./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme --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 9851f41ad4fb2d0ff96507e8e48f0d2886a8de6481eed845b23377b9fa492b45 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:59:00,122 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:59:00,215 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 11:59:00,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:59:00,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:59:00,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:59:00,270 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:59:00,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:59:00,275 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:59:00,280 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:59:00,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:59:00,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:59:00,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:59:00,284 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:59:00,284 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:59:00,285 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:59:00,285 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:59:00,286 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:59:00,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:59:00,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:59:00,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:59:00,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:59:00,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:59:00,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:59:00,293 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:59:00,293 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:59:00,294 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:59:00,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:59:00,294 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:59:00,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:59:00,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:59:00,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:59:00,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:59:00,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:00,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:59:00,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:59:00,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:59:00,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:59:00,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:59:00,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:59:00,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:59:00,300 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:59:00,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:59:00,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:59:00,301 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_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9851f41ad4fb2d0ff96507e8e48f0d2886a8de6481eed845b23377b9fa492b45 [2023-11-26 11:59:00,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:59:00,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:59:00,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:59:00,647 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:59:00,647 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:59:00,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c [2023-11-26 11:59:03,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:59:04,068 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:59:04,069 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound2.c [2023-11-26 11:59:04,076 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/data/3b58cb3e2/a8ef9d4d6595401297f2f598300d4716/FLAGa57900de1 [2023-11-26 11:59:04,092 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/data/3b58cb3e2/a8ef9d4d6595401297f2f598300d4716 [2023-11-26 11:59:04,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:59:04,096 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:59:04,098 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:04,098 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:59:04,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:59:04,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,106 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d03b0e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04, skipping insertion in model container [2023-11-26 11:59:04,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,131 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:59:04,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:59:04,327 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:59:04,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:59:04,367 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:59:04,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04 WrapperNode [2023-11-26 11:59:04,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:59:04,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:59:04,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:59:04,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:59:04,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,385 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,414 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2023-11-26 11:59:04,414 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:59:04,415 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:59:04,416 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:59:04,416 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:59:04,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,432 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,446 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 11:59:04,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,451 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,458 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,461 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:59:04,462 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:59:04,462 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:59:04,463 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:59:04,464 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (1/1) ... [2023-11-26 11:59:04,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:59:04,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:04,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:59:04,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:59:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:59:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:59:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:59:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:59:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:59:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:59:04,552 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 11:59:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 11:59:04,637 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:59:04,642 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:59:05,059 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:59:05,091 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:59:05,092 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 11:59:05,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:05 BoogieIcfgContainer [2023-11-26 11:59:05,093 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:59:05,096 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:59:05,096 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:59:05,100 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:59:05,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:59:04" (1/3) ... [2023-11-26 11:59:05,101 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2053b11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:05, skipping insertion in model container [2023-11-26 11:59:05,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:04" (2/3) ... [2023-11-26 11:59:05,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2053b11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:05, skipping insertion in model container [2023-11-26 11:59:05,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:05" (3/3) ... [2023-11-26 11:59:05,104 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound2.c [2023-11-26 11:59:05,126 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:59:05,126 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-26 11:59:05,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:59:05,212 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;@5e159f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:59:05,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-26 11:59:05,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 39 states have (on average 1.8461538461538463) internal successors, (72), 63 states have internal predecessors, (72), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 11:59:05,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 11:59:05,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:05,234 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:05,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:05,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:05,245 INFO L85 PathProgramCache]: Analyzing trace with hash -86371443, now seen corresponding path program 1 times [2023-11-26 11:59:05,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:05,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29396358] [2023-11-26 11:59:05,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:05,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:05,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:05,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29396358] [2023-11-26 11:59:05,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-26 11:59:05,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2090257894] [2023-11-26 11:59:05,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:05,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:05,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:05,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:05,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:59:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:05,513 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 11:59:05,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:05,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-26 11:59:05,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:05,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2090257894] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:05,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:05,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:05,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735910521] [2023-11-26 11:59:05,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:05,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:59:05,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:05,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:59:05,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:59:05,613 INFO L87 Difference]: Start difference. First operand has 76 states, 39 states have (on average 1.8461538461538463) internal successors, (72), 63 states have internal predecessors, (72), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:59:05,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:05,656 INFO L93 Difference]: Finished difference Result 150 states and 191 transitions. [2023-11-26 11:59:05,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:59:05,659 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-11-26 11:59:05,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:05,668 INFO L225 Difference]: With dead ends: 150 [2023-11-26 11:59:05,669 INFO L226 Difference]: Without dead ends: 72 [2023-11-26 11:59:05,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:59:05,677 INFO L413 NwaCegarLoop]: 84 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, 84 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 [2023-11-26 11:59:05,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:05,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-26 11:59:05,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-26 11:59:05,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 61 states have internal predecessors, (64), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:59:05,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 80 transitions. [2023-11-26 11:59:05,733 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 80 transitions. Word has length 21 [2023-11-26 11:59:05,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:05,734 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 80 transitions. [2023-11-26 11:59:05,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:59:05,735 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 80 transitions. [2023-11-26 11:59:05,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 11:59:05,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:05,738 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:05,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:05,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-26 11:59:05,946 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:05,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:05,947 INFO L85 PathProgramCache]: Analyzing trace with hash 140634780, now seen corresponding path program 1 times [2023-11-26 11:59:05,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:05,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217727326] [2023-11-26 11:59:05,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:05,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:05,979 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:05,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1342063913] [2023-11-26 11:59:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:05,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:05,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:05,982 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:06,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:59:06,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:06,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:59:06,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:06,227 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-26 11:59:06,228 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:06,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:06,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217727326] [2023-11-26 11:59:06,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:06,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342063913] [2023-11-26 11:59:06,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342063913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:06,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:06,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:59:06,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407197803] [2023-11-26 11:59:06,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:06,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:06,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:06,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:06,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:06,234 INFO L87 Difference]: Start difference. First operand 72 states and 80 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 11:59:06,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:06,543 INFO L93 Difference]: Finished difference Result 148 states and 167 transitions. [2023-11-26 11:59:06,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:06,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2023-11-26 11:59:06,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:06,547 INFO L225 Difference]: With dead ends: 148 [2023-11-26 11:59:06,547 INFO L226 Difference]: Without dead ends: 99 [2023-11-26 11:59:06,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:06,549 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 78 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:06,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 199 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:06,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-11-26 11:59:06,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2023-11-26 11:59:06,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 54 states have (on average 1.6111111111111112) internal successors, (87), 77 states have internal predecessors, (87), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 11:59:06,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2023-11-26 11:59:06,573 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 30 [2023-11-26 11:59:06,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:06,581 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2023-11-26 11:59:06,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 11:59:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2023-11-26 11:59:06,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-26 11:59:06,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:06,585 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:06,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:06,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:06,792 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:06,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:06,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1677847877, now seen corresponding path program 1 times [2023-11-26 11:59:06,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:06,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544995314] [2023-11-26 11:59:06,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:06,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:06,818 