./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-invgen/nested6.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4fc63b2a 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_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/nested6.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:41,934 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:42,021 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-31 21:59:42,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:42,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:42,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:42,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:42,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:42,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:42,054 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:42,055 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 21:59:42,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 21:59:42,056 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:42,057 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:42,057 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:42,058 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:42,058 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 21:59:42,058 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 21:59:42,059 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:42,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 21:59:42,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:42,067 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 21:59:42,067 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 21:59:42,067 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 21:59:42,067 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:42,068 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-31 21:59:42,068 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:42,068 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 21:59:42,068 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:42,068 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:42,069 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:42,069 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:42,069 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 21:59:42,069 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 21:59:42,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:42,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:42,072 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 21:59:42,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 21:59:42,073 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:42,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 21:59:42,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 21:59:42,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 21:59:42,075 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 21:59:42,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 21:59:42,076 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_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 327b0d5e70f014fe291a4771fe2bbb17cb1148e77fe8f6a261d10a47df8adacc [2024-10-31 21:59:42,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:42,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:42,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:42,425 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:42,425 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:42,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/loop-invgen/nested6.i Unable to find full path for "g++" [2024-10-31 21:59:44,491 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:44,727 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:44,729 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/sv-benchmarks/c/loop-invgen/nested6.i [2024-10-31 21:59:44,740 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/data/5fd2a6388/7576156396fb4ed694fdd04eca973da5/FLAG7217afa85 [2024-10-31 21:59:44,776 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/data/5fd2a6388/7576156396fb4ed694fdd04eca973da5 [2024-10-31 21:59:44,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:44,783 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:44,784 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:44,785 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:44,794 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:44,795 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:44" (1/1) ... [2024-10-31 21:59:44,798 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e38ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:44, skipping insertion in model container [2024-10-31 21:59:44,799 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:44" (1/1) ... [2024-10-31 21:59:44,823 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:45,027 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:45,037 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:45,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:45,077 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:45,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45 WrapperNode [2024-10-31 21:59:45,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:45,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:45,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:45,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:45,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,120 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2024-10-31 21:59:45,121 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:45,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:45,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:45,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:45,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,139 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,158 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-31 21:59:45,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,169 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:45,180 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:45,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:45,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:45,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (1/1) ... [2024-10-31 21:59:45,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 21:59:45,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:45,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:45,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:45,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:45,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:45,272 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-31 21:59:45,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-31 21:59:45,353 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:45,356 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:45,646 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-10-31 21:59:45,646 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:45,669 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:45,669 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 21:59:45,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:45 BoogieIcfgContainer [2024-10-31 21:59:45,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:45,673 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 21:59:45,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 21:59:45,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 21:59:45,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 09:59:44" (1/3) ... [2024-10-31 21:59:45,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a418201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:45, skipping insertion in model container [2024-10-31 21:59:45,679 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:45" (2/3) ... [2024-10-31 21:59:45,680 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a418201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 09:59:45, skipping insertion in model container [2024-10-31 21:59:45,681 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:45" (3/3) ... [2024-10-31 21:59:45,682 INFO L112 eAbstractionObserver]: Analyzing ICFG nested6.i [2024-10-31 21:59:45,702 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 21:59:45,702 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-10-31 21:59:45,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 21:59:45,819 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c0b24c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 21:59:45,819 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-31 21:59:45,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 42 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-31 21:59:45,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-31 21:59:45,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:45,833 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:45,834 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:45,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:45,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1806845353, now seen corresponding path program 1 times [2024-10-31 21:59:45,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:45,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893547756] [2024-10-31 21:59:45,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:45,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:46,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:46,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:46,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893547756] [2024-10-31 21:59:46,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893547756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:46,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:46,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 21:59:46,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920033640] [2024-10-31 21:59:46,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:46,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 21:59:46,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:46,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 21:59:46,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:46,194 INFO L87 Difference]: Start difference. First operand has 46 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 42 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:46,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:46,302 INFO L93 Difference]: Finished difference Result 108 states and 150 transitions. [2024-10-31 21:59:46,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 21:59:46,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-10-31 21:59:46,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:46,312 INFO L225 Difference]: With dead ends: 108 [2024-10-31 21:59:46,312 INFO L226 Difference]: Without dead ends: 61 [2024-10-31 21:59:46,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 21:59:46,320 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 20 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:46,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 82 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:46,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-31 21:59:46,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2024-10-31 21:59:46,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 39 states have (on average 1.5128205128205128) internal successors, (59), 50 states have internal predecessors, (59), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:46,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 71 transitions. [2024-10-31 21:59:46,373 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 71 transitions. Word has length 7 [2024-10-31 21:59:46,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:46,373 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 71 transitions. [2024-10-31 21:59:46,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:46,374 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 71 transitions. [2024-10-31 21:59:46,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-31 21:59:46,375 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:46,375 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:46,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 21:59:46,376 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:46,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:46,377 INFO L85 PathProgramCache]: Analyzing trace with hash 409973649, now seen corresponding path program 1 times [2024-10-31 21:59:46,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:46,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759722316] [2024-10-31 21:59:46,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:46,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:46,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:46,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:46,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759722316] [2024-10-31 21:59:46,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759722316] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:46,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:46,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:46,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177187516] [2024-10-31 21:59:46,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:46,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:46,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:46,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:46,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:46,489 INFO L87 Difference]: Start difference. First operand 56 states and 71 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:46,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:46,571 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2024-10-31 21:59:46,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:46,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-31 