./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ --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 a70bdaebce973cfb63a6da68866c665cdef037b6b862a38db5ed10fbf681a6e5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:43:59,702 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:43:59,847 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 21:43:59,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:43:59,858 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:43:59,903 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:43:59,904 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:43:59,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:43:59,906 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:43:59,913 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:43:59,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:43:59,915 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:43:59,916 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:43:59,918 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:43:59,919 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:43:59,919 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:43:59,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:43:59,920 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:43:59,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:43:59,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:43:59,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:43:59,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:43:59,923 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:43:59,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:43:59,924 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:43:59,924 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:43:59,924 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:43:59,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:43:59,925 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:43:59,926 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:43:59,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:43:59,928 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:43:59,928 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:43:59,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:43:59,929 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:43:59,929 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:43:59,929 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:43:59,930 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:43:59,930 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:43:59,930 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:43:59,930 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:43:59,931 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:43:59,931 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:43:59,931 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:43:59,932 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_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a70bdaebce973cfb63a6da68866c665cdef037b6b862a38db5ed10fbf681a6e5 [2023-11-23 21:44:00,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:44:00,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:44:00,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:44:00,264 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:44:00,264 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:44:00,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound50.c [2023-11-23 21:44:03,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:44:03,764 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:44:03,765 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_unwindbound50.c [2023-11-23 21:44:03,776 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/data/2f4d251bb/4b44039d4b384ae98372dac5864f97a0/FLAGcaaaa408a [2023-11-23 21:44:03,793 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/data/2f4d251bb/4b44039d4b384ae98372dac5864f97a0 [2023-11-23 21:44:03,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:44:03,798 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:44:03,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:44:03,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:44:03,805 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:44:03,806 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:44:03" (1/1) ... [2023-11-23 21:44:03,807 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e897596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:03, skipping insertion in model container [2023-11-23 21:44:03,808 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:44:03" (1/1) ... [2023-11-23 21:44:03,831 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:44:04,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:44:04,036 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:44:04,077 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:44:04,102 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:44:04,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04 WrapperNode [2023-11-23 21:44:04,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:44:04,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:44:04,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:44:04,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:44:04,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,138 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,188 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 135 [2023-11-23 21:44:04,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:44:04,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:44:04,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:44:04,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:44:04,213 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,226 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,245 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:44:04,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,275 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,276 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:44:04,286 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:44:04,287 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:44:04,287 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:44:04,288 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (1/1) ... [2023-11-23 21:44:04,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:44:04,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:04,323 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:44:04,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:44:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:44:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:44:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:44:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:44:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:44:04,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:44:04,448 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:44:04,452 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:44:05,252 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:44:05,289 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:44:05,289 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:44:05,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:44:05 BoogieIcfgContainer [2023-11-23 21:44:05,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:44:05,293 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:44:05,293 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:44:05,297 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:44:05,297 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:44:03" (1/3) ... [2023-11-23 21:44:05,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e3d83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:44:05, skipping insertion in model container [2023-11-23 21:44:05,299 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:44:04" (2/3) ... [2023-11-23 21:44:05,299 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e3d83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:44:05, skipping insertion in model container [2023-11-23 21:44:05,300 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:44:05" (3/3) ... [2023-11-23 21:44:05,301 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_unwindbound50.c [2023-11-23 21:44:05,323 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:44:05,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2023-11-23 21:44:05,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:44:05,445 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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;@284e4842, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:44:05,446 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2023-11-23 21:44:05,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 96 states have (on average 1.9479166666666667) internal successors, (187), 182 states have internal predecessors, (187), 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) [2023-11-23 21:44:05,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 21:44:05,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:05,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 21:44:05,466 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:05,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:05,475 INFO L85 PathProgramCache]: Analyzing trace with hash 238429960, now seen corresponding path program 1 times [2023-11-23 21:44:05,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:05,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147800441] [2023-11-23 21:44:05,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:05,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:05,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:05,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147800441] [2023-11-23 21:44:05,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147800441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:05,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:05,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:44:05,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401137582] [2023-11-23 21:44:05,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:05,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:44:05,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:05,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:44:05,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:44:05,681 INFO L87 Difference]: Start difference. First operand has 187 states, 96 states have (on average 1.9479166666666667) internal successors, (187), 182 states have internal predecessors, (187), 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 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:05,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:05,760 INFO L93 Difference]: Finished difference Result 359 states and 386 transitions. [2023-11-23 21:44:05,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:44:05,763 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-23 21:44:05,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:05,773 INFO L225 Difference]: With dead ends: 359 [2023-11-23 21:44:05,774 INFO L226 Difference]: Without dead ends: 171 [2023-11-23 21:44:05,779 INFO L412 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 [2023-11-23 21:44:05,786 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:05,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 175 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:44:05,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-11-23 21:44:05,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-11-23 21:44:05,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 95 states have (on average 1.7789473684210526) internal successors, (169), 167 states have internal predecessors, (169), 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) [2023-11-23 21:44:05,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 173 transitions. [2023-11-23 21:44:05,872 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 173 transitions. Word has length 5 [2023-11-23 21:44:05,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:05,873 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 173 transitions. [2023-11-23 21:44:05,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:05,873 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 173 transitions. [2023-11-23 21:44:05,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 21:44:05,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:05,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 21:44:05,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:44:05,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:05,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:05,876 INFO L85 PathProgramCache]: Analyzing trace with hash 238486053, now seen corresponding path program 1 times [2023-11-23 21:44:05,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:05,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630702961] [2023-11-23 21:44:05,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:05,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:05,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:06,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:06,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:06,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630702961] [2023-11-23 21:44:06,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630702961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:06,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:06,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:44:06,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492033363] [2023-11-23 21:44:06,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:06,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:44:06,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:06,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:44:06,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:06,053 INFO L87 Difference]: Start difference. First operand 171 states and 173 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:06,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:06,115 INFO L93 Difference]: Finished difference Result 252 states and 254 transitions. [2023-11-23 21:44:06,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:44:06,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-23 21:44:06,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:06,118 INFO L225 Difference]: With dead ends: 252 [2023-11-23 21:44:06,118 INFO L226 Difference]: Without dead ends: 175 [2023-11-23 21:44:06,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:44:06,121 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 4 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:06,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 500 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:44:06,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2023-11-23 21:44:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2023-11-23 21:44:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 99 states have (on average 1.7474747474747474) internal successors, (173), 