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:06,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879265428] [2023-11-26 11:59:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:06,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:06,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:06,820 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:06,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:59:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:06,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:59:06,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:06,940 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:59:06,941 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:06,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:06,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544995314] [2023-11-26 11:59:06,941 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:06,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879265428] [2023-11-26 11:59:06,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879265428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:06,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:06,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:06,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126223835] [2023-11-26 11:59:06,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:06,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:06,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:06,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:06,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:06,946 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:06,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:06,997 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2023-11-26 11:59:06,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:06,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 38 [2023-11-26 11:59:06,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:07,001 INFO L225 Difference]: With dead ends: 93 [2023-11-26 11:59:07,001 INFO L226 Difference]: Without dead ends: 91 [2023-11-26 11:59:07,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:07,003 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 47 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:07,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 74 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-11-26 11:59:07,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-11-26 11:59:07,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 54 states have (on average 1.5555555555555556) internal successors, (84), 75 states have internal predecessors, (84), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 11:59:07,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 110 transitions. [2023-11-26 11:59:07,033 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 110 transitions. Word has length 38 [2023-11-26 11:59:07,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:07,034 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 110 transitions. [2023-11-26 11:59:07,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:07,034 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions. [2023-11-26 11:59:07,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-26 11:59:07,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:07,036 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:07,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:07,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:07,242 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:07,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:07,243 INFO L85 PathProgramCache]: Analyzing trace with hash 473675319, now seen corresponding path program 1 times [2023-11-26 11:59:07,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:07,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691995597] [2023-11-26 11:59:07,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:07,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:07,284 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:07,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [311991197] [2023-11-26 11:59:07,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:07,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:07,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:07,295 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:07,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:59:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:07,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:59:07,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:07,601 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-26 11:59:07,601 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:07,834 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:59:07,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:07,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691995597] [2023-11-26 11:59:07,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:07,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [311991197] [2023-11-26 11:59:07,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [311991197] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:07,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:07,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-11-26 11:59:07,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368688767] [2023-11-26 11:59:07,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:07,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:07,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:07,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:07,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:59:07,838 INFO L87 Difference]: Start difference. First operand 91 states and 110 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:07,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:07,968 INFO L93 Difference]: Finished difference Result 94 states and 113 transitions. [2023-11-26 11:59:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:07,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-11-26 11:59:07,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:07,976 INFO L225 Difference]: With dead ends: 94 [2023-11-26 11:59:07,976 INFO L226 Difference]: Without dead ends: 93 [2023-11-26 11:59:07,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:59:07,984 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 95 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:07,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 69 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:07,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-11-26 11:59:08,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2023-11-26 11:59:08,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 77 states have internal predecessors, (85), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 11:59:08,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 111 transitions. [2023-11-26 11:59:08,022 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 111 transitions. Word has length 39 [2023-11-26 11:59:08,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:08,023 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 111 transitions. [2023-11-26 11:59:08,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:08,023 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2023-11-26 11:59:08,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-26 11:59:08,026 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:08,026 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:08,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:08,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:08,233 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:08,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:08,234 INFO L85 PathProgramCache]: Analyzing trace with hash 473676697, now seen corresponding path program 1 times [2023-11-26 11:59:08,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:08,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667057770] [2023-11-26 11:59:08,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:08,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:08,252 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:08,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139753776] [2023-11-26 11:59:08,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:08,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:08,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:08,255 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:08,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:59:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:08,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:59:08,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:08,371 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:59:08,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:08,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:08,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667057770] [2023-11-26 11:59:08,372 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:08,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139753776] [2023-11-26 11:59:08,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139753776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:08,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:08,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:08,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823626772] [2023-11-26 11:59:08,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:08,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:08,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:08,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:08,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:08,375 INFO L87 Difference]: Start difference. First operand 93 states and 111 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:08,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:08,428 INFO L93 Difference]: Finished difference Result 105 states and 118 transitions. [2023-11-26 11:59:08,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:08,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-11-26 11:59:08,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:08,430 INFO L225 Difference]: With dead ends: 105 [2023-11-26 11:59:08,430 INFO L226 Difference]: Without dead ends: 104 [2023-11-26 11:59:08,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:08,431 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 19 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:08,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 121 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:08,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-26 11:59:08,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 93. [2023-11-26 11:59:08,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 56 states have (on average 1.5) internal successors, (84), 77 states have internal predecessors, (84), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 11:59:08,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2023-11-26 11:59:08,447 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 39 [2023-11-26 11:59:08,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:08,447 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2023-11-26 11:59:08,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:08,448 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2023-11-26 11:59:08,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-26 11:59:08,449 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:08,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:08,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:08,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:08,660 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:08,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:08,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1799033082, now seen corresponding path program 1 times [2023-11-26 11:59:08,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:08,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149181723] [2023-11-26 11:59:08,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:08,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:08,677 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:08,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639739450] [2023-11-26 11:59:08,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:08,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:08,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:08,678 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:08,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:59:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:08,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:59:08,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:08,959 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-26 11:59:08,959 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:09,149 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:59:09,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:09,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149181723] [2023-11-26 11:59:09,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:09,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639739450] [2023-11-26 11:59:09,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639739450] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:09,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:09,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-11-26 11:59:09,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461791389] [2023-11-26 11:59:09,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:09,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:09,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:09,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:09,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:59:09,154 INFO L87 Difference]: Start difference. First operand 93 states and 110 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:09,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:09,228 INFO L93 Difference]: Finished difference Result 95 states and 112 transitions. [2023-11-26 11:59:09,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:09,229 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2023-11-26 11:59:09,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:09,231 INFO L225 Difference]: With dead ends: 95 [2023-11-26 11:59:09,231 INFO L226 Difference]: Without dead ends: 94 [2023-11-26 11:59:09,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:59:09,233 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 47 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:09,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 88 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:09,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-26 11:59:09,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2023-11-26 11:59:09,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 78 states have internal predecessors, (84), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-26 11:59:09,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 110 transitions. [2023-11-26 11:59:09,261 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 110 transitions. Word has length 40 [2023-11-26 11:59:09,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:09,261 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 110 transitions. [2023-11-26 11:59:09,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 110 transitions. [2023-11-26 11:59:09,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-26 11:59:09,263 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:09,263 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:09,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:09,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:09,469 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:09,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:09,469 INFO L85 PathProgramCache]: Analyzing trace with hash -64549223, now seen corresponding path program 1 times [2023-11-26 11:59:09,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:09,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662365394] [2023-11-26 11:59:09,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:09,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:09,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:09,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655050509] [2023-11-26 11:59:09,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:09,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:09,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:09,498 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:09,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:59:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:09,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:59:09,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:59:09,601 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:09,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:09,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662365394] [2023-11-26 11:59:09,601 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:09,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655050509] [2023-11-26 11:59:09,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655050509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:09,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:09,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:59:09,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23156728] [2023-11-26 11:59:09,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:09,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:09,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:09,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:09,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:09,604 