21:59:46,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:46,573 INFO L225 Difference]: With dead ends: 65 [2024-10-31 21:59:46,574 INFO L226 Difference]: Without dead ends: 63 [2024-10-31 21:59:46,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:46,576 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 18 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:46,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 111 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:46,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-10-31 21:59:46,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2024-10-31 21:59:46,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 53 states have internal predecessors, (62), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:46,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2024-10-31 21:59:46,589 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 11 [2024-10-31 21:59:46,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:46,590 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2024-10-31 21:59:46,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:46,591 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2024-10-31 21:59:46,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-31 21:59:46,591 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:46,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:46,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 21:59:46,592 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:46,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:46,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1151567687, now seen corresponding path program 1 times [2024-10-31 21:59:46,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:46,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56636882] [2024-10-31 21:59:46,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:46,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:46,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:46,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56636882] [2024-10-31 21:59:46,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56636882] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:46,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:46,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:46,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272092944] [2024-10-31 21:59:46,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:46,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:46,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:46,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:46,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:46,751 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:46,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:46,870 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2024-10-31 21:59:46,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:46,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-31 21:59:46,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:46,872 INFO L225 Difference]: With dead ends: 63 [2024-10-31 21:59:46,872 INFO L226 Difference]: Without dead ends: 62 [2024-10-31 21:59:46,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:46,874 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 28 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:46,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 123 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:46,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-31 21:59:46,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2024-10-31 21:59:46,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 53 states have internal predecessors, (61), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:46,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2024-10-31 21:59:46,892 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 13 [2024-10-31 21:59:46,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:46,892 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2024-10-31 21:59:46,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:46,893 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2024-10-31 21:59:46,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-31 21:59:46,894 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:46,894 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:46,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 21:59:46,895 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:46,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:46,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1361907972, now seen corresponding path program 1 times [2024-10-31 21:59:46,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:46,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968253417] [2024-10-31 21:59:46,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:46,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:47,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:47,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:47,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968253417] [2024-10-31 21:59:47,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968253417] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:47,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686454111] [2024-10-31 21:59:47,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:47,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:47,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:47,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:47,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 21:59:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:47,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:47,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:47,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:47,279 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:47,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686454111] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:47,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:47,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2024-10-31 21:59:47,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970158690] [2024-10-31 21:59:47,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:47,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:47,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:47,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:47,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-31 21:59:47,286 INFO L87 Difference]: Start difference. First operand 59 states and 73 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:47,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:47,440 INFO L93 Difference]: Finished difference Result 113 states and 135 transitions. [2024-10-31 21:59:47,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:47,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-31 21:59:47,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:47,447 INFO L225 Difference]: With dead ends: 113 [2024-10-31 21:59:47,447 INFO L226 Difference]: Without dead ends: 76 [2024-10-31 21:59:47,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:47,448 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 43 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:47,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 120 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:47,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-10-31 21:59:47,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 60. [2024-10-31 21:59:47,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.441860465116279) internal successors, (62), 54 states have internal predecessors, (62), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:47,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2024-10-31 21:59:47,472 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 14 [2024-10-31 21:59:47,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:47,473 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2024-10-31 21:59:47,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:47,474 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2024-10-31 21:59:47,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-31 21:59:47,475 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:47,476 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:47,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 21:59:47,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:47,677 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:47,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:47,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1338859830, now seen corresponding path program 1 times [2024-10-31 21:59:47,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:47,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161905841] [2024-10-31 21:59:47,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:47,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:47,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:47,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:47,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161905841] [2024-10-31 21:59:47,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161905841] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:47,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:47,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:47,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010230495] [2024-10-31 21:59:47,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:47,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:47,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:47,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:47,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:47,750 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:47,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:47,843 INFO L93 Difference]: Finished difference Result 79 states and 95 transitions. [2024-10-31 21:59:47,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:47,844 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-31 21:59:47,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:47,845 INFO L225 Difference]: With dead ends: 79 [2024-10-31 21:59:47,846 INFO L226 Difference]: Without dead ends: 78 [2024-10-31 21:59:47,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:47,847 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 42 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:47,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 132 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:47,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-31 21:59:47,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2024-10-31 21:59:47,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.4339622641509433) internal successors, (76), 65 states have internal predecessors, (76), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-31 21:59:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 94 transitions. [2024-10-31 21:59:47,862 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 94 transitions. Word has length 14 [2024-10-31 21:59:47,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:47,863 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 94 transitions. [2024-10-31 21:59:47,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:47,863 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions. [2024-10-31 21:59:47,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-31 21:59:47,864 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:47,864 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:47,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 21:59:47,865 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:47,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:47,866 INFO L85 PathProgramCache]: Analyzing trace with hash -467722053, now seen corresponding path program 1 times [2024-10-31 21:59:47,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:47,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930812428] [2024-10-31 21:59:47,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:47,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:48,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 21:59:48,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:48,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:48,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:48,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930812428] [2024-10-31 21:59:48,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930812428] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:48,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:48,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:59:48,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135192445] [2024-10-31 21:59:48,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:48,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 21:59:48,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:48,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 21:59:48,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:48,071 INFO L87 Difference]: Start difference. First operand 73 states and 94 transitions. Second operand has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:48,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:48,269 INFO L93 Difference]: Finished difference Result 111 states and 135 transitions. [2024-10-31 21:59:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:59:48,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2024-10-31 21:59:48,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:48,272 INFO L225 Difference]: With dead ends: 111 [2024-10-31 21:59:48,272 INFO L226 Difference]: Without dead ends: 110 [2024-10-31 21:59:48,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:48,274 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 78 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:48,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 176 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:48,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-31 21:59:48,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 73. [2024-10-31 21:59:48,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 65 states have internal predecessors, (75), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-31 21:59:48,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2024-10-31 21:59:48,297 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 20 [2024-10-31 21:59:48,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:48,301 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2024-10-31 21:59:48,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:48,302 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2024-10-31 21:59:48,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-31 21:59:48,303 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:48,303 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:48,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 21:59:48,303 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:48,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:48,304 INFO L85 PathProgramCache]: Analyzing trace with hash -2003296809, now seen corresponding path program 1 times [2024-10-31 21:59:48,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:48,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602175015] [2024-10-31 21:59:48,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:48,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:48,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 21:59:48,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:48,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602175015] [2024-10-31 21:59:48,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602175015] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:48,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469596502] [2024-10-31 21:59:48,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:48,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:48,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:48,424 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:48,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 21:59:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:48,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-31 21:59:48,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:48,572 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:48,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469596502] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:48,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:48,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2024-10-31 21:59:48,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104274028] [2024-10-31 21:59:48,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:48,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:48,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:48,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:48,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:48,574 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:48,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:48,732 INFO L93 Difference]: Finished difference Result 136 states and 168 transitions. [2024-10-31 21:59:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:48,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-10-31 21:59:48,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:48,734 INFO L225 Difference]: With dead ends: 136 [2024-10-31 21:59:48,734 INFO L226 Difference]: Without dead ends: 82 [2024-10-31 21:59:48,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-10-31 21:59:48,736 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 83 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:48,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 113 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:48,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-10-31 21:59:48,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 74. [2024-10-31 21:59:48,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 66 states have internal predecessors, (76), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-31 21:59:48,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2024-10-31 21:59:48,762 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 20 [2024-10-31 21:59:48,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:48,764 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2024-10-31 21:59:48,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 21:59:48,764 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2024-10-31 21:59:48,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-31 21:59:48,765 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:48,765 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:48,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 21:59:48,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-10-31 21:59:48,967 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:48,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:48,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1614481669, now seen corresponding path program 1 times [2024-10-31 21:59:48,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:48,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999893954] [2024-10-31 21:59:48,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:48,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 21:59:49,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:49,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:49,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999893954] [2024-10-31 21:59:49,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999893954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:49,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:49,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-31 21:59:49,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030754199] [2024-10-31 21:59:49,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:49,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-31 21:59:49,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:49,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-31 21:59:49,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:49,083 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:49,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:49,233 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2024-10-31 21:59:49,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 21:59:49,233 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-10-31 21:59:49,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:49,234 INFO L225 Difference]: With dead ends: 85 [2024-10-31 21:59:49,234 INFO L226 Difference]: Without dead ends: 84 [2024-10-31 21:59:49,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:49,236 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 46 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:49,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 147 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:49,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-31 21:59:49,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2024-10-31 21:59:49,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 71 states have internal predecessors, (81), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 21:59:49,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2024-10-31 21:59:49,250 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 21 [2024-10-31 21:59:49,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:49,250 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2024-10-31 21:59:49,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-31 21:59:49,251 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2024-10-31 21:59:49,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-31 21:59:49,252 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:49,252 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:49,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 21:59:49,252 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:49,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:49,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1646264128, now seen corresponding path program 1 times [2024-10-31 21:59:49,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:49,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211199431] [2024-10-31 21:59:49,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:49,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:59:49,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:49,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211199431] [2024-10-31 21:59:49,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211199431] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:49,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152313808] [2024-10-31 21:59:49,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:49,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:49,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:49,330 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:49,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-31 21:59:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:49,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:59:49,432 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-31 21:59:49,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152313808] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:49,433 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-31 21:59:49,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-31 21:59:49,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312467462] [2024-10-31 21:59:49,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:49,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:49,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:49,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:49,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:49,435 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:49,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:49,501 INFO L93 Difference]: Finished difference Result 83 states and 101 transitions. [2024-10-31 21:59:49,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:49,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2024-10-31 21:59:49,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:49,503 INFO L225 Difference]: With dead ends: 83 [2024-10-31 21:59:49,503 INFO L226 Difference]: Without dead ends: 80 [2024-10-31 21:59:49,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:49,504 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 32 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:49,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 128 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:49,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-31 21:59:49,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2024-10-31 21:59:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 68 states have internal predecessors, (78), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 21:59:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2024-10-31 21:59:49,515 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 29 [2024-10-31 21:59:49,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:49,516 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2024-10-31 21:59:49,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:49,516 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2024-10-31 21:59:49,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-31 21:59:49,517 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:49,517 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:49,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-31 21:59:49,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:49,722 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:49,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:49,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1623215986, now seen corresponding path program 1 times [2024-10-31 21:59:49,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:49,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183170460] [2024-10-31 21:59:49,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:49,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:49,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:49,803 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:59:49,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:49,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183170460] [2024-10-31 21:59:49,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183170460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:49,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:49,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:49,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743663972] [2024-10-31 21:59:49,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:49,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:49,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:49,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:49,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:49,805 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:49,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:49,867 INFO L93 Difference]: Finished difference Result 127 states and 164 transitions. [2024-10-31 21:59:49,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:49,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2024-10-31 21:59:49,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:49,868 INFO L225 Difference]: With dead ends: 127 [2024-10-31 21:59:49,868 INFO L226 Difference]: Without dead ends: 79 [2024-10-31 21:59:49,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:49,869 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 17 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:49,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 76 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:49,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2024-10-31 21:59:49,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2024-10-31 21:59:49,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 61 states have (on average 1.3114754098360655) internal successors, (80), 70 states have internal predecessors, (80), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-31 21:59:49,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 100 transitions. [2024-10-31 21:59:49,896 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 100 transitions. Word has length 29 [2024-10-31 21:59:49,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:49,897 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 100 transitions. [2024-10-31 21:59:49,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:49,897 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 100 transitions. [2024-10-31 21:59:49,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-31 21:59:49,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:49,899 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:49,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-31 21:59:49,899 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:49,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:49,900 INFO L85 PathProgramCache]: Analyzing trace with hash 505419640, now seen corresponding path program 1 times [2024-10-31 21:59:49,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:49,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735030093] [2024-10-31 21:59:49,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:49,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:59:50,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:50,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735030093] [2024-10-31 21:59:50,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735030093] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:50,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886024314] [2024-10-31 21:59:50,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:50,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:50,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:50,030 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:50,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-31 21:59:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:50,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:50,159 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:59:50,159 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 21:59:50,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886024314] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:50,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:50,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-31 21:59:50,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370860579] [2024-10-31 21:59:50,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:50,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-31 21:59:50,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:50,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-31 21:59:50,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:59:50,270 INFO L87 Difference]: Start difference. First operand 79 states and 100 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 21:59:50,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:50,393 INFO L93 Difference]: Finished difference Result 112 states and 138 transitions. [2024-10-31 21:59:50,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 21:59:50,394 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 30 [2024-10-31 21:59:50,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:50,396 INFO L225 Difference]: With dead ends: 112 [2024-10-31 21:59:50,396 INFO L226 Difference]: Without dead ends: 109 [2024-10-31 21:59:50,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:59:50,397 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 49 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:50,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 196 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:50,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-31 21:59:50,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 102. [2024-10-31 21:59:50,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 82 states have (on average 1.3048780487804879) internal successors, (107), 91 states have internal predecessors, (107), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-31 21:59:50,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 133 transitions. [2024-10-31 21:59:50,427 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 133 transitions. Word has length 30 [2024-10-31 21:59:50,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:50,429 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 133 transitions. [2024-10-31 21:59:50,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 10 states have internal predecessors, (52), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-31 21:59:50,429 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 133 transitions. [2024-10-31 21:59:50,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-31 21:59:50,430 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:50,430 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:50,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-31 21:59:50,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:50,633 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:50,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:50,633 INFO L85 PathProgramCache]: Analyzing trace with hash -282806190, now seen corresponding path program 1 times [2024-10-31 21:59:50,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:50,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377807199] [2024-10-31 21:59:50,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:50,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-31 21:59:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-31 21:59:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,798 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:50,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:50,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377807199] [2024-10-31 21:59:50,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377807199] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:50,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886349605] [2024-10-31 21:59:50,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:50,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:50,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:50,802 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:50,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-31 21:59:50,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:50,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 21:59:50,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:50,954 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:50,954 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:51,096 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:51,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886349605] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:51,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:51,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-10-31 21:59:51,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469116605] [2024-10-31 21:59:51,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:51,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-31 21:59:51,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:51,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-31 21:59:51,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2024-10-31 21:59:51,099 INFO L87 Difference]: Start difference. First operand 102 states and 133 transitions. Second operand has 19 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 19 states have internal predecessors, (58), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:51,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:51,631 INFO L93 Difference]: Finished difference Result 269 states and 346 transitions. [2024-10-31 21:59:51,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-31 21:59:51,632 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 19 states have internal predecessors, (58), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Word has length 32 [2024-10-31 21:59:51,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:51,635 INFO L225 Difference]: With dead ends: 269 [2024-10-31 21:59:51,635 INFO L226 Difference]: Without dead ends: 268 [2024-10-31 21:59:51,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2024-10-31 21:59:51,637 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 218 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:51,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 587 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 21:59:51,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-10-31 21:59:51,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 123. [2024-10-31 21:59:51,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.28) internal successors, (128), 109 states have internal predecessors, (128), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 21:59:51,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 160 transitions. [2024-10-31 21:59:51,665 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 160 transitions. Word has length 32 [2024-10-31 21:59:51,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:51,665 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 160 transitions. [2024-10-31 21:59:51,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 19 states have internal predecessors, (58), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-31 21:59:51,666 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 160 transitions. [2024-10-31 21:59:51,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-31 21:59:51,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:51,667 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:51,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:51,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:51,868 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:51,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:51,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1604374399, now seen corresponding path program 1 times [2024-10-31 21:59:51,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:51,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729199897] [2024-10-31 21:59:51,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:51,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:51,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:52,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:52,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:52,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 21:59:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:52,111 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 21:59:52,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:52,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729199897] [2024-10-31 21:59:52,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729199897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:52,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:52,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-31 21:59:52,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212130695] [2024-10-31 21:59:52,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:52,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-31 21:59:52,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:52,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 21:59:52,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-31 21:59:52,113 INFO L87 Difference]: Start difference. First operand 123 states and 160 transitions. Second operand has 9 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:52,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:52,368 INFO L93 Difference]: Finished difference Result 171 states and 218 transitions. [2024-10-31 21:59:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-31 21:59:52,369 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-10-31 21:59:52,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:52,373 INFO L225 Difference]: With dead ends: 171 [2024-10-31 21:59:52,373 INFO L226 Difference]: Without dead ends: 170 [2024-10-31 21:59:52,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-10-31 21:59:52,374 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 57 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:52,374 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 241 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:59:52,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-10-31 21:59:52,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 123. [2024-10-31 21:59:52,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 100 states have (on average 1.27) internal successors, (127), 109 states have internal predecessors, (127), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-31 21:59:52,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 159 transitions. [2024-10-31 21:59:52,404 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 159 transitions. Word has length 35 [2024-10-31 21:59:52,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:52,405 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 159 transitions. [2024-10-31 21:59:52,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:52,405 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 159 transitions. [2024-10-31 21:59:52,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-31 21:59:52,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:52,407 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-31 21:59:52,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-31 21:59:52,408 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:52,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:52,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1804001097, now seen corresponding path program 1 times [2024-10-31 21:59:52,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:52,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400295835] [2024-10-31 21:59:52,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:52,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:52,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:52,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:52,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:52,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:52,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 21:59:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:52,578 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 21:59:52,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:52,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400295835] [2024-10-31 21:59:52,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400295835] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:52,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30146208] [2024-10-31 21:59:52,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:52,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:52,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:52,587 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:52,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-31 21:59:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:52,641 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 21:59:52,643 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:52,721 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 21:59:52,722 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:52,859 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 21:59:52,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30146208] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:52,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:52,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-10-31 21:59:52,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040953910] [2024-10-31 21:59:52,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:52,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-31 21:59:52,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:52,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-31 21:59:52,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2024-10-31 21:59:52,862 INFO L87 Difference]: Start difference. First operand 123 states and 159 transitions. Second operand has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-31 21:59:53,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:53,633 INFO L93 Difference]: Finished difference Result 286 states and 388 transitions. [2024-10-31 21:59:53,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-10-31 21:59:53,633 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 36 [2024-10-31 21:59:53,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:53,636 INFO L225 Difference]: With dead ends: 286 [2024-10-31 21:59:53,636 INFO L226 Difference]: Without dead ends: 284 [2024-10-31 21:59:53,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=987, Unknown=0, NotChecked=0, Total=1260 [2024-10-31 21:59:53,638 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 221 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:53,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 425 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-31 21:59:53,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-10-31 21:59:53,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 178. [2024-10-31 21:59:53,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 147 states have (on average 1.272108843537415) internal successors, (187), 157 states have internal predecessors, (187), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-31 21:59:53,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 235 transitions. [2024-10-31 21:59:53,672 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 235 transitions. Word has length 36 [2024-10-31 21:59:53,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:53,673 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 235 transitions. [2024-10-31 21:59:53,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 6 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-10-31 21:59:53,674 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 235 transitions. [2024-10-31 21:59:53,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-31 21:59:53,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:53,676 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:53,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-31 21:59:53,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-31 21:59:53,877 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:53,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:53,878 INFO L85 PathProgramCache]: Analyzing trace with hash 289194526, now seen corresponding path program 1 times [2024-10-31 21:59:53,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:53,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414992397] [2024-10-31 21:59:53,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:53,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:53,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:53,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:53,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:53,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:53,955 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-31 21:59:53,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:53,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414992397] [2024-10-31 21:59:53,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414992397] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:53,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:53,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-31 21:59:53,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348605239] [2024-10-31 21:59:53,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:53,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 21:59:53,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:53,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 21:59:53,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:53,958 INFO L87 Difference]: Start difference. First operand 178 states and 235 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:54,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:54,015 INFO L93 Difference]: Finished difference Result 178 states and 235 transitions. [2024-10-31 21:59:54,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 21:59:54,015 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2024-10-31 21:59:54,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:54,017 INFO L225 Difference]: With dead ends: 178 [2024-10-31 21:59:54,017 INFO L226 Difference]: Without dead ends: 177 [2024-10-31 21:59:54,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 21:59:54,018 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 19 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:54,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 70 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:54,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-10-31 21:59:54,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-10-31 21:59:54,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 147 states have (on average 1.2653061224489797) internal successors, (186), 156 states have internal predecessors, (186), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-31 21:59:54,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 234 transitions. [2024-10-31 21:59:54,046 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 234 transitions. Word has length 41 [2024-10-31 21:59:54,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:54,046 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 234 transitions. [2024-10-31 21:59:54,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-31 21:59:54,047 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 234 transitions. [2024-10-31 21:59:54,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-31 21:59:54,047 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:54,048 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-10-31 21:59:54,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-31 21:59:54,048 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:54,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:54,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1337564412, now seen corresponding path program 1 times [2024-10-31 21:59:54,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:54,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43449889] [2024-10-31 21:59:54,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:54,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:54,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-31 21:59:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,199 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 21:59:54,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:54,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43449889] [2024-10-31 21:59:54,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43449889] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:54,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280411583] [2024-10-31 21:59:54,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:54,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:54,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:54,202 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:54,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-31 21:59:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:54,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 21:59:54,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:54,437 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 21:59:54,438 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-31 21:59:54,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280411583] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:54,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:54,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-10-31 21:59:54,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68232053] [2024-10-31 21:59:54,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:54,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-31 21:59:54,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:54,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-31 21:59:54,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2024-10-31 21:59:54,611 INFO L87 Difference]: Start difference. First operand 177 states and 234 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-31 21:59:54,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:54,974 INFO L93 Difference]: Finished difference Result 256 states and 332 transitions. [2024-10-31 21:59:54,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-31 21:59:54,975 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 4 states have call successors, (8), 2 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 42 [2024-10-31 21:59:54,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:54,977 INFO L225 Difference]: With dead ends: 256 [2024-10-31 21:59:54,977 INFO L226 Difference]: Without dead ends: 181 [2024-10-31 21:59:54,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2024-10-31 21:59:54,981 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 62 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:54,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 296 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 21:59:54,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-10-31 21:59:55,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 177. [2024-10-31 21:59:55,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 147 states have (on average 1.2585034013605443) internal successors, (185), 156 states have internal predecessors, (185), 24 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-31 21:59:55,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 233 transitions. [2024-10-31 21:59:55,010 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 233 transitions. Word has length 42 [2024-10-31 21:59:55,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:55,010 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 233 transitions. [2024-10-31 21:59:55,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-31 21:59:55,011 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 233 transitions. [2024-10-31 21:59:55,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-31 21:59:55,012 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:55,012 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:55,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-31 21:59:55,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-31 21:59:55,214 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:55,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:55,217 INFO L85 PathProgramCache]: Analyzing trace with hash 548066547, now seen corresponding path program 1 times [2024-10-31 21:59:55,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:55,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937955285] [2024-10-31 21:59:55,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:55,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:55,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 21:59:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 21:59:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-31 21:59:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,421 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 21:59:55,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:55,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937955285] [2024-10-31 21:59:55,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937955285] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:55,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277852457] [2024-10-31 21:59:55,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:55,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:55,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:55,426 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:55,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-31 21:59:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:55,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 21:59:55,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:55,575 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 21:59:55,575 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:55,747 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-31 21:59:55,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277852457] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:55,748 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:55,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-10-31 21:59:55,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666610349] [2024-10-31 21:59:55,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:55,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-31 21:59:55,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:55,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-31 21:59:55,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-10-31 21:59:55,751 INFO L87 Difference]: Start difference. First operand 177 states and 233 transitions. Second operand has 17 states, 16 states have (on average 3.0625) internal successors, (49), 17 states have internal predecessors, (49), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-10-31 21:59:56,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:56,199 INFO L93 Difference]: Finished difference Result 269 states and 360 transitions. [2024-10-31 21:59:56,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-31 21:59:56,200 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 17 states have internal predecessors, (49), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 53 [2024-10-31 21:59:56,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:56,202 INFO L225 Difference]: With dead ends: 269 [2024-10-31 21:59:56,202 INFO L226 Difference]: Without dead ends: 268 [2024-10-31 21:59:56,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2024-10-31 21:59:56,204 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 269 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:56,204 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 215 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 21:59:56,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-10-31 21:59:56,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 258. [2024-10-31 21:59:56,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 210 states have (on average 1.2857142857142858) internal successors, (270), 225 states have internal predecessors, (270), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-31 21:59:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 354 transitions. [2024-10-31 21:59:56,244 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 354 transitions. Word has length 53 [2024-10-31 21:59:56,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:56,246 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 354 transitions. [2024-10-31 21:59:56,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.0625) internal successors, (49), 17 states have internal predecessors, (49), 6 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-10-31 21:59:56,246 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 354 transitions. [2024-10-31 21:59:56,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-31 21:59:56,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:56,247 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2024-10-31 21:59:56,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-31 21:59:56,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:56,453 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:56,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:56,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1456806200, now seen corresponding path program 2 times [2024-10-31 21:59:56,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:56,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887090844] [2024-10-31 21:59:56,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:56,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:56,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:56,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:56,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:56,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 21:59:56,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:56,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 21:59:56,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:56,548 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-10-31 21:59:56,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:56,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887090844] [2024-10-31 21:59:56,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887090844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:56,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:56,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 21:59:56,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058910878] [2024-10-31 21:59:56,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:56,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 21:59:56,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:56,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 21:59:56,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-31 21:59:56,551 INFO L87 Difference]: Start difference. First operand 258 states and 354 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:56,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:56,766 INFO L93 Difference]: Finished difference Result 347 states and 482 transitions. [2024-10-31 21:59:56,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 21:59:56,767 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 57 [2024-10-31 21:59:56,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:56,769 INFO L225 Difference]: With dead ends: 347 [2024-10-31 21:59:56,769 INFO L226 Difference]: Without dead ends: 346 [2024-10-31 21:59:56,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-31 21:59:56,770 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 75 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:56,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 115 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 21:59:56,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-10-31 21:59:56,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 258. [2024-10-31 21:59:56,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 210 states have (on average 1.2666666666666666) internal successors, (266), 225 states have internal predecessors, (266), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-10-31 21:59:56,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 350 transitions. [2024-10-31 21:59:56,816 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 350 transitions. Word has length 57 [2024-10-31 21:59:56,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:56,816 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 350 transitions. [2024-10-31 21:59:56,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 21:59:56,816 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 350 transitions. [2024-10-31 21:59:56,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-31 21:59:56,817 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:56,817 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:56,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-31 21:59:56,818 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:56,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:56,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1293778775, now seen corresponding path program 1 times [2024-10-31 21:59:56,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:56,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857894381] [2024-10-31 21:59:56,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:56,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:56,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-10-31 21:59:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-31 21:59:57,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 21:59:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,067 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 21:59:57,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:57,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857894381] [2024-10-31 21:59:57,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857894381] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:57,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592606286] [2024-10-31 21:59:57,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:57,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:57,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:57,070 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:57,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-31 21:59:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:57,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 21:59:57,125 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:57,252 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 21:59:57,252 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 21:59:57,459 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 21:59:57,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592606286] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 21:59:57,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 21:59:57,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 30 [2024-10-31 21:59:57,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672593437] [2024-10-31 21:59:57,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 21:59:57,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-31 21:59:57,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:57,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-31 21:59:57,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=767, Unknown=0, NotChecked=0, Total=930 [2024-10-31 21:59:57,464 INFO L87 Difference]: Start difference. First operand 258 states and 350 transitions. Second operand has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 12 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 12 states have call successors, (15) [2024-10-31 21:59:59,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:59,256 INFO L93 Difference]: Finished difference Result 795 states and 1120 transitions. [2024-10-31 21:59:59,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-10-31 21:59:59,258 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 12 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 12 states have call successors, (15) Word has length 58 [2024-10-31 21:59:59,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:59,263 INFO L225 Difference]: With dead ends: 795 [2024-10-31 21:59:59,263 INFO L226 Difference]: Without dead ends: 794 [2024-10-31 21:59:59,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1832 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1059, Invalid=4947, Unknown=0, NotChecked=0, Total=6006 [2024-10-31 21:59:59,266 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 631 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:59,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 368 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-31 21:59:59,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-10-31 21:59:59,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 314. [2024-10-31 21:59:59,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 258 states have (on average 1.248062015503876) internal successors, (322), 273 states have internal predecessors, (322), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-31 21:59:59,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 422 transitions. [2024-10-31 21:59:59,361 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 422 transitions. Word has length 58 [2024-10-31 21:59:59,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:59,361 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 422 transitions. [2024-10-31 21:59:59,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 12 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 11 states have call predecessors, (15), 12 states have call successors, (15) [2024-10-31 21:59:59,362 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 422 transitions. [2024-10-31 21:59:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-31 21:59:59,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:59,363 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:59,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:59,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:59,564 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:59,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:59,565 INFO L85 PathProgramCache]: Analyzing trace with hash -591359811, now seen corresponding path program 1 times [2024-10-31 21:59:59,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:59,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213413088] [2024-10-31 21:59:59,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:59,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 21:59:59,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 21:59:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 21:59:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,657 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-31 21:59:59,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:59,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213413088] [2024-10-31 21:59:59,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213413088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 21:59:59,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 21:59:59,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 21:59:59,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150644364] [2024-10-31 21:59:59,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 21:59:59,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-31 21:59:59,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 21:59:59,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-31 21:59:59,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-31 21:59:59,660 INFO L87 Difference]: Start difference. First operand 314 states and 422 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 21:59:59,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 21:59:59,766 INFO L93 Difference]: Finished difference Result 314 states and 422 transitions. [2024-10-31 21:59:59,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-31 21:59:59,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2024-10-31 21:59:59,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 21:59:59,768 INFO L225 Difference]: With dead ends: 314 [2024-10-31 21:59:59,768 INFO L226 Difference]: Without dead ends: 313 [2024-10-31 21:59:59,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-31 21:59:59,769 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 30 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 21:59:59,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 69 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 21:59:59,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-10-31 21:59:59,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2024-10-31 21:59:59,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 258 states have (on average 1.2325581395348837) internal successors, (318), 272 states have internal predecessors, (318), 50 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-10-31 21:59:59,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 418 transitions. [2024-10-31 21:59:59,819 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 418 transitions. Word has length 59 [2024-10-31 21:59:59,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 21:59:59,820 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 418 transitions. [2024-10-31 21:59:59,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 21:59:59,820 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 418 transitions. [2024-10-31 21:59:59,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-31 21:59:59,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 21:59:59,821 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:59,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-31 21:59:59,822 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 21:59:59,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:59,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1062538716, now seen corresponding path program 2 times [2024-10-31 21:59:59,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:59,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175442831] [2024-10-31 21:59:59,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:59,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 21:59:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 21:59:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 21:59:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 21:59:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,887 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-10-31 21:59:59,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 21:59:59,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175442831] [2024-10-31 21:59:59,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175442831] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 21:59:59,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663748842] [2024-10-31 21:59:59,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 21:59:59,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 21:59:59,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:59,891 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 21:59:59,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-31 21:59:59,932 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 21:59:59,932 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 21:59:59,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-31 21:59:59,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:59,996 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-10-31 21:59:59,996 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-10-31 22:00:00,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663748842] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:00,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:00,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-10-31 22:00:00,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680599168] [2024-10-31 22:00:00,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:00,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-31 22:00:00,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:00,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:00,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:00,088 INFO L87 Difference]: Start difference. First operand 313 states and 418 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:00:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:00,178 INFO L93 Difference]: Finished difference Result 313 states and 418 transitions. [2024-10-31 22:00:00,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-31 22:00:00,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2024-10-31 22:00:00,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:00,180 INFO L225 Difference]: With dead ends: 313 [2024-10-31 22:00:00,181 INFO L226 Difference]: Without dead ends: 312 [2024-10-31 22:00:00,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-31 22:00:00,182 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 29 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:00,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 58 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-31 22:00:00,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-10-31 22:00:00,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 264. [2024-10-31 22:00:00,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 217 states have (on average 1.2258064516129032) internal successors, (266), 228 states have internal predecessors, (266), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-10-31 22:00:00,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 352 transitions. [2024-10-31 22:00:00,228 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 352 transitions. Word has length 59 [2024-10-31 22:00:00,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:00,229 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 352 transitions. [2024-10-31 22:00:00,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-31 22:00:00,230 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 352 transitions. [2024-10-31 22:00:00,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-10-31 22:00:00,231 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:00,231 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:00,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-31 22:00:00,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-10-31 22:00:00,432 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:00:00,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:00,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1985593289, now seen corresponding path program 2 times [2024-10-31 22:00:00,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:00,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730903084] [2024-10-31 22:00:00,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:00,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:00,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:00:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:00:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:00:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:00:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:00:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-31 22:00:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-31 22:00:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,663 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-31 22:00:00,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:00,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730903084] [2024-10-31 22:00:00,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730903084] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:00,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614616013] [2024-10-31 22:00:00,664 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:00,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:00,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:00,666 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:00,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-31 22:00:00,711 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:00:00,711 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:00,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:00:00,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:00,817 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-10-31 22:00:00,817 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:00,939 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-10-31 22:00:00,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614616013] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:00,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:00,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 17 [2024-10-31 22:00:00,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314752939] [2024-10-31 22:00:00,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:00,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-31 22:00:00,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:00,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-31 22:00:00,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2024-10-31 22:00:00,942 INFO L87 Difference]: Start difference. First operand 264 states and 352 transitions. Second operand has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-10-31 22:00:01,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:01,837 INFO L93 Difference]: Finished difference Result 341 states and 462 transitions. [2024-10-31 22:00:01,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-31 22:00:01,837 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 66 [2024-10-31 22:00:01,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:01,839 INFO L225 Difference]: With dead ends: 341 [2024-10-31 22:00:01,839 INFO L226 Difference]: Without dead ends: 340 [2024-10-31 22:00:01,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 137 SyntacticMatches, 4 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=597, Invalid=2373, Unknown=0, NotChecked=0, Total=2970 [2024-10-31 22:00:01,841 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 269 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:01,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 182 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:00:01,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-10-31 22:00:01,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 155. [2024-10-31 22:00:01,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 125 states have (on average 1.224) internal successors, (153), 135 states have internal predecessors, (153), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-31 22:00:01,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 207 transitions. [2024-10-31 22:00:01,879 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 207 transitions. Word has length 66 [2024-10-31 22:00:01,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:01,879 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 207 transitions. [2024-10-31 22:00:01,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.176470588235294) internal successors, (54), 17 states have internal predecessors, (54), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-10-31 22:00:01,880 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 207 transitions. [2024-10-31 22:00:01,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-10-31 22:00:01,881 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:01,881 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:01,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:02,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-31 22:00:02,082 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:00:02,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash -919040558, now seen corresponding path program 3 times [2024-10-31 22:00:02,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:02,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124557535] [2024-10-31 22:00:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:00:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:00:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:00:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:00:02,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:00:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:00:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-10-31 22:00:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,208 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-10-31 22:00:02,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:02,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124557535] [2024-10-31 22:00:02,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124557535] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:02,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:02,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-31 22:00:02,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342575414] [2024-10-31 22:00:02,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:02,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-31 22:00:02,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:02,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-31 22:00:02,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-31 22:00:02,211 INFO L87 Difference]: Start difference. First operand 155 states and 207 transitions. Second operand has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-31 22:00:02,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:02,487 INFO L93 Difference]: Finished difference Result 214 states and 295 transitions. [2024-10-31 22:00:02,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-31 22:00:02,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 72 [2024-10-31 22:00:02,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:02,490 INFO L225 Difference]: With dead ends: 214 [2024-10-31 22:00:02,490 INFO L226 Difference]: Without dead ends: 213 [2024-10-31 22:00:02,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:00:02,491 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 57 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:02,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 197 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-31 22:00:02,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-10-31 22:00:02,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 124. [2024-10-31 22:00:02,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 101 states have (on average 1.198019801980198) internal successors, (121), 108 states have internal predecessors, (121), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-10-31 22:00:02,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 163 transitions. [2024-10-31 22:00:02,525 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 163 transitions. Word has length 72 [2024-10-31 22:00:02,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:02,526 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 163 transitions. [2024-10-31 22:00:02,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.857142857142857) internal successors, (34), 8 states have internal predecessors, (34), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-31 22:00:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 163 transitions. [2024-10-31 22:00:02,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-10-31 22:00:02,527 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:02,527 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:02,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-31 22:00:02,527 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:00:02,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:02,528 INFO L85 PathProgramCache]: Analyzing trace with hash -804058116, now seen corresponding path program 1 times [2024-10-31 22:00:02,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:02,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536227715] [2024-10-31 22:00:02,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:00:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:00:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:00:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:00:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-31 22:00:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-31 22:00:02,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-31 22:00:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-31 22:00:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,782 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 19 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-10-31 22:00:02,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:02,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536227715] [2024-10-31 22:00:02,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536227715] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:02,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642397999] [2024-10-31 22:00:02,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:02,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:02,786 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:02,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-31 22:00:02,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:00:02,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:03,054 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 95 proven. 12 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-10-31 22:00:03,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:03,271 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 31 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-31 22:00:03,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642397999] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:03,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:03,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 22 [2024-10-31 22:00:03,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800786647] [2024-10-31 22:00:03,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:03,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-10-31 22:00:03,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:03,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-10-31 22:00:03,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2024-10-31 22:00:03,285 INFO L87 Difference]: Start difference. First operand 124 states and 163 transitions. Second operand has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-31 22:00:03,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:03,645 INFO L93 Difference]: Finished difference Result 236 states and 312 transitions. [2024-10-31 22:00:03,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-31 22:00:03,646 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (14), 2 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 75 [2024-10-31 22:00:03,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:03,647 INFO L225 Difference]: With dead ends: 236 [2024-10-31 22:00:03,648 INFO L226 Difference]: Without dead ends: 184 [2024-10-31 22:00:03,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 150 SyntacticMatches, 8 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2024-10-31 22:00:03,649 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 112 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:03,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 215 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-31 22:00:03,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-31 22:00:03,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 155. [2024-10-31 22:00:03,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 126 states have (on average 1.1904761904761905) internal successors, (150), 135 states have internal predecessors, (150), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-31 22:00:03,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 204 transitions. [2024-10-31 22:00:03,708 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 204 transitions. Word has length 75 [2024-10-31 22:00:03,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:03,709 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 204 transitions. [2024-10-31 22:00:03,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.909090909090909) internal successors, (64), 22 states have internal predecessors, (64), 6 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-10-31 22:00:03,709 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 204 transitions. [2024-10-31 22:00:03,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-31 22:00:03,710 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:00:03,710 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:03,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:03,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:03,911 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-31 22:00:03,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:03,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1856171848, now seen corresponding path program 2 times [2024-10-31 22:00:03,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:03,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422593266] [2024-10-31 22:00:03,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:03,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-31 22:00:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-31 22:00:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-31 22:00:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-31 22:00:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-31 22:00:04,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-31 22:00:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-31 22:00:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-10-31 22:00:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-31 22:00:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-10-31 22:00:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,094 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-10-31 22:00:04,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:04,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422593266] [2024-10-31 22:00:04,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422593266] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:04,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646366455] [2024-10-31 22:00:04,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:04,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:04,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,097 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-31 22:00:04,142 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-31 22:00:04,143 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:04,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 22:00:04,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-10-31 22:00:04,251 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:04,427 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2024-10-31 22:00:04,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646366455] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:04,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:04,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 14 [2024-10-31 22:00:04,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896860970] [2024-10-31 22:00:04,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:04,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-31 22:00:04,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:04,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-31 22:00:04,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:00:04,430 INFO L87 Difference]: Start difference. First operand 155 states and 204 transitions. Second operand has 15 states, 14 states have (on average 5.214285714285714) internal successors, (73), 15 states have internal predecessors, (73), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-31 22:00:04,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:04,990 INFO L93 Difference]: Finished difference Result 223 states and 297 transitions. [2024-10-31 22:00:04,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-31 22:00:04,991 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.214285714285714) internal successors, (73), 15 states have internal predecessors, (73), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 90 [2024-10-31 22:00:04,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-31 22:00:04,991 INFO L225 Difference]: With dead ends: 223 [2024-10-31 22:00:04,992 INFO L226 Difference]: Without dead ends: 0 [2024-10-31 22:00:04,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=266, Invalid=924, Unknown=0, NotChecked=0, Total=1190 [2024-10-31 22:00:04,994 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 274 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-31 22:00:04,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 117 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-31 22:00:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-31 22:00:04,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-31 22:00:04,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:00:04,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-31 22:00:04,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2024-10-31 22:00:04,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-31 22:00:04,996 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-31 22:00:04,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.214285714285714) internal successors, (73), 15 states have internal predecessors, (73), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-10-31 22:00:04,996 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-31 22:00:04,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-31 22:00:04,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-10-31 22:00:05,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-10-31 22:00:05,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-10-31 22:00:05,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-10-31 22:00:05,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-10-31 22:00:05,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-10-31 22:00:05,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-10-31 22:00:05,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-10-31 22:00:05,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-10-31 22:00:05,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-10-31 22:00:05,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-31 22:00:05,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c48fcce-c702-49ba-9bb7-f76dd21fff3a/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-10-31 22:00:05,209 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:05,211 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.