171 states have internal predecessors, (173), 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) [2023-11-23 21:44:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 177 transitions. [2023-11-23 21:44:06,136 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 177 transitions. Word has length 5 [2023-11-23 21:44:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:06,137 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 177 transitions. [2023-11-23 21:44:06,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 177 transitions. [2023-11-23 21:44:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 21:44:06,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:06,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:06,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:44:06,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:06,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:06,139 INFO L85 PathProgramCache]: Analyzing trace with hash 862145165, now seen corresponding path program 1 times [2023-11-23 21:44:06,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:06,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36358214] [2023-11-23 21:44:06,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:06,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:06,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:06,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36358214] [2023-11-23 21:44:06,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36358214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:06,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:06,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:44:06,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138275719] [2023-11-23 21:44:06,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:06,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:44:06,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:06,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:44:06,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:44:06,188 INFO L87 Difference]: Start difference. First operand 175 states and 177 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:06,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:06,670 INFO L93 Difference]: Finished difference Result 319 states and 323 transitions. [2023-11-23 21:44:06,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:44:06,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-23 21:44:06,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:06,678 INFO L225 Difference]: With dead ends: 319 [2023-11-23 21:44:06,679 INFO L226 Difference]: Without dead ends: 263 [2023-11-23 21:44:06,682 INFO L412 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 [2023-11-23 21:44:06,687 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 90 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:06,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 124 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:44:06,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-11-23 21:44:06,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 249. [2023-11-23 21:44:06,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 172 states have (on average 1.5116279069767442) internal successors, (260), 244 states have internal predecessors, (260), 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) [2023-11-23 21:44:06,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 266 transitions. [2023-11-23 21:44:06,724 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 266 transitions. Word has length 8 [2023-11-23 21:44:06,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:06,725 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 266 transitions. [2023-11-23 21:44:06,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:06,725 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 266 transitions. [2023-11-23 21:44:06,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 21:44:06,726 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:06,726 INFO L195 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] [2023-11-23 21:44:06,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:44:06,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:06,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:06,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1590441751, now seen corresponding path program 1 times [2023-11-23 21:44:06,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:06,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502026163] [2023-11-23 21:44:06,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:06,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:06,761 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:06,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005423838] [2023-11-23 21:44:06,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:06,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:06,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:06,765 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:06,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:44:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:06,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:44:06,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:06,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:06,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:06,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502026163] [2023-11-23 21:44:06,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:06,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005423838] [2023-11-23 21:44:06,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005423838] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:06,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:06,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:44:06,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349132958] [2023-11-23 21:44:06,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:06,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:44:06,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:06,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:44:06,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:44:06,916 INFO L87 Difference]: Start difference. First operand 249 states and 266 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:06,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:06,967 INFO L93 Difference]: Finished difference Result 249 states and 266 transitions. [2023-11-23 21:44:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:44:06,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2023-11-23 21:44:06,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:06,970 INFO L225 Difference]: With dead ends: 249 [2023-11-23 21:44:06,970 INFO L226 Difference]: Without dead ends: 246 [2023-11-23 21:44:06,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:44:06,972 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 127 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:06,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 150 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:44:06,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-11-23 21:44:06,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2023-11-23 21:44:06,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 172 states have (on average 1.4825581395348837) internal successors, (255), 241 states have internal predecessors, (255), 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) [2023-11-23 21:44:06,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 261 transitions. [2023-11-23 21:44:06,990 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 261 transitions. Word has length 36 [2023-11-23 21:44:06,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:06,990 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 261 transitions. [2023-11-23 21:44:06,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:06,991 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 261 transitions. [2023-11-23 21:44:06,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-23 21:44:06,992 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:06,992 INFO L195 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] [2023-11-23 21:44:07,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 21:44:07,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:07,206 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:07,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:07,207 INFO L85 PathProgramCache]: Analyzing trace with hash -2059053912, now seen corresponding path program 1 times [2023-11-23 21:44:07,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:07,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293105088] [2023-11-23 21:44:07,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:07,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:07,223 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:07,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2084105575] [2023-11-23 21:44:07,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:07,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:07,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:07,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:07,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:44:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:07,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:44:07,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:07,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:07,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:07,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:07,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293105088] [2023-11-23 21:44:07,346 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:07,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084105575] [2023-11-23 21:44:07,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084105575] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:07,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:07,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:44:07,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175488374] [2023-11-23 21:44:07,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:07,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:44:07,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:07,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:44:07,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:44:07,350 INFO L87 Difference]: Start difference. First operand 246 states and 261 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:07,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:07,449 INFO L93 Difference]: Finished difference Result 271 states and 274 transitions. [2023-11-23 21:44:07,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:44:07,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2023-11-23 21:44:07,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:07,454 INFO L225 Difference]: With dead ends: 271 [2023-11-23 21:44:07,454 INFO L226 Difference]: Without dead ends: 269 [2023-11-23 21:44:07,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:44:07,457 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 66 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:07,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 290 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:44:07,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-23 21:44:07,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 246. [2023-11-23 21:44:07,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 172 states have (on average 1.4709302325581395) internal successors, (253), 241 states have internal predecessors, (253), 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) [2023-11-23 21:44:07,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 259 transitions. [2023-11-23 21:44:07,482 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 259 transitions. Word has length 37 [2023-11-23 21:44:07,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:07,483 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 259 transitions. [2023-11-23 21:44:07,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:07,484 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 259 transitions. [2023-11-23 21:44:07,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-23 21:44:07,488 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:07,489 INFO L195 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] [2023-11-23 21:44:07,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-23 21:44:07,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:07,706 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:07,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:07,706 INFO L85 PathProgramCache]: Analyzing trace with hash 593838283, now seen corresponding path program 1 times [2023-11-23 21:44:07,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:07,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605670731] [2023-11-23 21:44:07,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:07,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:07,730 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:07,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [649643456] [2023-11-23 21:44:07,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:07,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:07,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:07,741 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:07,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:44:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:07,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:44:07,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:07,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:07,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:07,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:07,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605670731] [2023-11-23 21:44:07,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:07,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649643456] [2023-11-23 21:44:07,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649643456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:07,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:07,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:44:07,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372875123] [2023-11-23 21:44:07,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:07,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:44:07,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:07,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:44:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:07,933 INFO L87 Difference]: Start difference. First operand 246 states and 259 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:08,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:08,161 INFO L93 Difference]: Finished difference Result 269 states and 272 transitions. [2023-11-23 21:44:08,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:44:08,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 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 38 [2023-11-23 21:44:08,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:08,164 INFO L225 Difference]: With dead ends: 269 [2023-11-23 21:44:08,164 INFO L226 Difference]: Without dead ends: 264 [2023-11-23 21:44:08,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:08,166 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 149 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:08,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 227 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:44:08,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-11-23 21:44:08,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 249. [2023-11-23 21:44:08,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 175 states have (on average 1.4457142857142857) internal successors, (253), 244 states have internal predecessors, (253), 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) [2023-11-23 21:44:08,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 259 transitions. [2023-11-23 21:44:08,178 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 259 transitions. Word has length 38 [2023-11-23 21:44:08,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:08,178 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 259 transitions. [2023-11-23 21:44:08,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:08,179 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 259 transitions. [2023-11-23 21:44:08,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-23 21:44:08,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:08,180 INFO L195 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] [2023-11-23 21:44:08,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:08,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 21:44:08,401 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:08,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:08,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1229117706, now seen corresponding path program 1 times [2023-11-23 21:44:08,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:08,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400595322] [2023-11-23 21:44:08,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:08,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:08,414 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:08,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1975480130] [2023-11-23 21:44:08,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:08,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:08,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:08,421 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:08,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:44:08,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:08,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:44:08,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:08,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:08,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:08,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:08,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400595322] [2023-11-23 21:44:08,632 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:08,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975480130] [2023-11-23 21:44:08,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975480130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:08,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:08,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:44:08,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843048516] [2023-11-23 21:44:08,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:08,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:44:08,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:08,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:44:08,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:08,635 INFO L87 Difference]: Start difference. First operand 249 states and 259 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:08,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:08,973 INFO L93 Difference]: Finished difference Result 264 states and 277 transitions. [2023-11-23 21:44:08,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:44:08,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 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 39 [2023-11-23 21:44:08,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:08,976 INFO L225 Difference]: With dead ends: 264 [2023-11-23 21:44:08,976 INFO L226 Difference]: Without dead ends: 210 [2023-11-23 21:44:08,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:08,977 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:08,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 67 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:44:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-23 21:44:08,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 208. [2023-11-23 21:44:08,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 151 states have (on average 1.4105960264900663) internal successors, (213), 203 states have internal predecessors, (213), 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) [2023-11-23 21:44:08,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 219 transitions. [2023-11-23 21:44:08,992 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 219 transitions. Word has length 39 [2023-11-23 21:44:08,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:08,993 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 219 transitions. [2023-11-23 21:44:08,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:44:08,993 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 219 transitions. [2023-11-23 21:44:08,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-23 21:44:08,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:08,995 INFO L195 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, 1, 1, 1, 1, 1] [2023-11-23 21:44:09,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:09,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:09,202 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:09,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:09,202 INFO L85 PathProgramCache]: Analyzing trace with hash -396838182, now seen corresponding path program 1 times [2023-11-23 21:44:09,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:09,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591599035] [2023-11-23 21:44:09,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:09,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:09,222 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:09,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053705868] [2023-11-23 21:44:09,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:09,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:09,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:09,224 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:09,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 21:44:09,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:09,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:44:09,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:09,394 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:09,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:09,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591599035] [2023-11-23 21:44:09,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:09,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053705868] [2023-11-23 21:44:09,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053705868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:09,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:09,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:44:09,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064606724] [2023-11-23 21:44:09,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:09,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:44:09,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:09,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:44:09,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:44:09,405 INFO L87 Difference]: Start difference. First operand 208 states and 219 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-11-23 21:44:09,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:09,422 INFO L93 Difference]: Finished difference Result 208 states and 219 transitions. [2023-11-23 21:44:09,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:44:09,423 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 48 [2023-11-23 21:44:09,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:09,425 INFO L225 Difference]: With dead ends: 208 [2023-11-23 21:44:09,425 INFO L226 Difference]: Without dead ends: 207 [2023-11-23 21:44:09,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:44:09,428 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 102 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:09,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 152 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:44:09,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-23 21:44:09,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2023-11-23 21:44:09,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 151 states have (on average 1.3973509933774835) internal successors, (211), 202 states have internal predecessors, (211), 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) [2023-11-23 21:44:09,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 217 transitions. [2023-11-23 21:44:09,445 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 217 transitions. Word has length 48 [2023-11-23 21:44:09,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:09,449 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 217 transitions. [2023-11-23 21:44:09,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-11-23 21:44:09,449 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 217 transitions. [2023-11-23 21:44:09,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-23 21:44:09,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:09,458 INFO L195 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, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:09,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-23 21:44:09,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:09,682 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:09,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:09,682 INFO L85 PathProgramCache]: Analyzing trace with hash 582918377, now seen corresponding path program 1 times [2023-11-23 21:44:09,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:09,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115544237] [2023-11-23 21:44:09,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:09,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:09,703 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:09,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453484831] [2023-11-23 21:44:09,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:09,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:09,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:09,711 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:09,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 21:44:09,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:09,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:44:09,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:09,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:09,866 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:09,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:09,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115544237] [2023-11-23 21:44:09,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:09,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453484831] [2023-11-23 21:44:09,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453484831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:09,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:09,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:44:09,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511433779] [2023-11-23 21:44:09,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:09,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:44:09,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:09,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:44:09,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:44:09,871 INFO L87 Difference]: Start difference. First operand 207 states and 217 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-23 21:44:09,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:09,891 INFO L93 Difference]: Finished difference Result 208 states and 217 transitions. [2023-11-23 21:44:09,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:44:09,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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 49 [2023-11-23 21:44:09,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:09,894 INFO L225 Difference]: With dead ends: 208 [2023-11-23 21:44:09,894 INFO L226 Difference]: Without dead ends: 207 [2023-11-23 21:44:09,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:44:09,897 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:09,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 293 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:44:09,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-23 21:44:09,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2023-11-23 21:44:09,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 151 states have (on average 1.390728476821192) internal successors, (210), 202 states have internal predecessors, (210), 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) [2023-11-23 21:44:09,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 216 transitions. [2023-11-23 21:44:09,909 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 216 transitions. Word has length 49 [2023-11-23 21:44:09,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:09,912 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 216 transitions. [2023-11-23 21:44:09,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-11-23 21:44:09,912 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 216 transitions. [2023-11-23 21:44:09,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-23 21:44:09,913 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:09,913 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:09,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:10,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:10,130 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:10,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:10,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1870693805, now seen corresponding path program 1 times [2023-11-23 21:44:10,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:10,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654264844] [2023-11-23 21:44:10,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:10,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:10,143 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:10,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1351051434] [2023-11-23 