INFO L87 Difference]: Start difference. First operand 94 states and 110 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:09,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:09,677 INFO L93 Difference]: Finished difference Result 128 states and 147 transitions. [2023-11-26 11:59:09,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:09,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2023-11-26 11:59:09,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:09,679 INFO L225 Difference]: With dead ends: 128 [2023-11-26 11:59:09,680 INFO L226 Difference]: Without dead ends: 127 [2023-11-26 11:59:09,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:09,681 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 81 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:09,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 95 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:09,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-26 11:59:09,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 109. [2023-11-26 11:59:09,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.4857142857142858) internal successors, (104), 91 states have internal predecessors, (104), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-26 11:59:09,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2023-11-26 11:59:09,697 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 41 [2023-11-26 11:59:09,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:09,697 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2023-11-26 11:59:09,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:09,698 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2023-11-26 11:59:09,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-26 11:59:09,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:09,699 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:09,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:09,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-26 11:59:09,905 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:09,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:09,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2001025828, now seen corresponding path program 1 times [2023-11-26 11:59:09,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:09,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976919200] [2023-11-26 11:59:09,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:09,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:09,937 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:09,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [855239004] [2023-11-26 11:59:09,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:09,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:09,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:09,942 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:09,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:59:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:10,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:59:10,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:10,183 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-26 11:59:10,183 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:10,373 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-11-26 11:59:10,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:10,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976919200] [2023-11-26 11:59:10,373 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:10,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855239004] [2023-11-26 11:59:10,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855239004] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:10,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:10,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-11-26 11:59:10,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420124436] [2023-11-26 11:59:10,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:10,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:10,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:10,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:10,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:59:10,376 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:10,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:10,609 INFO L93 Difference]: Finished difference Result 120 states and 145 transitions. [2023-11-26 11:59:10,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:10,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2023-11-26 11:59:10,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:10,612 INFO L225 Difference]: With dead ends: 120 [2023-11-26 11:59:10,612 INFO L226 Difference]: Without dead ends: 119 [2023-11-26 11:59:10,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:59:10,613 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 86 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:10,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 108 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:10,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-11-26 11:59:10,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 111. [2023-11-26 11:59:10,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 72 states have (on average 1.4583333333333333) internal successors, (105), 93 states have internal predecessors, (105), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-26 11:59:10,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 135 transitions. [2023-11-26 11:59:10,633 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 135 transitions. Word has length 42 [2023-11-26 11:59:10,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:10,633 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 135 transitions. [2023-11-26 11:59:10,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 11:59:10,634 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 135 transitions. [2023-11-26 11:59:10,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-26 11:59:10,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:10,635 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:10,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:10,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-26 11:59:10,842 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:10,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:10,842 INFO L85 PathProgramCache]: Analyzing trace with hash -573724229, now seen corresponding path program 1 times [2023-11-26 11:59:10,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:10,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479343749] [2023-11-26 11:59:10,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:10,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:10,857 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:10,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704763026] [2023-11-26 11:59:10,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:10,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:10,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:10,859 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:10,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:59:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:10,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 11:59:10,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:11,207 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-26 11:59:11,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:11,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:11,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479343749] [2023-11-26 11:59:11,443 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:11,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704763026] [2023-11-26 11:59:11,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704763026] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:11,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:11,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-26 11:59:11,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164543676] [2023-11-26 11:59:11,444 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:11,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:59:11,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:11,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:59:11,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:59:11,446 INFO L87 Difference]: Start difference. First operand 111 states and 135 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-26 11:59:11,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:11,938 INFO L93 Difference]: Finished difference Result 141 states and 167 transitions. [2023-11-26 11:59:11,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:59:11,939 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 53 [2023-11-26 11:59:11,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:11,941 INFO L225 Difference]: With dead ends: 141 [2023-11-26 11:59:11,941 INFO L226 Difference]: Without dead ends: 129 [2023-11-26 11:59:11,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2023-11-26 11:59:11,943 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 179 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:11,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 217 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:59:11,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-26 11:59:11,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 117. [2023-11-26 11:59:11,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 80 states have (on average 1.35) internal successors, (108), 97 states have internal predecessors, (108), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-26 11:59:11,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 142 transitions. [2023-11-26 11:59:11,966 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 142 transitions. Word has length 53 [2023-11-26 11:59:11,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:11,966 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 142 transitions. [2023-11-26 11:59:11,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-26 11:59:11,966 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 142 transitions. [2023-11-26 11:59:11,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 11:59:11,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:11,968 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:11,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:12,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:12,174 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:12,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:12,175 INFO L85 PathProgramCache]: Analyzing trace with hash -605581863, now seen corresponding path program 1 times [2023-11-26 11:59:12,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:12,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738377652] [2023-11-26 11:59:12,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:12,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:12,190 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:12,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982679644] [2023-11-26 11:59:12,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:12,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:12,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:12,191 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:12,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:59:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:12,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 11:59:12,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-26 11:59:12,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:12,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:12,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738377652] [2023-11-26 11:59:12,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:12,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982679644] [2023-11-26 11:59:12,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982679644] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:12,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:12,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-26 11:59:12,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740938828] [2023-11-26 11:59:12,817 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:12,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:59:12,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:12,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:59:12,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-26 11:59:12,818 INFO L87 Difference]: Start difference. First operand 117 states and 142 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-26 11:59:13,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:13,815 INFO L93 Difference]: Finished difference Result 212 states and 255 transitions. [2023-11-26 11:59:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-26 11:59:13,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 54 [2023-11-26 11:59:13,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:13,818 INFO L225 Difference]: With dead ends: 212 [2023-11-26 11:59:13,818 INFO L226 Difference]: Without dead ends: 208 [2023-11-26 11:59:13,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:59:13,820 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 312 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:13,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 292 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-26 11:59:13,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-26 11:59:13,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 177. [2023-11-26 11:59:13,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 131 states have (on average 1.3435114503816794) internal successors, (176), 148 states have internal predecessors, (176), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-26 11:59:13,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 228 transitions. [2023-11-26 11:59:13,850 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 228 transitions. Word has length 54 [2023-11-26 11:59:13,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:13,851 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 228 transitions. [2023-11-26 11:59:13,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-11-26 11:59:13,851 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 228 transitions. [2023-11-26 11:59:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 11:59:13,853 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:13,853 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:13,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:14,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 11:59:14,059 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:14,059 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:14,059 INFO L85 PathProgramCache]: Analyzing trace with hash -192611429, now seen corresponding path program 1 times [2023-11-26 11:59:14,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:14,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640197188] [2023-11-26 11:59:14,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:14,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:14,081 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:14,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992759780] [2023-11-26 11:59:14,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:14,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:14,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:14,083 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:14,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:59:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:14,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:59:14,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-26 11:59:14,180 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:14,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:14,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640197188] [2023-11-26 11:59:14,181 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:14,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992759780] [2023-11-26 11:59:14,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992759780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:14,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:14,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:14,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738276330] [2023-11-26 11:59:14,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:14,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:14,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:14,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:14,184 INFO L87 Difference]: Start difference. First operand 177 states and 228 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:59:14,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:14,264 INFO L93 Difference]: Finished difference Result 200 states and 251 transitions. [2023-11-26 11:59:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:14,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2023-11-26 11:59:14,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:14,269 INFO L225 Difference]: With dead ends: 200 [2023-11-26 11:59:14,270 INFO L226 Difference]: Without dead ends: 198 [2023-11-26 11:59:14,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:14,271 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 30 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:14,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 98 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:14,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-11-26 11:59:14,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 179. [2023-11-26 11:59:14,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 133 states have (on average 1.3383458646616542) internal successors, (178), 150 states have internal predecessors, (178), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-26 11:59:14,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 230 transitions. [2023-11-26 11:59:14,305 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 230 transitions. Word has length 56 [2023-11-26 11:59:14,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:14,306 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 230 transitions. [2023-11-26 11:59:14,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:59:14,306 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 230 transitions. [2023-11-26 11:59:14,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-26 11:59:14,307 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:14,308 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:14,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:14,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 11:59:14,513 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:14,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:14,514 INFO L85 PathProgramCache]: Analyzing trace with hash -415985539, now seen corresponding path program 1 times [2023-11-26 11:59:14,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:14,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816798116] [2023-11-26 11:59:14,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:14,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:14,541 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:14,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [143766649] [2023-11-26 11:59:14,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:14,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:14,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:14,545 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:14,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 11:59:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:14,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:59:14,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:14,668 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-26 11:59:14,668 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:14,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:14,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816798116] [2023-11-26 11:59:14,669 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:14,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143766649] [2023-11-26 11:59:14,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143766649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:14,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:14,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:59:14,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309676073] [2023-11-26 11:59:14,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:14,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:14,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:14,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:14,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:14,672 INFO L87 Difference]: Start difference. First operand 179 states and 230 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:59:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:15,162 INFO L93 Difference]: Finished difference Result 193 states and 242 transitions. [2023-11-26 11:59:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:15,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 58 [2023-11-26 11:59:15,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:15,167 INFO L225 Difference]: With dead ends: 193 [2023-11-26 11:59:15,167 INFO L226 Difference]: Without dead ends: 192 [2023-11-26 11:59:15,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:15,168 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 38 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:15,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 134 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 11:59:15,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-26 11:59:15,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 180. [2023-11-26 11:59:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 134 states have (on average 1.335820895522388) internal successors, (179), 151 states have internal predecessors, (179), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2023-11-26 11:59:15,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 231 transitions. [2023-11-26 11:59:15,204 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 231 transitions. Word has length 58 [2023-11-26 11:59:15,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:15,204 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 231 transitions. [2023-11-26 11:59:15,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:59:15,205 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 231 transitions. [2023-11-26 11:59:15,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-26 11:59:15,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:15,206 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:15,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-26 11:59:15,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-26 11:59:15,411 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:15,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:15,412 INFO L85 PathProgramCache]: Analyzing trace with hash -10649692, now seen corresponding path program 1 times [2023-11-26 11:59:15,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:15,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192423294] [2023-11-26 11:59:15,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:15,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:15,439 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:15,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [549813894] [2023-11-26 11:59:15,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:15,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:15,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:15,444 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:15,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-26 11:59:15,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:15,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-26 11:59:15,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:15,686 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-26 11:59:15,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:15,791 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-26 11:59:15,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:15,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192423294] [2023-11-26 11:59:15,791 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:15,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549813894] [2023-11-26 11:59:15,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549813894] provided 1 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:15,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:15,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2023-11-26 11:59:15,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791983479] [2023-11-26 11:59:15,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:15,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:15,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:15,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:15,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:59:15,794 INFO L87 Difference]: Start difference. First operand 180 states and 231 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-26 11:59:16,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:16,110 INFO L93 Difference]: Finished difference Result 185 states and 235 transitions. [2023-11-26 11:59:16,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:16,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 59 [2023-11-26 11:59:16,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:16,112 INFO L225 Difference]: With dead ends: 185 [2023-11-26 11:59:16,112 INFO L226 Difference]: Without dead ends: 170 [2023-11-26 11:59:16,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:59:16,113 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 19 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:16,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 140 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:59:16,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-26 11:59:16,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2023-11-26 11:59:16,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 126 states have (on average 1.3492063492063493) internal successors, (170), 143 states have internal predecessors, (170), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:59:16,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 218 transitions. [2023-11-26 11:59:16,141 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 218 transitions. Word has length 59 [2023-11-26 11:59:16,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:16,141 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 218 transitions. [2023-11-26 11:59:16,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-26 11:59:16,141 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 218 transitions. [2023-11-26 11:59:16,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-26 11:59:16,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:16,143 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:16,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:16,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 11:59:16,348 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:16,349 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:16,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1887727782, now seen corresponding path program 1 times [2023-11-26 11:59:16,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:16,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208155459] [2023-11-26 11:59:16,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:16,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:16,377 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:16,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587080286] [2023-11-26 11:59:16,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:16,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:16,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:16,379 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:16,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-26 11:59:16,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:16,446 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:59:16,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:16,488 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-26 11:59:16,489 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:16,554 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-26 11:59:16,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:16,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208155459] [2023-11-26 11:59:16,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:16,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587080286] [2023-11-26 11:59:16,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587080286] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:16,555 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:59:16,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-26 11:59:16,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226506071] [2023-11-26 11:59:16,555 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:16,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:16,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:16,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:16,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:16,557 INFO L87 Difference]: Start difference. First operand 170 states and 218 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-26 11:59:16,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:16,853 INFO L93 Difference]: Finished difference Result 299 states and 365 transitions. [2023-11-26 11:59:16,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:16,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 62 [2023-11-26 11:59:16,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:16,856 INFO L225 Difference]: With dead ends: 299 [2023-11-26 11:59:16,856 INFO L226 Difference]: Without dead ends: 297 [2023-11-26 11:59:16,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:16,857 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 119 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:16,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 228 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:16,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-11-26 11:59:16,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 239. [2023-11-26 11:59:16,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 183 states have (on average 1.349726775956284) internal successors, (247), 200 states have internal predecessors, (247), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 11:59:16,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 319 transitions. [2023-11-26 11:59:16,897 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 319 transitions. Word has length 62 [2023-11-26 11:59:16,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:16,898 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 319 transitions. [2023-11-26 11:59:16,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-26 11:59:16,898 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 319 transitions. [2023-11-26 11:59:16,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-26 11:59:16,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:16,903 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:16,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:17,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 11:59:17,109 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:17,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:17,109 INFO L85 PathProgramCache]: Analyzing trace with hash -341860360, now seen corresponding path program 2 times [2023-11-26 11:59:17,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:17,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480794681] [2023-11-26 11:59:17,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:17,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:17,120 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:17,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [417055190] [2023-11-26 11:59:17,120 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:59:17,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:17,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:17,122 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:17,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-26 11:59:17,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:59:17,194 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:59:17,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-26 11:59:17,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:17,689 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 6 proven. 