: Without dead ends: 156 [2024-10-31 22:03:00,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:03:00,871 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 44 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:00,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 56 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:03:00,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-10-31 22:03:00,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2024-10-31 22:03:00,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 133 states have (on average 1.1578947368421053) internal successors, (154), 150 states have internal predecessors, (154), 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) [2024-10-31 22:03:00,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 162 transitions. [2024-10-31 22:03:00,882 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 162 transitions. Word has length 73 [2024-10-31 22:03:00,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:00,882 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 162 transitions. [2024-10-31 22:03:00,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 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) [2024-10-31 22:03:00,883 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 162 transitions. [2024-10-31 22:03:00,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-31 22:03:00,883 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:00,884 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:00,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-31 22:03:01,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:01,085 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:03:01,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:01,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1177427238, now seen corresponding path program 1 times [2024-10-31 22:03:01,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:01,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59059399] [2024-10-31 22:03:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:01,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:01,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:03:01,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1083606267] [2024-10-31 22:03:01,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:01,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:01,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:01,117 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:01,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 22:03:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:01,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:03:01,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:01,497 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:01,498 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:01,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:01,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59059399] [2024-10-31 22:03:01,670 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:03:01,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083606267] [2024-10-31 22:03:01,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083606267] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:01,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:03:01,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-31 22:03:01,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111191292] [2024-10-31 22:03:01,671 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:01,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:03:01,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:01,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:03:01,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:03:01,673 INFO L87 Difference]: Start difference. First operand 156 states and 162 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 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) [2024-10-31 22:03:02,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:02,134 INFO L93 Difference]: Finished difference Result 161 states and 165 transitions. [2024-10-31 22:03:02,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:02,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 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) Word has length 74 [2024-10-31 22:03:02,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:02,136 INFO L225 Difference]: With dead ends: 161 [2024-10-31 22:03:02,136 INFO L226 Difference]: Without dead ends: 157 [2024-10-31 22:03:02,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:03:02,137 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 6 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:02,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 110 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:03:02,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-10-31 22:03:02,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2024-10-31 22:03:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 134 states have (on average 1.1417910447761195) internal successors, (153), 151 states have internal predecessors, (153), 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) [2024-10-31 22:03:02,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 161 transitions. [2024-10-31 22:03:02,181 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 161 transitions. Word has length 74 [2024-10-31 22:03:02,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:02,182 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 161 transitions. [2024-10-31 22:03:02,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 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) [2024-10-31 22:03:02,182 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 161 transitions. [2024-10-31 22:03:02,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-31 22:03:02,183 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:02,185 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:02,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 22:03:02,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:02,386 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:03:02,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:02,387 INFO L85 PathProgramCache]: Analyzing trace with hash 263185351, now seen corresponding path program 1 times [2024-10-31 22:03:02,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:02,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721025863] [2024-10-31 22:03:02,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:02,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:03:02,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1840008798] [2024-10-31 22:03:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:02,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:02,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:02,430 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:02,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 22:03:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:02,531 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:03:02,533 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:02,873 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:02,873 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:03,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:03,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721025863] [2024-10-31 22:03:03,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:03:03,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840008798] [2024-10-31 22:03:03,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840008798] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:03:03,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-31 22:03:03,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-31 22:03:03,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640597260] [2024-10-31 22:03:03,111 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:03,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 22:03:03,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:03,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 22:03:03,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:03:03,113 INFO L87 Difference]: Start difference. First operand 157 states and 161 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-10-31 22:03:03,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:03,758 INFO L93 Difference]: Finished difference Result 160 states and 163 transitions. [2024-10-31 22:03:03,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:03:03,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 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 77 [2024-10-31 22:03:03,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:03,760 INFO L225 Difference]: With dead ends: 160 [2024-10-31 22:03:03,760 INFO L226 Difference]: Without dead ends: 154 [2024-10-31 22:03:03,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:03:03,766 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 6 