21:44:10,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:10,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:10,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:10,145 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:10,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-23 21:44:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:10,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:44:10,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:10,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:10,280 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:10,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:10,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654264844] [2023-11-23 21:44:10,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:10,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351051434] [2023-11-23 21:44:10,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351051434] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:10,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:10,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:44:10,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677035319] [2023-11-23 21:44:10,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:10,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:44:10,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:10,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:44:10,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:10,284 INFO L87 Difference]: Start difference. First operand 207 states and 216 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 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) [2023-11-23 21:44:10,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:10,686 INFO L93 Difference]: Finished difference Result 356 states and 372 transitions. [2023-11-23 21:44:10,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:44:10,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 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 [2023-11-23 21:44:10,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:10,689 INFO L225 Difference]: With dead ends: 356 [2023-11-23 21:44:10,689 INFO L226 Difference]: Without dead ends: 315 [2023-11-23 21:44:10,689 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:10,690 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 100 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:10,690 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 129 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:44:10,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-23 21:44:10,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 292. [2023-11-23 21:44:10,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 234 states have (on average 1.3034188034188035) internal successors, (305), 285 states have internal predecessors, (305), 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) [2023-11-23 21:44:10,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 315 transitions. [2023-11-23 21:44:10,706 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 315 transitions. Word has length 53 [2023-11-23 21:44:10,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:10,707 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 315 transitions. [2023-11-23 21:44:10,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 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) [2023-11-23 21:44:10,707 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 315 transitions. [2023-11-23 21:44:10,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-23 21:44:10,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:10,708 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:10,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:10,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-23 21:44:10,929 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:10,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:10,930 INFO L85 PathProgramCache]: Analyzing trace with hash 614294739, now seen corresponding path program 1 times [2023-11-23 21:44:10,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:10,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927195842] [2023-11-23 21:44:10,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:10,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:10,953 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:10,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982916685] [2023-11-23 21:44:10,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:10,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:10,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:10,960 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:10,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-23 21:44:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:11,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:44:11,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:11,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:11,111 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:11,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:11,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927195842] [2023-11-23 21:44:11,111 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:11,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982916685] [2023-11-23 21:44:11,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982916685] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:11,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:11,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:44:11,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088453743] [2023-11-23 21:44:11,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:11,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:44:11,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:11,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:44:11,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:11,114 INFO L87 Difference]: Start difference. First operand 292 states and 315 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2023-11-23 21:44:11,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:11,212 INFO L93 Difference]: Finished difference Result 293 states and 315 transitions. [2023-11-23 21:44:11,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:44:11,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 59 [2023-11-23 21:44:11,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:11,215 INFO L225 Difference]: With dead ends: 293 [2023-11-23 21:44:11,215 INFO L226 Difference]: Without dead ends: 292 [2023-11-23 21:44:11,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:44:11,217 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 42 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:11,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 242 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:44:11,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-23 21:44:11,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2023-11-23 21:44:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 234 states have (on average 1.2991452991452992) internal successors, (304), 285 states have internal predecessors, (304), 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) [2023-11-23 21:44:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 314 transitions. [2023-11-23 21:44:11,232 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 314 transitions. Word has length 59 [2023-11-23 21:44:11,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:11,232 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 314 transitions. [2023-11-23 21:44:11,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2023-11-23 21:44:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 314 transitions. [2023-11-23 21:44:11,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 21:44:11,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:11,234 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:11,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:11,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-23 21:44:11,449 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:11,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:11,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1926726037, now seen corresponding path program 1 times [2023-11-23 21:44:11,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:11,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170783519] [2023-11-23 21:44:11,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:11,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:11,462 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:11,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1613019504] [2023-11-23 21:44:11,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:11,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:11,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:11,464 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:11,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-23 21:44:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:11,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:44:11,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:11,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:11,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:11,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:11,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170783519] [2023-11-23 21:44:11,673 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:11,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613019504] [2023-11-23 21:44:11,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613019504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:11,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:11,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:44:11,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646192679] [2023-11-23 21:44:11,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:11,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:44:11,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:11,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:44:11,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:44:11,676 INFO L87 Difference]: Start difference. First operand 292 states and 314 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2023-11-23 21:44:11,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:11,704 INFO L93 Difference]: Finished difference Result 292 states and 314 transitions. [2023-11-23 21:44:11,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:44:11,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 61 [2023-11-23 21:44:11,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:11,707 INFO L225 Difference]: With dead ends: 292 [2023-11-23 21:44:11,707 INFO L226 Difference]: Without dead ends: 291 [2023-11-23 21:44:11,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:44:11,708 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 101 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 288 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 [2023-11-23 21:44:11,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 288 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:44:11,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-11-23 21:44:11,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2023-11-23 21:44:11,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 234 states have (on average 1.2905982905982907) internal successors, (302), 284 states have internal predecessors, (302), 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) [2023-11-23 21:44:11,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 312 transitions. [2023-11-23 21:44:11,723 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 312 transitions. Word has length 61 [2023-11-23 21:44:11,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:11,724 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 312 transitions. [2023-11-23 21:44:11,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2023-11-23 21:44:11,724 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 312 transitions. [2023-11-23 21:44:11,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-23 21:44:11,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:11,725 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-11-23 21:44:11,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:11,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:11,946 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:11,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:11,946 INFO L85 PathProgramCache]: Analyzing trace with hash -401034949, now seen corresponding path program 1 times [2023-11-23 21:44:11,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:11,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87570586] [2023-11-23 21:44:11,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:11,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:11,959 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:11,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1751398286] [2023-11-23 21:44:11,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:11,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:11,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:11,963 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:11,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-23 21:44:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:12,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:44:12,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:12,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:12,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:12,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:12,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87570586] [2023-11-23 21:44:12,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:12,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751398286] [2023-11-23 21:44:12,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751398286] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:12,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:12,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:44:12,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954023814] [2023-11-23 21:44:12,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:12,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:44:12,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:12,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:44:12,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:44:12,117 INFO L87 Difference]: Start difference. First operand 291 states and 312 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2023-11-23 21:44:12,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:12,170 INFO L93 Difference]: Finished difference Result 381 states and 401 transitions. [2023-11-23 21:44:12,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:44:12,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 62 [2023-11-23 21:44:12,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:12,173 INFO L225 Difference]: With dead ends: 381 [2023-11-23 21:44:12,174 INFO L226 Difference]: Without dead ends: 380 [2023-11-23 21:44:12,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:44:12,175 