42 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2023-11-26 11:59:17,689 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:18,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:18,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480794681] [2023-11-26 11:59:18,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:18,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417055190] [2023-11-26 11:59:18,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417055190] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:18,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:18,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-11-26 11:59:18,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180305877] [2023-11-26 11:59:18,110 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:18,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:59:18,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:18,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:59:18,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:59:18,111 INFO L87 Difference]: Start difference. First operand 239 states and 319 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-26 11:59:19,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:19,844 INFO L93 Difference]: Finished difference Result 319 states and 411 transitions. [2023-11-26 11:59:19,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:59:19,845 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) Word has length 77 [2023-11-26 11:59:19,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:19,848 INFO L225 Difference]: With dead ends: 319 [2023-11-26 11:59:19,848 INFO L226 Difference]: Without dead ends: 315 [2023-11-26 11:59:19,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2023-11-26 11:59:19,850 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 157 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:19,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 535 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-26 11:59:19,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2023-11-26 11:59:19,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 239. [2023-11-26 11:59:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 183 states have (on average 1.3387978142076502) internal successors, (245), 200 states have internal predecessors, (245), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 11:59:19,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 317 transitions. [2023-11-26 11:59:19,885 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 317 transitions. Word has length 77 [2023-11-26 11:59:19,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:19,885 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 317 transitions. [2023-11-26 11:59:19,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 6 states have call predecessors, (11), 6 states have call successors, (11) [2023-11-26 11:59:19,886 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 317 transitions. [2023-11-26 11:59:19,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-26 11:59:19,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:19,887 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2023-11-26 11:59:19,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:20,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-26 11:59:20,100 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:20,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:20,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1771595447, now seen corresponding path program 1 times [2023-11-26 11:59:20,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:20,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699037262] [2023-11-26 11:59:20,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:20,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:20,112 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:20,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478226247] [2023-11-26 11:59:20,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:20,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:20,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:20,114 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:20,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-26 11:59:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:20,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:59:20,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-26 11:59:20,194 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:20,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:20,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699037262] [2023-11-26 11:59:20,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:20,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478226247] [2023-11-26 11:59:20,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478226247] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:20,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:20,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:59:20,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878135044] [2023-11-26 11:59:20,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:20,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:59:20,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:20,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:59:20,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:20,197 INFO L87 Difference]: Start difference. First operand 239 states and 317 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:59:20,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:20,283 INFO L93 Difference]: Finished difference Result 239 states and 317 transitions. [2023-11-26 11:59:20,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:59:20,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 84 [2023-11-26 11:59:20,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:20,286 INFO L225 Difference]: With dead ends: 239 [2023-11-26 11:59:20,286 INFO L226 Difference]: Without dead ends: 238 [2023-11-26 11:59:20,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:59:20,287 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:20,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 113 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:59:20,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-26 11:59:20,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-11-26 11:59:20,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 183 states have (on average 1.3224043715846994) internal successors, (242), 199 states have internal predecessors, (242), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-11-26 11:59:20,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 314 transitions. [2023-11-26 11:59:20,329 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 314 transitions. Word has length 84 [2023-11-26 11:59:20,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:20,330 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 314 transitions. [2023-11-26 11:59:20,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:59:20,330 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 314 transitions. [2023-11-26 11:59:20,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-26 11:59:20,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:20,331 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2023-11-26 11:59:20,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:20,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-26 11:59:20,538 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:20,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:20,539 INFO L85 PathProgramCache]: Analyzing trace with hash 915116102, now seen corresponding path program 1 times [2023-11-26 11:59:20,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:20,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766797335] [2023-11-26 11:59:20,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:20,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:20,560 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:20,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2103819713] [2023-11-26 11:59:20,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:20,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:20,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:20,562 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:20,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-26 11:59:20,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:20,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:59:20,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-11-26 11:59:20,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:20,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:20,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766797335] [2023-11-26 11:59:20,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:20,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103819713] [2023-11-26 11:59:20,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103819713] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:20,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:20,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 11:59:20,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438631076] [2023-11-26 11:59:20,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:20,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:59:20,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:20,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:59:20,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:20,929 INFO L87 Difference]: Start difference. First operand 238 states and 314 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-26 11:59:21,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:21,525 INFO L93 Difference]: Finished difference Result 445 states and 587 transitions. [2023-11-26 11:59:21,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-26 11:59:21,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 85 [2023-11-26 11:59:21,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:21,528 INFO L225 Difference]: With dead ends: 445 [2023-11-26 11:59:21,528 INFO L226 Difference]: Without dead ends: 302 [2023-11-26 11:59:21,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:59:21,532 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 51 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:21,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 256 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:59:21,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-11-26 11:59:21,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 208. [2023-11-26 11:59:21,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 160 states have (on average 1.30625) internal successors, (209), 175 states have internal predecessors, (209), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-26 11:59:21,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 269 transitions. [2023-11-26 11:59:21,574 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 269 transitions. Word has length 85 [2023-11-26 11:59:21,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:21,574 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 269 transitions. [2023-11-26 11:59:21,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-11-26 11:59:21,574 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 269 transitions. [2023-11-26 11:59:21,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-26 11:59:21,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:21,577 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2023-11-26 11:59:21,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:21,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-26 11:59:21,783 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:21,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:21,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1696171797, now seen corresponding path program 1 times [2023-11-26 11:59:21,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:21,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405460801] [2023-11-26 11:59:21,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:21,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:21,800 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:21,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1750071025] [2023-11-26 11:59:21,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:21,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:21,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:21,802 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:21,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-26 11:59:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:21,868 INFO L262 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:59:21,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:22,077 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-26 11:59:22,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:22,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:22,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405460801] [2023-11-26 11:59:22,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:22,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750071025] [2023-11-26 11:59:22,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750071025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:22,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:22,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:59:22,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946143020] [2023-11-26 11:59:22,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:22,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:22,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:22,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:22,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:22,081 INFO L87 Difference]: Start difference. First operand 208 states and 269 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:59:22,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:22,301 INFO L93 Difference]: Finished difference Result 218 states and 281 transitions. [2023-11-26 11:59:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:22,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2023-11-26 11:59:22,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:22,304 INFO L225 Difference]: With dead ends: 218 [2023-11-26 11:59:22,304 INFO L226 Difference]: Without dead ends: 217 [2023-11-26 11:59:22,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:22,305 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 47 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:22,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 96 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:22,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-26 11:59:22,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 211. [2023-11-26 11:59:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 163 states have (on average 1.3006134969325154) internal successors, (212), 178 states have internal predecessors, (212), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-26 11:59:22,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 272 transitions. [2023-11-26 11:59:22,352 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 272 transitions. Word has length 86 [2023-11-26 11:59:22,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:22,353 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 272 transitions. [2023-11-26 11:59:22,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:59:22,353 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 272 transitions. [2023-11-26 11:59:22,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-26 11:59:22,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:22,354 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2023-11-26 11:59:22,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:22,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-26 11:59:22,561 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:22,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:22,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1041718040, now seen corresponding path program 1 times [2023-11-26 11:59:22,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:22,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859903524] [2023-11-26 11:59:22,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:22,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:22,579 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:22,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1614084263] [2023-11-26 11:59:22,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:22,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:22,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:22,581 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:22,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-11-26 11:59:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:22,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:59:22,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:22,788 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-26 11:59:22,788 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:22,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:22,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859903524] [2023-11-26 11:59:22,788 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:22,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614084263] [2023-11-26 11:59:22,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614084263] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:22,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:22,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:59:22,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395763480] [2023-11-26 11:59:22,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:22,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:59:22,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:22,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:59:22,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:22,792 INFO L87 Difference]: Start difference. First operand 211 states and 272 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:59:23,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:23,015 INFO L93 Difference]: Finished difference Result 217 states and 278 transitions. [2023-11-26 11:59:23,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:23,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2023-11-26 11:59:23,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:23,018 INFO L225 Difference]: With dead ends: 217 [2023-11-26 11:59:23,019 INFO L226 Difference]: Without dead ends: 215 [2023-11-26 11:59:23,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:59:23,020 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 25 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:23,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 90 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-11-26 11:59:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 214. [2023-11-26 11:59:23,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 166 states have (on average 1.283132530120482) internal successors, (213), 181 states have internal predecessors, (213), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-26 11:59:23,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 273 transitions. [2023-11-26 11:59:23,079 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 273 transitions. Word has length 87 [2023-11-26 11:59:23,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:23,079 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 273 transitions. [2023-11-26 11:59:23,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-26 11:59:23,080 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 273 transitions. [2023-11-26 11:59:23,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-26 11:59:23,081 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:23,081 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2023-11-26 11:59:23,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:23,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:23,287 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:23,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:23,288 INFO L85 PathProgramCache]: Analyzing trace with hash -363654006, now seen corresponding path program 1 times [2023-11-26 11:59:23,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:23,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965249127] [2023-11-26 