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:03,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 117 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 22:03:03,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-10-31 22:03:03,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2024-10-31 22:03:03,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 129 states have (on average 1.1395348837209303) internal successors, (147), 146 states have internal predecessors, (147), 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) [2024-10-31 22:03:03,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 155 transitions. [2024-10-31 22:03:03,776 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 155 transitions. Word has length 77 [2024-10-31 22:03:03,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:03,776 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 155 transitions. [2024-10-31 22:03:03,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 5 states have internal predecessors, (70), 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) [2024-10-31 22:03:03,777 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 155 transitions. [2024-10-31 22:03:03,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-31 22:03:03,778 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:03,778 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-31 22:03:03,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-31 22:03:03,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:03,982 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:03:03,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:03,983 INFO L85 PathProgramCache]: Analyzing trace with hash 663399296, now seen corresponding path program 1 times [2024-10-31 22:03:03,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:03,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048585536] [2024-10-31 22:03:03,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:03,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:03:04,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521060943] [2024-10-31 22:03:04,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:04,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:04,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:04,031 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:04,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 22:03:04,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:04,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:03:04,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:04,234 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:04,235 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:04,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:04,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048585536] [2024-10-31 22:03:04,486 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:03:04,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521060943] [2024-10-31 22:03:04,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521060943] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:03:04,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:03:04,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-10-31 22:03:04,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535371058] [2024-10-31 22:03:04,487 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:04,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:03:04,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:04,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:03:04,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:03:04,489 INFO L87 Difference]: Start difference. First operand 152 states and 155 transitions. Second operand has 8 states, 7 states have (on average 19.428571428571427) internal successors, (136), 8 states have internal predecessors, (136), 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) [2024-10-31 22:03:04,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:03:04,975 INFO L93 Difference]: Finished difference Result 228 states and 247 transitions. [2024-10-31 22:03:04,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:03:04,976 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 19.428571428571427) internal successors, (136), 8 states have internal predecessors, (136), 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 78 [2024-10-31 22:03:04,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:03:04,978 INFO L225 Difference]: With dead ends: 228 [2024-10-31 22:03:04,979 INFO L226 Difference]: Without dead ends: 223 [2024-10-31 22:03:04,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-10-31 22:03:04,980 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 296 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 22:03:04,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 120 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 22:03:04,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-10-31 22:03:04,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 167. [2024-10-31 22:03:04,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 146 states have (on average 1.1232876712328768) internal successors, (164), 161 states have internal predecessors, (164), 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) [2024-10-31 22:03:04,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 172 transitions. [2024-10-31 22:03:04,991 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 172 transitions. Word has length 78 [2024-10-31 22:03:04,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:03:04,992 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 172 transitions. [2024-10-31 22:03:04,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 19.428571428571427) internal successors, (136), 8 states have internal predecessors, (136), 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) [2024-10-31 22:03:04,992 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 172 transitions. [2024-10-31 22:03:04,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-31 22:03:04,994 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:04,994 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:05,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-31 22:03:05,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-31 22:03:05,195 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-10-31 22:03:05,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:05,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1015181436, now seen corresponding path program 1 times [2024-10-31 22:03:05,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:05,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106959450] [2024-10-31 22:03:05,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:05,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:03:05,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293135598] [2024-10-31 22:03:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:05,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:03:05,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:05,226 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:03:05,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a08d81ca-c7da-45bf-b5aa-8080cdf615b8/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 22:03:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:05,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:03:05,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:03:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:05,613 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:03:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:03:06,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:06,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106959450] [2024-10-31 22:03:06,283 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-31 22:03:06,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293135598] [2024-10-31 22:03:06,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293135598] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:03:06,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-31 22:03:06,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2024-10-31 22:03:06,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129212671] [2024-10-31 22:03:06,284 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-31 22:03:06,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-31 22:03:06,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:06,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-31 22:03:06,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-10-31 22:03:06,286 INFO L87 Difference]: Start difference. First operand 167 states and 172 transitions. Second operand has 11 states, 10 states have (on average 14.4) internal successors, (144), 11 states have internal predecessors, (144), 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) [2024-10-31 22:03:10,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-31 22:03:14,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-31 22:03:18,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-10-31 22:03:20,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []