./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd --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 df76811034b688387cfe28dd1eb6de91c21580662ac8ddb8163b41c1d6179172 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:33:35,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:33:35,313 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 16:33:35,323 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:33:35,324 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:33:35,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:33:35,353 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:33:35,353 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:33:35,354 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:33:35,354 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:33:35,354 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:33:35,354 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:33:35,355 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:33:35,355 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:33:35,355 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:33:35,355 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:33:35,356 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:33:35,356 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:33:35,356 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:33:35,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:33:35,358 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:33:35,358 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:33:35,358 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:33:35,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:33:35,359 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:33:35,359 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:33:35,359 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:33:35,359 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:33:35,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:33:35,360 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:33:35,360 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:33:35,362 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:33:35,362 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:33:35,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:33:35,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:33:35,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:33:35,363 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:33:35,363 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:33:35,363 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:33:35,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:33:35,363 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:33:35,363 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:33:35,363 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:33:35,364 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:33:35,364 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd 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 -> df76811034b688387cfe28dd1eb6de91c21580662ac8ddb8163b41c1d6179172 [2024-11-13 16:33:35,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:33:35,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:33:35,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:33:35,759 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:33:35,759 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:33:35,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c Unable to find full path for "g++" [2024-11-13 16:33:38,023 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:33:38,387 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:33:38,388 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c [2024-11-13 16:33:38,402 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/data/b2b81f5cb/285b6570e94e4364a05f4c5b4bde10a5/FLAGe204495c9 [2024-11-13 16:33:38,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/data/b2b81f5cb/285b6570e94e4364a05f4c5b4bde10a5 [2024-11-13 16:33:38,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:33:38,437 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:33:38,439 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:33:38,439 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:33:38,445 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:33:38,446 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,448 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b56567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38, skipping insertion in model container [2024-11-13 16:33:38,448 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,467 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:33:38,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:33:38,683 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:33:38,707 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:33:38,727 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:33:38,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38 WrapperNode [2024-11-13 16:33:38,727 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:33:38,731 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:33:38,731 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:33:38,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:33:38,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,749 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,771 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 90 [2024-11-13 16:33:38,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:33:38,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:33:38,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:33:38,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:33:38,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,787 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,802 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-13 16:33:38,803 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,803 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,809 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,814 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,815 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:33:38,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:33:38,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:33:38,823 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:33:38,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (1/1) ... [2024-11-13 16:33:38,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:33:38,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:33:38,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:33:38,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:33:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:33:38,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:33:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:33:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:33:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 16:33:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 16:33:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:33:38,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:33:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 16:33:38,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 16:33:38,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:33:39,032 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:33:39,035 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:33:39,342 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-13 16:33:39,342 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:33:39,356 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:33:39,356 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-13 16:33:39,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:33:39 BoogieIcfgContainer [2024-11-13 16:33:39,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:33:39,360 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:33:39,360 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:33:39,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:33:39,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:33:38" (1/3) ... [2024-11-13 16:33:39,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764bcdc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:33:39, skipping insertion in model container [2024-11-13 16:33:39,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:33:38" (2/3) ... [2024-11-13 16:33:39,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@764bcdc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:33:39, skipping insertion in model container [2024-11-13 16:33:39,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:33:39" (3/3) ... [2024-11-13 16:33:39,370 INFO L112 eAbstractionObserver]: Analyzing ICFG init-non-constant-3-u.c [2024-11-13 16:33:39,390 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:33:39,392 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG init-non-constant-3-u.c that has 1 procedures, 57 locations, 1 initial locations, 6 loop locations, and 20 error locations. [2024-11-13 16:33:39,457 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:33:39,473 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;@7c91a982, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:33:39,473 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-13 16:33:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 56 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:39,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-13 16:33:39,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:39,486 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-13 16:33:39,486 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:33:39,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash 28698888, now seen corresponding path program 1 times [2024-11-13 16:33:39,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:39,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676176974] [2024-11-13 16:33:39,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:39,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:39,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:39,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:39,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676176974] [2024-11-13 16:33:39,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676176974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:39,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:33:39,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:33:39,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374831506] [2024-11-13 16:33:39,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:39,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:33:39,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:39,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:33:39,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:33:39,902 INFO L87 Difference]: Start difference. First operand has 57 states, 36 states have (on average 1.9166666666666667) internal successors, (69), 56 states have internal predecessors, (69), 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:40,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:40,218 INFO L93 Difference]: Finished difference Result 138 states and 183 transitions. [2024-11-13 16:33:40,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:33:40,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-13 16:33:40,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:40,233 INFO L225 Difference]: With dead ends: 138 [2024-11-13 16:33:40,233 INFO L226 Difference]: Without dead ends: 77 [2024-11-13 16:33:40,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:33:40,244 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 90 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:40,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 55 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:33:40,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-13 16:33:40,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 73. [2024-11-13 16:33:40,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.7358490566037736) internal successors, (92), 72 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:40,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 92 transitions. [2024-11-13 16:33:40,310 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 92 transitions. Word has length 5 [2024-11-13 16:33:40,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:40,312 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 92 transitions. [2024-11-13 16:33:40,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:40,313 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 92 transitions. [2024-11-13 16:33:40,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 16:33:40,313 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:40,313 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-13 16:33:40,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:33:40,314 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:33:40,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:40,317 INFO L85 PathProgramCache]: Analyzing trace with hash 889666764, now seen corresponding path program 1 times [2024-11-13 16:33:40,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:40,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837103256] [2024-11-13 16:33:40,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:40,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:40,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:40,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:40,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837103256] [2024-11-13 16:33:40,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837103256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:40,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:33:40,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:33:40,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986085515] [2024-11-13 16:33:40,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:40,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:33:40,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:40,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:33:40,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:33:40,515 INFO L87 Difference]: Start difference. First operand 73 states and 92 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:40,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:40,836 INFO L93 Difference]: Finished difference Result 143 states and 181 transitions. [2024-11-13 16:33:40,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:33:40,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-13 16:33:40,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:40,841 INFO L225 Difference]: With dead ends: 143 [2024-11-13 16:33:40,842 INFO L226 Difference]: Without dead ends: 135 [2024-11-13 16:33:40,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:33:40,844 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 87 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:40,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 65 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:33:40,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-13 16:33:40,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 123. [2024-11-13 16:33:40,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 103 states have (on average 1.6796116504854368) internal successors, (173), 122 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:40,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 173 transitions. [2024-11-13 16:33:40,871 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 173 transitions. Word has length 6 [2024-11-13 16:33:40,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:40,871 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 173 transitions. [2024-11-13 16:33:40,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:40,872 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 173 transitions. [2024-11-13 16:33:40,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-13 16:33:40,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:40,873 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:33:40,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:33:40,873 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:33:40,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:40,874 INFO L85 PathProgramCache]: Analyzing trace with hash 271270222, now seen corresponding path program 1 times [2024-11-13 16:33:40,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:40,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198758828] [2024-11-13 16:33:40,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:40,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:41,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:41,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:41,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198758828] [2024-11-13 16:33:41,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198758828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:41,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:33:41,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:33:41,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436690500] [2024-11-13 16:33:41,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:41,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:33:41,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:41,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:33:41,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:33:41,166 INFO L87 Difference]: Start difference. First operand 123 states and 173 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:41,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:41,555 INFO L93 Difference]: Finished difference Result 159 states and 199 transitions. [2024-11-13 16:33:41,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:33:41,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-13 16:33:41,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:41,558 INFO L225 Difference]: With dead ends: 159 [2024-11-13 16:33:41,562 INFO L226 Difference]: Without dead ends: 151 [2024-11-13 16:33:41,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-13 16:33:41,564 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 84 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:41,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 67 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 16:33:41,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-13 16:33:41,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 139. [2024-11-13 16:33:41,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 119 states have (on average 1.6050420168067228) internal successors, (191), 138 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:41,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 191 transitions. [2024-11-13 16:33:41,594 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 191 transitions. Word has length 8 [2024-11-13 16:33:41,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:41,594 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 191 transitions. [2024-11-13 16:33:41,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:41,594 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 191 transitions. [2024-11-13 16:33:41,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 16:33:41,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:41,595 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 16:33:41,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:33:41,595 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:33:41,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:41,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1345292043, now seen corresponding path program 1 times [2024-11-13 16:33:41,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:41,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377165637] [2024-11-13 16:33:41,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:41,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:41,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 16:33:41,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:41,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377165637] [2024-11-13 16:33:41,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377165637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:41,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:33:41,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:33:41,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215834713] [2024-11-13 16:33:41,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:41,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:33:41,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:41,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:33:41,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:33:41,687 INFO L87 Difference]: Start difference. First operand 139 states and 191 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:41,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:41,788 INFO L93 Difference]: Finished difference Result 312 states and 447 transitions. [2024-11-13 16:33:41,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:33:41,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2024-11-13 16:33:41,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:41,790 INFO L225 Difference]: With dead ends: 312 [2024-11-13 16:33:41,791 INFO L226 Difference]: Without dead ends: 191 [2024-11-13 16:33:41,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:33:41,792 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 71 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:41,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 66 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:33:41,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-11-13 16:33:41,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 187. [2024-11-13 16:33:41,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 167 states have (on average 1.562874251497006) internal successors, (261), 186 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:41,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 261 transitions. [2024-11-13 16:33:41,807 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 261 transitions. Word has length 10 [2024-11-13 16:33:41,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:41,808 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 261 transitions. [2024-11-13 16:33:41,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:41,808 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 261 transitions. [2024-11-13 16:33:41,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 16:33:41,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:41,809 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:33:41,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:33:41,809 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:33:41,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:41,810 INFO L85 PathProgramCache]: Analyzing trace with hash -92501896, now seen corresponding path program 1 times [2024-11-13 16:33:41,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:41,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726275448] [2024-11-13 16:33:41,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:41,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:42,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:42,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:42,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726275448] [2024-11-13 16:33:42,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726275448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:33:42,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051028989] [2024-11-13 16:33:42,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:42,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:42,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:33:42,034 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:33:42,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:33:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:42,124 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:33:42,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:33:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:42,445 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:33:42,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051028989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:33:42,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:33:42,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-13 16:33:42,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391793753] [2024-11-13 16:33:42,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:33:42,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:33:42,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:42,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:33:42,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:33:42,449 INFO L87 Difference]: Start difference. First operand 187 states and 261 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:42,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:42,677 INFO L93 Difference]: Finished difference Result 187 states and 261 transitions. [2024-11-13 16:33:42,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:33:42,677 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2024-11-13 16:33:42,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:42,679 INFO L225 Difference]: With dead ends: 187 [2024-11-13 16:33:42,679 INFO L226 Difference]: Without dead ends: 177 [2024-11-13 16:33:42,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:33:42,680 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 60 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:42,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 10 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:33:42,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-13 16:33:42,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-13 16:33:42,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 167 states have (on average 1.3233532934131738) internal successors, (221), 176 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:42,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 221 transitions. [2024-11-13 16:33:42,711 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 221 transitions. Word has length 15 [2024-11-13 16:33:42,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:42,711 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 221 transitions. [2024-11-13 16:33:42,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:42,712 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 221 transitions. [2024-11-13 16:33:42,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 16:33:42,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:42,717 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:33:42,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 16:33:42,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:42,918 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:33:42,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:42,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1427408584, now seen corresponding path program 1 times [2024-11-13 16:33:42,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:42,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688429960] [2024-11-13 16:33:42,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:42,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:43,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:43,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:43,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688429960] [2024-11-13 16:33:43,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688429960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:33:43,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942542064] [2024-11-13 16:33:43,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:43,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:43,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:33:43,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:33:43,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:33:43,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:43,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:33:43,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:33:43,529 