11:59:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:23,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:23,303 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:23,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592344856] [2023-11-26 11:59:23,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:23,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:23,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:23,305 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:23,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-11-26 11:59:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:23,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-26 11:59:23,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:24,201 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-26 11:59:24,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:25,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:25,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965249127] [2023-11-26 11:59:25,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:25,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592344856] [2023-11-26 11:59:25,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592344856] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:25,389 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:25,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-26 11:59:25,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738940250] [2023-11-26 11:59:25,389 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:25,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:59:25,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:25,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:59:25,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:59:25,391 INFO L87 Difference]: Start difference. First operand 214 states and 273 transitions. Second operand has 13 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-26 11:59:25,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:25,974 INFO L93 Difference]: Finished difference Result 283 states and 349 transitions. [2023-11-26 11:59:25,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:59:25,975 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 89 [2023-11-26 11:59:25,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:25,980 INFO L225 Difference]: With dead ends: 283 [2023-11-26 11:59:25,981 INFO L226 Difference]: Without dead ends: 282 [2023-11-26 11:59:25,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2023-11-26 11:59:25,982 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 250 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:25,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 205 Invalid, 522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:59:25,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-26 11:59:26,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 235. [2023-11-26 11:59:26,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 185 states have (on average 1.2540540540540541) internal successors, (232), 200 states have internal predecessors, (232), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:59:26,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 296 transitions. [2023-11-26 11:59:26,028 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 296 transitions. Word has length 89 [2023-11-26 11:59:26,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:26,029 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 296 transitions. [2023-11-26 11:59:26,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-26 11:59:26,029 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 296 transitions. [2023-11-26 11:59:26,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-26 11:59:26,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:26,032 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2023-11-26 11:59:26,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:26,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:26,243 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:26,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:26,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1611627783, now seen corresponding path program 1 times [2023-11-26 11:59:26,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:26,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713090877] [2023-11-26 11:59:26,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:26,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:26,267 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:26,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977151801] [2023-11-26 11:59:26,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:26,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:26,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:26,269 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:26,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-11-26 11:59:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:26,342 INFO L262 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-26 11:59:26,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:27,273 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-26 11:59:27,273 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:28,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:28,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713090877] [2023-11-26 11:59:28,091 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:28,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977151801] [2023-11-26 11:59:28,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977151801] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:28,092 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:28,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-26 11:59:28,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430197020] [2023-11-26 11:59:28,092 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:28,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:59:28,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:28,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:59:28,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:59:28,094 INFO L87 Difference]: Start difference. First operand 235 states and 296 transitions. Second operand has 13 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-26 11:59:28,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:28,732 INFO L93 Difference]: Finished difference Result 272 states and 336 transitions. [2023-11-26 11:59:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 11:59:28,733 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) Word has length 90 [2023-11-26 11:59:28,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:28,735 INFO L225 Difference]: With dead ends: 272 [2023-11-26 11:59:28,735 INFO L226 Difference]: Without dead ends: 271 [2023-11-26 11:59:28,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-11-26 11:59:28,736 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 218 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:28,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 178 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 11:59:28,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-11-26 11:59:28,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 236. [2023-11-26 11:59:28,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 201 states have internal predecessors, (233), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:59:28,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 297 transitions. [2023-11-26 11:59:28,780 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 297 transitions. Word has length 90 [2023-11-26 11:59:28,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:28,780 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 297 transitions. [2023-11-26 11:59:28,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 6 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-26 11:59:28,781 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 297 transitions. [2023-11-26 11:59:28,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-11-26 11:59:28,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:28,782 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2023-11-26 11:59:28,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:28,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:28,988 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:28,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:28,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1579146196, now seen corresponding path program 1 times [2023-11-26 11:59:28,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:28,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472391081] [2023-11-26 11:59:28,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:28,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:29,000 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:29,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1029192582] [2023-11-26 11:59:29,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:29,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:29,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:29,005 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:29,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-11-26 11:59:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:29,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:59:29,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:29,109 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2023-11-26 11:59:29,110 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:29,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:29,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472391081] [2023-11-26 11:59:29,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:29,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029192582] [2023-11-26 11:59:29,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029192582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:29,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:29,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:59:29,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133109217] [2023-11-26 11:59:29,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:29,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:29,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:29,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:29,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:29,113 INFO L87 Difference]: Start difference. First operand 236 states and 297 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:59:29,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:29,364 INFO L93 Difference]: Finished difference Result 236 states and 297 transitions. [2023-11-26 11:59:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:59:29,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 91 [2023-11-26 11:59:29,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:29,369 INFO L225 Difference]: With dead ends: 236 [2023-11-26 11:59:29,369 INFO L226 Difference]: Without dead ends: 235 [2023-11-26 11:59:29,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-26 11:59:29,370 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 83 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:29,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 86 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:29,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-11-26 11:59:29,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2023-11-26 11:59:29,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 186 states have (on average 1.2204301075268817) internal successors, (227), 200 states have internal predecessors, (227), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:59:29,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 291 transitions. [2023-11-26 11:59:29,411 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 291 transitions. Word has length 91 [2023-11-26 11:59:29,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:29,411 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 291 transitions. [2023-11-26 11:59:29,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-26 11:59:29,412 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 291 transitions. [2023-11-26 11:59:29,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-26 11:59:29,413 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:29,413 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2023-11-26 11:59:29,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:29,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:29,619 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:29,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:29,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1708891735, now seen corresponding path program 1 times [2023-11-26 11:59:29,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:29,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752105813] [2023-11-26 11:59:29,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:29,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:29,630 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:29,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795707857] [2023-11-26 11:59:29,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:29,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:29,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:29,642 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:29,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-11-26 11:59:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:29,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-26 11:59:29,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:30,277 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2023-11-26 11:59:30,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:30,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:30,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752105813] [2023-11-26 11:59:30,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:30,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795707857] [2023-11-26 11:59:30,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795707857] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:30,734 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:30,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-26 11:59:30,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197522154] [2023-11-26 11:59:30,735 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:30,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:59:30,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:30,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:59:30,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:59:30,737 INFO L87 Difference]: Start difference. First operand 235 states and 291 transitions. Second operand has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-26 11:59:31,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:31,663 INFO L93 Difference]: Finished difference Result 279 states and 340 transitions. [2023-11-26 11:59:31,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 11:59:31,664 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 92 [2023-11-26 11:59:31,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:31,666 INFO L225 Difference]: With dead ends: 279 [2023-11-26 11:59:31,667 INFO L226 Difference]: Without dead ends: 275 [2023-11-26 11:59:31,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2023-11-26 11:59:31,668 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 165 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:31,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 353 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 11:59:31,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-11-26 11:59:31,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 245. [2023-11-26 11:59:31,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.2216494845360826) internal successors, (237), 208 states have internal predecessors, (237), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 11:59:31,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 305 transitions. [2023-11-26 11:59:31,709 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 305 transitions. Word has length 92 [2023-11-26 11:59:31,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:31,710 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 305 transitions. [2023-11-26 11:59:31,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.181818181818182) internal successors, (46), 12 states have internal predecessors, (46), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2023-11-26 11:59:31,710 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 305 transitions. [2023-11-26 11:59:31,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-26 11:59:31,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:31,712 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:31,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:31,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:31,917 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:31,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:31,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1294179065, now seen corresponding path program 3 times [2023-11-26 11:59:31,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:31,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700811510] [2023-11-26 11:59:31,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:31,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:31,928 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:31,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [67361843] [2023-11-26 11:59:31,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 11:59:31,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:31,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:31,930 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:31,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-11-26 11:59:31,994 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-26 11:59:31,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:59:31,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-26 11:59:31,998 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:33,094 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 26 proven. 