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 93 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:12,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 670 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:44:12,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-11-23 21:44:12,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 354. [2023-11-23 21:44:12,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 295 states have (on average 1.2745762711864406) internal successors, (376), 346 states have internal predecessors, (376), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-23 21:44:12,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 390 transitions. [2023-11-23 21:44:12,195 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 390 transitions. Word has length 62 [2023-11-23 21:44:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:12,196 INFO L495 AbstractCegarLoop]: Abstraction has 354 states and 390 transitions. [2023-11-23 21:44:12,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2023-11-23 21:44:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 390 transitions. [2023-11-23 21:44:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 21:44:12,197 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:12,197 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:12,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:12,418 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-23 21:44:12,418 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr77ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:12,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:12,418 INFO L85 PathProgramCache]: Analyzing trace with hash -403941130, now seen corresponding path program 1 times [2023-11-23 21:44:12,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:12,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049495662] [2023-11-23 21:44:12,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:12,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:12,434 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:12,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2143164581] [2023-11-23 21:44:12,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:12,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:12,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:12,437 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:12,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-23 21:44:12,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:12,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:44:12,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:12,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:12,610 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:12,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:12,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049495662] [2023-11-23 21:44:12,747 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:12,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143164581] [2023-11-23 21:44:12,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143164581] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:12,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:44:12,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-23 21:44:12,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406471998] [2023-11-23 21:44:12,748 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:12,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:44:12,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:12,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:44:12,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:44:12,751 INFO L87 Difference]: Start difference. First operand 354 states and 390 transitions. Second operand has 10 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:44:12,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:12,920 INFO L93 Difference]: Finished difference Result 599 states and 627 transitions. [2023-11-23 21:44:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 21:44:12,921 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 93 [2023-11-23 21:44:12,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:12,926 INFO L225 Difference]: With dead ends: 599 [2023-11-23 21:44:12,926 INFO L226 Difference]: Without dead ends: 496 [2023-11-23 21:44:12,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2023-11-23 21:44:12,929 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 212 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:12,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 743 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:44:12,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2023-11-23 21:44:12,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 431. [2023-11-23 21:44:12,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 368 states have (on average 1.3451086956521738) internal successors, (495), 419 states have internal predecessors, (495), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:44:12,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 511 transitions. [2023-11-23 21:44:12,957 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 511 transitions. Word has length 93 [2023-11-23 21:44:12,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:12,958 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 511 transitions. [2023-11-23 21:44:12,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.2) internal successors, (152), 10 states have internal predecessors, (152), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:44:12,958 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 511 transitions. [2023-11-23 21:44:12,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 21:44:12,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:12,962 INFO L195 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, 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] [2023-11-23 21:44:12,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:13,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-23 21:44:13,178 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:13,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:13,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2123109400, now seen corresponding path program 1 times [2023-11-23 21:44:13,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:13,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065670592] [2023-11-23 21:44:13,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:13,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:13,203 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:13,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [579366509] [2023-11-23 21:44:13,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:13,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:13,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:13,205 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:13,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-23 21:44:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:13,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:44:13,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:13,578 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:13,578 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:13,870 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:13,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:13,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065670592] [2023-11-23 21:44:13,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:13,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579366509] [2023-11-23 21:44:13,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579366509] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:13,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:44:13,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 21:44:13,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535304480] [2023-11-23 21:44:13,872 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:13,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:44:13,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:13,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:44:13,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:44:13,875 INFO L87 Difference]: Start difference. First operand 431 states and 511 transitions. Second operand has 8 states, 7 states have (on average 25.285714285714285) internal successors, (177), 8 states have internal predecessors, (177), 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) [2023-11-23 21:44:14,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:14,742 INFO L93 Difference]: Finished difference Result 476 states and 511 transitions. [2023-11-23 21:44:14,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:44:14,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 25.285714285714285) internal successors, (177), 8 states have internal predecessors, (177), 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 93 [2023-11-23 21:44:14,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:14,746 INFO L225 Difference]: With dead ends: 476 [2023-11-23 21:44:14,746 INFO L226 Difference]: Without dead ends: 469 [2023-11-23 21:44:14,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:44:14,747 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 288 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:14,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 335 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:44:14,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-11-23 21:44:14,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 431. [2023-11-23 21:44:14,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 368 states have (on average 1.3179347826086956) internal successors, (485), 419 states have internal predecessors, (485), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:44:14,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 501 transitions. [2023-11-23 21:44:14,773 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 501 transitions. Word has length 93 [2023-11-23 21:44:14,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:14,774 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 501 transitions. [2023-11-23 21:44:14,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 25.285714285714285) internal successors, (177), 8 states have internal predecessors, (177), 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) [2023-11-23 21:44:14,774 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 501 transitions. [2023-11-23 21:44:14,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-23 21:44:14,775 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:14,775 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:14,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:14,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:14,985 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:14,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:14,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1391882075, now seen corresponding path program 1 times [2023-11-23 21:44:14,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:14,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174894962] [2023-11-23 21:44:14,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:14,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:15,016 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:15,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275371103] [2023-11-23 21:44:15,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:15,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:15,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:15,021 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:15,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-23 21:44:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:15,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:44:15,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:15,419 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:15,419 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:16,440 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:44:16,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:16,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174894962] [2023-11-23 21:44:16,441 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:16,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275371103] [2023-11-23 21:44:16,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275371103] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:16,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:44:16,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 8 [2023-11-23 21:44:16,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695039992] [2023-11-23 21:44:16,442 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:16,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 21:44:16,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:16,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 21:44:16,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:44:16,445 INFO L87 Difference]: Start difference. First operand 431 states and 501 transitions. Second operand has 9 states, 8 states have (on average 22.375) internal successors, (179), 9 states have internal predecessors, (179), 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) [2023-11-23 21:44:19,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-23 21:44:21,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-23 21:44:23,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-23 21:44:26,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-23 21:44:27,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-23 21:44:29,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-23 21:44:32,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-23 21:44:34,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-23 21:44:36,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2023-11-23 21:44:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:36,153 INFO L93 Difference]: Finished difference Result 445 states and 501 transitions. [2023-11-23 21:44:36,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-23 21:44:36,154 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 22.375) internal successors, (179), 9 states have internal predecessors, (179), 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 94 [2023-11-23 21:44:36,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:36,157 INFO L225 Difference]: With dead ends: 445 [2023-11-23 21:44:36,157 INFO L226 Difference]: Without dead ends: 441 [2023-11-23 21:44:36,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=73, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:44:36,158 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 433 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 67 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:36,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 105 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 658 Invalid, 8 Unknown, 0 Unchecked, 19.5s Time] [2023-11-23 21:44:36,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2023-11-23 21:44:36,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 429. [2023-11-23 