29 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2023-11-26 11:59:33,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:33,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:33,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700811510] [2023-11-26 11:59:33,678 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:33,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67361843] [2023-11-26 11:59:33,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67361843] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:33,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:33,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-26 11:59:33,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523492094] [2023-11-26 11:59:33,679 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:33,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:59:33,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:33,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:59:33,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=224, Unknown=1, NotChecked=0, Total=272 [2023-11-26 11:59:33,681 INFO L87 Difference]: Start difference. First operand 245 states and 305 transitions. Second operand has 13 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-26 11:59:36,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:36,068 INFO L93 Difference]: Finished difference Result 247 states and 307 transitions. [2023-11-26 11:59:36,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 11:59:36,069 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 100 [2023-11-26 11:59:36,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:36,071 INFO L225 Difference]: With dead ends: 247 [2023-11-26 11:59:36,071 INFO L226 Difference]: Without dead ends: 243 [2023-11-26 11:59:36,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=120, Invalid=431, Unknown=1, NotChecked=0, Total=552 [2023-11-26 11:59:36,072 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 175 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:36,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 218 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 425 Invalid, 1 Unknown, 0 Unchecked, 1.8s Time] [2023-11-26 11:59:36,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-11-26 11:59:36,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 198. [2023-11-26 11:59:36,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 155 states have (on average 1.167741935483871) internal successors, (181), 165 states have internal predecessors, (181), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-26 11:59:36,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 241 transitions. [2023-11-26 11:59:36,114 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 241 transitions. Word has length 100 [2023-11-26 11:59:36,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:36,114 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 241 transitions. [2023-11-26 11:59:36,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 10 states have internal predecessors, (28), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2023-11-26 11:59:36,115 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 241 transitions. [2023-11-26 11:59:36,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-26 11:59:36,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:36,116 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:36,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:36,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:36,323 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:36,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:36,323 INFO L85 PathProgramCache]: Analyzing trace with hash -2086556248, now seen corresponding path program 1 times [2023-11-26 11:59:36,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:36,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518170612] [2023-11-26 11:59:36,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:36,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:36,334 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:36,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [522494179] [2023-11-26 11:59:36,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:36,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:36,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:36,338 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:36,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-11-26 11:59:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:36,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-26 11:59:36,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:36,915 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-26 11:59:36,915 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:38,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:38,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518170612] [2023-11-26 11:59:38,417 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:38,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522494179] [2023-11-26 11:59:38,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522494179] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:38,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:38,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2023-11-26 11:59:38,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713399408] [2023-11-26 11:59:38,418 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:38,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-26 11:59:38,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:38,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-26 11:59:38,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-11-26 11:59:38,419 INFO L87 Difference]: Start difference. First operand 198 states and 241 transitions. Second operand has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-26 11:59:39,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:39,269 INFO L93 Difference]: Finished difference Result 234 states and 285 transitions. [2023-11-26 11:59:39,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-26 11:59:39,270 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 106 [2023-11-26 11:59:39,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:39,272 INFO L225 Difference]: With dead ends: 234 [2023-11-26 11:59:39,272 INFO L226 Difference]: Without dead ends: 233 [2023-11-26 11:59:39,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-11-26 11:59:39,273 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 36 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:39,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 296 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-26 11:59:39,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-26 11:59:39,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 219. [2023-11-26 11:59:39,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 172 states have (on average 1.191860465116279) internal successors, (205), 182 states have internal predecessors, (205), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 11:59:39,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 273 transitions. [2023-11-26 11:59:39,324 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 273 transitions. Word has length 106 [2023-11-26 11:59:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:39,324 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 273 transitions. [2023-11-26 11:59:39,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.875) internal successors, (47), 9 states have internal predecessors, (47), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2023-11-26 11:59:39,325 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 273 transitions. [2023-11-26 11:59:39,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-26 11:59:39,326 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:39,326 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:39,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:39,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:39,532 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:39,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:39,533 INFO L85 PathProgramCache]: Analyzing trace with hash 569176906, now seen corresponding path program 1 times [2023-11-26 11:59:39,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:39,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073846422] [2023-11-26 11:59:39,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:39,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:39,542 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:39,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2009741087] [2023-11-26 11:59:39,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:39,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:39,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:39,544 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:39,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-11-26 11:59:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:39,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:59:39,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-26 11:59:39,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:59:39,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:39,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073846422] [2023-11-26 11:59:39,659 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:39,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009741087] [2023-11-26 11:59:39,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009741087] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:59:39,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:59:39,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:59:39,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179076225] [2023-11-26 11:59:39,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:59:39,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:39,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:39,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:39,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:39,663 INFO L87 Difference]: Start difference. First operand 219 states and 273 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:59:40,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:40,253 INFO L93 Difference]: Finished difference Result 219 states and 273 transitions. [2023-11-26 11:59:40,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:59:40,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 108 [2023-11-26 11:59:40,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:40,256 INFO L225 Difference]: With dead ends: 219 [2023-11-26 11:59:40,256 INFO L226 Difference]: Without dead ends: 215 [2023-11-26 11:59:40,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:59:40,257 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 45 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:40,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 117 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-26 11:59:40,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-11-26 11:59:40,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2023-11-26 11:59:40,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 169 states have (on average 1.183431952662722) internal successors, (200), 178 states have internal predecessors, (200), 34 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-26 11:59:40,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 268 transitions. [2023-11-26 11:59:40,311 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 268 transitions. Word has length 108 [2023-11-26 11:59:40,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:40,312 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 268 transitions. [2023-11-26 11:59:40,312 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 11:59:40,312 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 268 transitions. [2023-11-26 11:59:40,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-26 11:59:40,314 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:40,314 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-26 11:59:40,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:40,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:40,520 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:40,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:40,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2059823605, now seen corresponding path program 2 times [2023-11-26 11:59:40,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:40,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325577030] [2023-11-26 11:59:40,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:40,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:40,530 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:40,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [999369187] [2023-11-26 11:59:40,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:59:40,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:40,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:40,532 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:40,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-11-26 11:59:40,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:59:40,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:59:40,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:59:40,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-11-26 11:59:40,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:42,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:42,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325577030] [2023-11-26 11:59:42,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:42,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999369187] [2023-11-26 11:59:42,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999369187] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:42,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:42,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-11-26 11:59:42,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069674420] [2023-11-26 11:59:42,159 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:42,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 11:59:42,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:42,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 11:59:42,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:59:42,161 INFO L87 Difference]: Start difference. First operand 215 states and 268 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-26 11:59:42,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:42,460 INFO L93 Difference]: Finished difference Result 256 states and 312 transitions. [2023-11-26 11:59:42,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:59:42,461 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 112 [2023-11-26 11:59:42,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:42,463 INFO L225 Difference]: With dead ends: 256 [2023-11-26 11:59:42,463 INFO L226 Difference]: Without dead ends: 248 [2023-11-26 11:59:42,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:59:42,465 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 77 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:42,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 266 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:59:42,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-26 11:59:42,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 207. [2023-11-26 11:59:42,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 165 states have (on average 1.1393939393939394) internal successors, (188), 172 states have internal predecessors, (188), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:59:42,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 252 transitions. [2023-11-26 11:59:42,513 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 252 transitions. Word has length 112 [2023-11-26 11:59:42,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:42,513 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 252 transitions. [2023-11-26 11:59:42,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-26 11:59:42,514 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 252 transitions. [2023-11-26 11:59:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-26 11:59:42,515 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:42,516 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:42,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-11-26 11:59:42,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-26 11:59:42,722 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:42,722 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:42,722 INFO L85 PathProgramCache]: Analyzing trace with hash 700203380, now seen corresponding path program 1 times [2023-11-26 11:59:42,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:42,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968755619] [2023-11-26 11:59:42,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:42,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:42,749 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:42,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1914188995] [2023-11-26 11:59:42,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:42,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:42,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:42,751 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:42,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-11-26 11:59:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:59:42,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-26 11:59:42,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:42,894 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-26 11:59:42,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:43,025 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2023-11-26 11:59:43,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:43,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968755619] [2023-11-26 11:59:43,026 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:43,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914188995] [2023-11-26 11:59:43,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914188995] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:43,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:59:43,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2023-11-26 11:59:43,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612984604] [2023-11-26 11:59:43,026 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:43,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:59:43,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:43,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:59:43,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:43,028 INFO L87 Difference]: Start difference. First operand 207 states and 252 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-26 11:59:43,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:43,144 INFO L93 Difference]: Finished difference Result 251 states and 300 transitions. [2023-11-26 11:59:43,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:59:43,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 112 [2023-11-26 11:59:43,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:43,146 INFO L225 Difference]: With dead ends: 251 [2023-11-26 11:59:43,146 INFO L226 Difference]: Without dead ends: 183 [2023-11-26 11:59:43,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:59:43,147 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 10 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:43,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 212 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:59:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-26 11:59:43,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2023-11-26 11:59:43,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 143 states have (on average 1.1538461538461537) internal successors, (165), 150 states have internal predecessors, (165), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-26 11:59:43,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 225 transitions. [2023-11-26 11:59:43,188 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 225 transitions. Word has length 112 [2023-11-26 11:59:43,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:43,188 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 225 transitions. [2023-11-26 11:59:43,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-26 11:59:43,189 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 225 transitions. [2023-11-26 11:59:43,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-26 11:59:43,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:43,190 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-26 11:59:43,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:43,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:43,396 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:43,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:43,397 INFO L85 PathProgramCache]: Analyzing trace with hash 569977766, now seen corresponding path program 2 times [2023-11-26 11:59:43,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:43,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722861216] [2023-11-26 11:59:43,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:43,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:43,405 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:43,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1033342991] [2023-11-26 11:59:43,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:59:43,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:43,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:43,407 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:43,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-11-26 11:59:43,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:59:43,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:59:43,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-26 11:59:43,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:44,168 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-11-26 11:59:44,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:44,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:44,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722861216] [2023-11-26 11:59:44,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:44,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033342991] [2023-11-26 11:59:44,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033342991] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:44,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:44,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2023-11-26 11:59:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118540201] [2023-11-26 11:59:44,573 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:44,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 11:59:44,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:44,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 11:59:44,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:59:44,575 INFO L87 Difference]: Start difference. First operand 183 states and 225 transitions. Second operand has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-26 11:59:45,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:45,145 INFO L93 Difference]: Finished difference Result 242 states and 291 transitions. [2023-11-26 11:59:45,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:59:45,146 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 113 [2023-11-26 11:59:45,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:45,147 INFO L225 Difference]: With dead ends: 242 [2023-11-26 11:59:45,148 INFO L226 Difference]: Without dead ends: 241 [2023-11-26 11:59:45,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2023-11-26 11:59:45,149 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 85 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:45,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 292 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 11:59:45,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-11-26 11:59:45,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 205. [2023-11-26 11:59:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 163 states have (on average 1.1349693251533743) internal successors, (185), 170 states have internal predecessors, (185), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-26 11:59:45,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 249 transitions. [2023-11-26 11:59:45,196 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 249 transitions. Word has length 113 [2023-11-26 11:59:45,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:45,197 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 249 transitions. [2023-11-26 11:59:45,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.333333333333333) internal successors, (52), 12 states have internal predecessors, (52), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-26 11:59:45,197 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 249 transitions. [2023-11-26 11:59:45,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-26 11:59:45,199 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:45,199 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-26 11:59:45,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:45,405 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-26 11:59:45,406 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:45,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:45,406 INFO L85 PathProgramCache]: Analyzing trace with hash -2007178104, now seen corresponding path program 2 times [2023-11-26 11:59:45,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:45,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791124335] [2023-11-26 11:59:45,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:45,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:45,416 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:45,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [642287183] [2023-11-26 11:59:45,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:59:45,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:45,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:45,418 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:45,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-11-26 11:59:45,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:59:45,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:59:45,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 11:59:45,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:46,171 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-11-26 11:59:46,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:46,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:46,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791124335] [2023-11-26 11:59:46,695 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:46,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642287183] [2023-11-26 11:59:46,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642287183] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:59:46,696 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:59:46,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-11-26 11:59:46,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140177707] [2023-11-26 11:59:46,696 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:46,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 11:59:46,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:46,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 11:59:46,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:59:46,698 INFO L87 Difference]: Start difference. First operand 205 states and 249 transitions. Second operand has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-26 11:59:48,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:48,100 INFO L93 Difference]: Finished difference Result 276 states and 328 transitions. [2023-11-26 11:59:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 11:59:48,100 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) Word has length 115 [2023-11-26 11:59:48,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:48,102 INFO L225 Difference]: With dead ends: 276 [2023-11-26 11:59:48,102 INFO L226 Difference]: Without dead ends: 132 [2023-11-26 11:59:48,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2023-11-26 11:59:48,103 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 123 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:48,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 468 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-26 11:59:48,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2023-11-26 11:59:48,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 107. [2023-11-26 11:59:48,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 80 states have (on average 1.1) internal successors, (88), 86 states have internal predecessors, (88), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 11:59:48,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 124 transitions. [2023-11-26 11:59:48,132 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 124 transitions. Word has length 115 [2023-11-26 11:59:48,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:48,133 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 124 transitions. [2023-11-26 11:59:48,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.909090909090909) internal successors, (54), 12 states have internal predecessors, (54), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 5 states have call predecessors, (14), 6 states have call successors, (14) [2023-11-26 11:59:48,133 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 124 transitions. [2023-11-26 11:59:48,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-26 11:59:48,135 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:48,135 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:48,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-11-26 11:59:48,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:48,342 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-26 11:59:48,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:59:48,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1910349523, now seen corresponding path program 2 times [2023-11-26 11:59:48,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:59:48,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205808031] [2023-11-26 11:59:48,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:59:48,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:59:48,355 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 11:59:48,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [286492963] [2023-11-26 11:59:48,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:59:48,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:59:48,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:59:48,357 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:59:48,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-11-26 11:59:48,440 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 11:59:48,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:59:48,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 11:59:48,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:59:48,876 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 18 proven. 17 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-26 11:59:48,876 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:59:50,251 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-26 11:59:50,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:59:50,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205808031] [2023-11-26 11:59:50,252 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 11:59:50,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286492963] [2023-11-26 11:59:50,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286492963] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:59:50,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:59:50,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2023-11-26 11:59:50,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299950051] [2023-11-26 11:59:50,253 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:59:50,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-26 11:59:50,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:59:50,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-26 11:59:50,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2023-11-26 11:59:50,255 INFO L87 Difference]: Start difference. First operand 107 states and 124 transitions. Second operand has 16 states, 15 states have (on average 7.2) internal successors, (108), 16 states have internal predecessors, (108), 9 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2023-11-26 11:59:52,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:59:52,430 INFO L93 Difference]: Finished difference Result 236 states and 269 transitions. [2023-11-26 11:59:52,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-26 11:59:52,432 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 7.2) internal successors, (108), 16 states have internal predecessors, (108), 9 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) Word has length 135 [2023-11-26 11:59:52,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:59:52,434 INFO L225 Difference]: With dead ends: 236 [2023-11-26 11:59:52,434 INFO L226 Difference]: Without dead ends: 235 [2023-11-26 11:59:52,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=263, Invalid=493, Unknown=0, NotChecked=0, Total=756 [2023-11-26 11:59:52,435 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 366 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:59:52,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 380 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-26 11:59:52,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-11-26 11:59:52,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 169. [2023-11-26 11:59:52,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 136 states have (on average 1.161764705882353) internal successors, (158), 142 states have internal predecessors, (158), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-26 11:59:52,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 206 transitions. [2023-11-26 11:59:52,497 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 206 transitions. Word has length 135 [2023-11-26 11:59:52,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:59:52,497 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 206 transitions. [2023-11-26 11:59:52,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 7.2) internal successors, (108), 16 states have internal predecessors, (108), 9 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2023-11-26 11:59:52,498 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 206 transitions. [2023-11-26 11:59:52,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-26 11:59:52,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:59:52,500 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:59:52,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52279710-ed60-4659-a134-be0ce80d5c23/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0