21:44:36,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 368 states have (on average 1.2934782608695652) internal successors, (476), 417 states have internal predecessors, (476), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:44:36,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 492 transitions. [2023-11-23 21:44:36,184 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 492 transitions. Word has length 94 [2023-11-23 21:44:36,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:36,184 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 492 transitions. [2023-11-23 21:44:36,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 22.375) internal successors, (179), 9 states have internal predecessors, (179), 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) [2023-11-23 21:44:36,185 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 492 transitions. [2023-11-23 21:44:36,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-23 21:44:36,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:36,186 INFO L195 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:36,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:36,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:36,408 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:36,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:36,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2117187673, now seen corresponding path program 1 times [2023-11-23 21:44:36,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:36,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171878215] [2023-11-23 21:44:36,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:36,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:36,437 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:36,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234073080] [2023-11-23 21:44:36,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:36,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:36,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:36,439 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:36,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-23 21:44:36,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:36,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:44:36,510 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:44:36,659 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:36,833 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:44:36,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:36,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171878215] [2023-11-23 21:44:36,834 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:36,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234073080] [2023-11-23 21:44:36,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [234073080] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:36,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:44:36,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-23 21:44:36,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712978021] [2023-11-23 21:44:36,835 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:36,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:44:36,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:36,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:44:36,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:44:36,838 INFO L87 Difference]: Start difference. First operand 429 states and 492 transitions. Second operand has 6 states, 5 states have (on average 38.2) internal successors, (191), 6 states have internal predecessors, (191), 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) [2023-11-23 21:44:36,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:36,916 INFO L93 Difference]: Finished difference Result 592 states and 615 transitions. [2023-11-23 21:44:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:44:36,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 38.2) internal successors, (191), 6 states have internal predecessors, (191), 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 105 [2023-11-23 21:44:36,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:36,922 INFO L225 Difference]: With dead ends: 592 [2023-11-23 21:44:36,922 INFO L226 Difference]: Without dead ends: 591 [2023-11-23 21:44:36,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:44:36,924 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 203 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:36,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 668 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:44:36,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-11-23 21:44:36,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 467. [2023-11-23 21:44:36,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 405 states have (on average 1.3111111111111111) internal successors, (531), 454 states have internal predecessors, (531), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:44:36,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 549 transitions. [2023-11-23 21:44:36,968 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 549 transitions. Word has length 105 [2023-11-23 21:44:36,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:36,969 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 549 transitions. [2023-11-23 21:44:36,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 38.2) internal successors, (191), 6 states have internal predecessors, (191), 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) [2023-11-23 21:44:36,969 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 549 transitions. [2023-11-23 21:44:36,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-23 21:44:36,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:36,972 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 21:44:36,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:37,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-23 21:44:37,193 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:37,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:37,194 INFO L85 PathProgramCache]: Analyzing trace with hash -6393939, now seen corresponding path program 1 times [2023-11-23 21:44:37,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:37,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061123117] [2023-11-23 21:44:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:37,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:37,213 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:37,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [739335202] [2023-11-23 21:44:37,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:37,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:37,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:37,215 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:37,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-23 21:44:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:37,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:44:37,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:37,455 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:44:37,455 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:44:37,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:37,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061123117] [2023-11-23 21:44:37,458 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:37,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739335202] [2023-11-23 21:44:37,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739335202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:44:37,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:44:37,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:44:37,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742868146] [2023-11-23 21:44:37,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:44:37,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:44:37,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:37,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:44:37,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:44:37,462 INFO L87 Difference]: Start difference. First operand 467 states and 549 transitions. Second operand has 5 states, 4 states have (on average 28.25) internal successors, (113), 5 states have internal predecessors, (113), 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) [2023-11-23 21:44:37,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:37,829 INFO L93 Difference]: Finished difference Result 469 states and 549 transitions. [2023-11-23 21:44:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:44:37,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 28.25) internal successors, (113), 5 states have internal predecessors, (113), 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 120 [2023-11-23 21:44:37,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:37,833 INFO L225 Difference]: With dead ends: 469 [2023-11-23 21:44:37,834 INFO L226 Difference]: Without dead ends: 449 [2023-11-23 21:44:37,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:44:37,835 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 245 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:37,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 81 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:44:37,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2023-11-23 21:44:37,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 447. [2023-11-23 21:44:37,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 405 states have (on average 1.1679012345679012) internal successors, (473), 434 states have internal predecessors, (473), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:44:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 491 transitions. [2023-11-23 21:44:37,860 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 491 transitions. Word has length 120 [2023-11-23 21:44:37,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:37,861 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 491 transitions. [2023-11-23 21:44:37,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 28.25) internal successors, (113), 5 states have internal predecessors, (113), 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) [2023-11-23 21:44:37,861 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 491 transitions. [2023-11-23 21:44:37,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-23 21:44:37,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:37,863 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 21:44:37,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:38,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-23 21:44:38,082 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:38,082 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:38,082 INFO L85 PathProgramCache]: Analyzing trace with hash -198212052, now seen corresponding path program 1 times [2023-11-23 21:44:38,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:38,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998663317] [2023-11-23 21:44:38,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:38,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:38,104 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:38,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438432320] [2023-11-23 21:44:38,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:38,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:38,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:38,106 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:38,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-23 21:44:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:38,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-23 21:44:38,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:38,332 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:44:38,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:38,524 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:44:38,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:38,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998663317] [2023-11-23 21:44:38,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:38,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438432320] [2023-11-23 21:44:38,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438432320] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:38,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:44:38,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 21:44:38,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936109845] [2023-11-23 21:44:38,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:38,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:44:38,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:38,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:44:38,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:44:38,556 INFO L87 Difference]: Start difference. First operand 447 states and 491 transitions. Second operand has 8 states, 7 states have (on average 31.857142857142858) internal successors, (223), 8 states have internal predecessors, (223), 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) [2023-11-23 21:44:39,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:39,015 INFO L93 Difference]: Finished difference Result 471 states and 497 transitions. [2023-11-23 21:44:39,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:44:39,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 31.857142857142858) internal successors, (223), 8 states have internal predecessors, (223), 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 121 [2023-11-23 21:44:39,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:39,019 INFO L225 Difference]: With dead ends: 471 [2023-11-23 21:44:39,019 INFO L226 Difference]: Without dead ends: 467 [2023-11-23 21:44:39,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:44:39,020 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 338 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:39,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 82 Invalid, 429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:44:39,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-11-23 21:44:39,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 445. [2023-11-23 21:44:39,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 405 states have (on average 1.1530864197530863) internal successors, (467), 432 states have internal predecessors, (467), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:44:39,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 485 transitions. [2023-11-23 21:44:39,045 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 485 transitions. Word has length 121 [2023-11-23 21:44:39,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:39,046 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 485 transitions. [2023-11-23 21:44:39,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 31.857142857142858) internal successors, (223), 8 states have internal predecessors, (223), 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) [2023-11-23 21:44:39,046 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 485 transitions. [2023-11-23 21:44:39,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-23 21:44:39,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:39,049 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 21:44:39,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:39,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:39,269 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:39,269 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:39,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1503219058, now seen corresponding path program 1 times [2023-11-23 21:44:39,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:39,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985069134] [2023-11-23 21:44:39,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:39,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:39,289 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:39,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1472188225] [2023-11-23 21:44:39,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:39,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:39,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:39,290 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:39,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-23 21:44:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:39,360 INFO L262 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 21:44:39,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:44:39,505 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:44:39,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:39,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985069134] [2023-11-23 21:44:39,779 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:39,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472188225] [2023-11-23 21:44:39,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472188225] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:39,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:44:39,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-23 21:44:39,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888798300] [2023-11-23 21:44:39,780 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:39,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 21:44:39,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:39,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 21:44:39,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:44:39,781 INFO L87 Difference]: Start difference. First operand 445 states and 485 transitions. Second operand has 8 states, 7 states have (on average 32.42857142857143) internal successors, (227), 8 states have internal predecessors, (227), 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) [2023-11-23 21:44:40,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:40,323 INFO L93 Difference]: Finished difference Result 464 states and 491 transitions. [2023-11-23 21:44:40,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:44:40,324 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 32.42857142857143) internal successors, (227), 8 states have internal predecessors, (227), 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 123 [2023-11-23 21:44:40,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:40,327 INFO L225 Difference]: With dead ends: 464 [2023-11-23 21:44:40,327 INFO L226 Difference]: Without dead ends: 448 [2023-11-23 21:44:40,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:44:40,329 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 378 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:40,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 167 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:44:40,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-11-23 21:44:40,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 437. [2023-11-23 21:44:40,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 401 states have (on average 1.1097256857855362) internal successors, (445), 425 states have internal predecessors, (445), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:44:40,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 463 transitions. [2023-11-23 21:44:40,359 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 463 transitions. Word has length 123 [2023-11-23 21:44:40,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:40,360 INFO L495 AbstractCegarLoop]: Abstraction has 437 states and 463 transitions. [2023-11-23 21:44:40,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 32.42857142857143) internal successors, (227), 8 states have internal predecessors, (227), 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) [2023-11-23 21:44:40,360 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 463 transitions. [2023-11-23 21:44:40,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-23 21:44:40,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:40,362 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:40,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:40,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:40,579 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr82ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:40,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:40,580 INFO L85 PathProgramCache]: Analyzing trace with hash 639891216, now seen corresponding path program 1 times [2023-11-23 21:44:40,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:40,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220082793] [2023-11-23 21:44:40,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:40,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:40,594 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:40,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1178235047] [2023-11-23 21:44:40,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:40,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:40,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:40,596 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:40,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-23 21:44:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:40,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:44:40,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:44:41,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:41,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:41,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220082793] [2023-11-23 21:44:41,502 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:41,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178235047] [2023-11-23 21:44:41,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178235047] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:41,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:44:41,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2023-11-23 21:44:41,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919527247] [2023-11-23 21:44:41,504 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:41,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:44:41,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:41,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:44:41,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:44:41,506 INFO L87 Difference]: Start difference. First operand 437 states and 463 transitions. Second operand has 5 states, 4 states have (on average 32.75) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:44:41,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:41,755 INFO L93 Difference]: Finished difference Result 437 states and 463 transitions. [2023-11-23 21:44:41,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:44:41,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 32.75) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 143 [2023-11-23 21:44:41,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:41,759 INFO L225 Difference]: With dead ends: 437 [2023-11-23 21:44:41,759 INFO L226 Difference]: Without dead ends: 436 [2023-11-23 21:44:41,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:44:41,760 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 96 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:41,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 61 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:44:41,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2023-11-23 21:44:41,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 436. [2023-11-23 21:44:41,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 401 states have (on average 1.1072319201995013) internal successors, (444), 424 states have internal predecessors, (444), 9 states have call successors, (9), 5 states have call predecessors, (9), 5 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:44:41,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 462 transitions. [2023-11-23 21:44:41,784 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 462 transitions. Word has length 143 [2023-11-23 21:44:41,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:41,785 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 462 transitions. [2023-11-23 21:44:41,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 32.75) internal successors, (131), 5 states have internal predecessors, (131), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:44:41,785 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 462 transitions. [2023-11-23 21:44:41,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-23 21:44:41,787 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:41,787 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:44:41,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:42,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:42,008 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:42,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:42,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1638208557, now seen corresponding path program 1 times [2023-11-23 21:44:42,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:42,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995903542] [2023-11-23 21:44:42,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:42,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:42,036 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:42,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349840510] [2023-11-23 21:44:42,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:42,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:42,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:42,039 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:42,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-23 21:44:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:42,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:44:42,127 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:42,742 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:44:42,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:42,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:42,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995903542] [2023-11-23 21:44:42,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:42,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349840510] [2023-11-23 21:44:42,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349840510] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:42,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:44:42,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-23 21:44:42,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080440327] [2023-11-23 21:44:42,868 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:42,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:44:42,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:42,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:44:42,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:44:42,870 INFO L87 Difference]: Start difference. First operand 436 states and 462 transitions. Second operand has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 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) [2023-11-23 21:44:43,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:43,312 INFO L93 Difference]: Finished difference Result 439 states and 464 transitions. [2023-11-23 21:44:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:44:43,313 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 144 [2023-11-23 21:44:43,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:43,316 INFO L225 Difference]: With dead ends: 439 [2023-11-23 21:44:43,317 INFO L226 Difference]: Without dead ends: 401 [2023-11-23 21:44:43,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:44:43,318 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 38 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:43,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 113 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 21:44:43,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2023-11-23 21:44:43,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2023-11-23 21:44:43,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 367 states have (on average 1.1144414168937329) internal successors, (409), 389 states have internal predecessors, (409), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:44:43,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 425 transitions. [2023-11-23 21:44:43,347 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 425 transitions. Word has length 144 [2023-11-23 21:44:43,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:43,348 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 425 transitions. [2023-11-23 21:44:43,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 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) [2023-11-23 21:44:43,349 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 425 transitions. [2023-11-23 21:44:43,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-23 21:44:43,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:43,351 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 21:44:43,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:43,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-23 21:44:43,580 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:43,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:43,580 INFO L85 PathProgramCache]: Analyzing trace with hash -394859059, now seen corresponding path program 1 times [2023-11-23 21:44:43,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:43,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001728905] [2023-11-23 21:44:43,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:43,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:43,601 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:43,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1015625008] [2023-11-23 21:44:43,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:43,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:43,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:43,602 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:43,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-23 21:44:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:43,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 21:44:43,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:43,979 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:44:43,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:44,652 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 120 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-23 21:44:44,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:44,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001728905] [2023-11-23 21:44:44,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:44,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015625008] [2023-11-23 21:44:44,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015625008] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:44,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:44:44,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-23 21:44:44,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365828502] [2023-11-23 21:44:44,655 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:44,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:44:44,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:44,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:44:44,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:44:44,659 INFO L87 Difference]: Start difference. First operand 401 states and 425 transitions. Second operand has 10 states, 9 states have (on average 31.666666666666668) internal successors, (285), 10 states have internal predecessors, (285), 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) [2023-11-23 21:44:45,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:45,611 INFO L93 Difference]: Finished difference Result 408 states and 427 transitions. [2023-11-23 21:44:45,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 21:44:45,611 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 31.666666666666668) internal successors, (285), 10 states have internal predecessors, (285), 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 152 [2023-11-23 21:44:45,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:45,614 INFO L225 Difference]: With dead ends: 408 [2023-11-23 21:44:45,614 INFO L226 Difference]: Without dead ends: 406 [2023-11-23 21:44:45,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:44:45,615 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 439 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:45,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 171 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 21:44:45,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-11-23 21:44:45,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 399. [2023-11-23 21:44:45,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 367 states have (on average 1.098092643051771) internal successors, (403), 387 states have internal predecessors, (403), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:44:45,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 419 transitions. [2023-11-23 21:44:45,640 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 419 transitions. Word has length 152 [2023-11-23 21:44:45,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:45,641 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 419 transitions. [2023-11-23 21:44:45,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 31.666666666666668) internal successors, (285), 10 states have internal predecessors, (285), 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) [2023-11-23 21:44:45,641 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 419 transitions. [2023-11-23 21:44:45,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-23 21:44:45,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:45,644 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 21:44:45,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:45,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-23 21:44:45,850 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:45,850 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:45,851 INFO L85 PathProgramCache]: Analyzing trace with hash 378820335, now seen corresponding path program 1 times [2023-11-23 21:44:45,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:45,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468713884] [2023-11-23 21:44:45,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:45,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:45,868 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:45,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1527825212] [2023-11-23 21:44:45,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:45,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:45,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:45,870 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:45,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-23 21:44:45,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:45,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:44:45,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:46,203 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:44:46,204 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:46,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:46,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468713884] [2023-11-23 21:44:46,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:46,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527825212] [2023-11-23 21:44:46,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527825212] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:44:46,287 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:44:46,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-23 21:44:46,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209987626] [2023-11-23 21:44:46,288 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:46,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:44:46,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:46,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:44:46,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:44:46,290 INFO L87 Difference]: Start difference. First operand 399 states and 419 transitions. Second operand has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 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) [2023-11-23 21:44:46,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:46,828 INFO L93 Difference]: Finished difference Result 456 states and 465 transitions. [2023-11-23 21:44:46,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:44:46,829 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 167 [2023-11-23 21:44:46,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:46,832 INFO L225 Difference]: With dead ends: 456 [2023-11-23 21:44:46,832 INFO L226 Difference]: Without dead ends: 453 [2023-11-23 21:44:46,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:44:46,833 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 123 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:46,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 104 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 21:44:46,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-11-23 21:44:46,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 399. [2023-11-23 21:44:46,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 367 states have (on average 1.0899182561307903) internal successors, (400), 387 states have internal predecessors, (400), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:44:46,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 416 transitions. [2023-11-23 21:44:46,860 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 416 transitions. Word has length 167 [2023-11-23 21:44:46,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:46,860 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 416 transitions. [2023-11-23 21:44:46,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 31.0) internal successors, (155), 6 states have internal predecessors, (155), 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) [2023-11-23 21:44:46,861 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 416 transitions. [2023-11-23 21:44:46,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-11-23 21:44:46,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:46,863 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2023-11-23 21:44:46,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-23 21:44:47,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:47,073 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:47,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:47,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1025873583, now seen corresponding path program 1 times [2023-11-23 21:44:47,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:47,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954962115] [2023-11-23 21:44:47,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:47,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:47,094 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:47,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599943287] [2023-11-23 21:44:47,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:47,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:47,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:47,096 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:47,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-23 21:44:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:47,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 21:44:47,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:47,464 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:44:47,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:48,104 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-23 21:44:48,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:44:48,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954962115] [2023-11-23 21:44:48,104 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 21:44:48,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599943287] [2023-11-23 21:44:48,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599943287] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:44:48,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 21:44:48,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-23 21:44:48,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531930689] [2023-11-23 21:44:48,105 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 21:44:48,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 21:44:48,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:44:48,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 21:44:48,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:44:48,108 INFO L87 Difference]: Start difference. First operand 399 states and 416 transitions. Second operand has 10 states, 9 states have (on average 34.333333333333336) internal successors, (309), 10 states have internal predecessors, (309), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:44:48,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:44:48,910 INFO L93 Difference]: Finished difference Result 479 states and 498 transitions. [2023-11-23 21:44:48,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:44:48,911 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 34.333333333333336) internal successors, (309), 10 states have internal predecessors, (309), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 169 [2023-11-23 21:44:48,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:44:48,914 INFO L225 Difference]: With dead ends: 479 [2023-11-23 21:44:48,914 INFO L226 Difference]: Without dead ends: 467 [2023-11-23 21:44:48,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2023-11-23 21:44:48,916 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 452 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:44:48,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 271 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 21:44:48,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2023-11-23 21:44:48,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 409. [2023-11-23 21:44:48,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 385 states have (on average 1.0467532467532468) internal successors, (403), 397 states have internal predecessors, (403), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:44:48,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 419 transitions. [2023-11-23 21:44:48,940 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 419 transitions. Word has length 169 [2023-11-23 21:44:48,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:44:48,941 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 419 transitions. [2023-11-23 21:44:48,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 34.333333333333336) internal successors, (309), 10 states have internal predecessors, (309), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:44:48,942 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 419 transitions. [2023-11-23 21:44:48,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-11-23 21:44:48,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:44:48,944 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-11-23 21:44:48,951 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-11-23 21:44:49,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-23 21:44:49,151 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-23 21:44:49,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:44:49,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1977969587, now seen corresponding path program 1 times [2023-11-23 21:44:49,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:44:49,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427844319] [2023-11-23 21:44:49,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:49,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:44:49,170 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 21:44:49,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1336307917] [2023-11-23 21:44:49,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:44:49,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:44:49,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:44:49,172 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:44:49,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c064733-f398-4a91-9ef6-2e0cc0f05cac/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-23 21:44:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:44:49,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-23 21:44:49,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:44:49,547 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 6 proven. 156 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-23 21:44:49,547 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:44:53,670 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 15)) (.cse1 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 10)) (.cse2 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 6))) (or (< (+ (* (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 6) (* |c_ULTIMATE.start_main_~y~0#1| 4) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 4 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (div (+ .cse0 .cse1 .cse2 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) 30)) 9223372036854775807) (not (= (mod (+ .cse0 .cse1 (* |c_ULTIMATE.start_main_~y~0#1| 29) .cse2) 30) 0)))) is different from false