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:43,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:33:43,664 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:43,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942542064] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:33:43,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:33:43,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-13 16:33:43,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184941367] [2024-11-13 16:33:43,665 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:33:43,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 16:33:43,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:43,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 16:33:43,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-13 16:33:43,668 INFO L87 Difference]: Start difference. First operand 177 states and 221 transitions. Second operand has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:44,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:44,590 INFO L93 Difference]: Finished difference Result 369 states and 464 transitions. [2024-11-13 16:33:44,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 16:33:44,591 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 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 16 [2024-11-13 16:33:44,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:44,593 INFO L225 Difference]: With dead ends: 369 [2024-11-13 16:33:44,594 INFO L226 Difference]: Without dead ends: 359 [2024-11-13 16:33:44,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=214, Invalid=386, Unknown=0, NotChecked=0, Total=600 [2024-11-13 16:33:44,596 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 602 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:44,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 56 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 16:33:44,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-13 16:33:44,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 349. [2024-11-13 16:33:44,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 339 states have (on average 1.2684365781710913) internal successors, (430), 348 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:44,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 430 transitions. [2024-11-13 16:33:44,632 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 430 transitions. Word has length 16 [2024-11-13 16:33:44,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:44,632 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 430 transitions. [2024-11-13 16:33:44,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.5384615384615383) internal successors, (46), 14 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:44,633 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 430 transitions. [2024-11-13 16:33:44,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-13 16:33:44,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:44,634 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-13 16:33:44,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 16:33:44,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 16:33:44,835 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:33:44,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:44,836 INFO L85 PathProgramCache]: Analyzing trace with hash -74905040, now seen corresponding path program 1 times [2024-11-13 16:33:44,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:44,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520764635] [2024-11-13 16:33:44,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:44,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 16:33:44,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:44,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520764635] [2024-11-13 16:33:44,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520764635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:33:44,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733954304] [2024-11-13 16:33:44,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:44,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:44,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:33:44,994 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:33:44,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:33:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:45,077 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:33:45,079 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:33:45,178 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 16:33:45,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:33:45,246 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-13 16:33:45,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733954304] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:33:45,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:33:45,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 16:33:45,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475837544] [2024-11-13 16:33:45,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:33:45,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:33:45,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:45,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:33:45,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:33:45,251 INFO L87 Difference]: Start difference. First operand 349 states and 430 transitions. Second operand has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:45,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:45,561 INFO L93 Difference]: Finished difference Result 858 states and 1103 transitions. [2024-11-13 16:33:45,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 16:33:45,562 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 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 29 [2024-11-13 16:33:45,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:45,570 INFO L225 Difference]: With dead ends: 858 [2024-11-13 16:33:45,570 INFO L226 Difference]: Without dead ends: 541 [2024-11-13 16:33:45,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:33:45,576 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 137 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:45,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 113 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:33:45,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-13 16:33:45,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 535. [2024-11-13 16:33:45,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 525 states have (on average 1.2495238095238095) internal successors, (656), 534 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:45,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 656 transitions. [2024-11-13 16:33:45,645 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 656 transitions. Word has length 29 [2024-11-13 16:33:45,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:45,646 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 656 transitions. [2024-11-13 16:33:45,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:45,647 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 656 transitions. [2024-11-13 16:33:45,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-13 16:33:45,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:45,651 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1] [2024-11-13 16:33:45,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 16:33:45,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 16:33:45,856 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:33:45,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:45,856 INFO L85 PathProgramCache]: Analyzing trace with hash -844330550, now seen corresponding path program 1 times [2024-11-13 16:33:45,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:45,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785361254] [2024-11-13 16:33:45,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:45,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:45,950 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 16:33:45,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:45,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785361254] [2024-11-13 16:33:45,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785361254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:33:45,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474369355] [2024-11-13 16:33:45,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:45,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:45,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:33:45,954 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:33:45,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:33:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:46,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:33:46,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:33:46,185 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:46,185 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:33:46,312 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:33:46,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474369355] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:33:46,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:33:46,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 5, 5] total 11 [2024-11-13 16:33:46,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415068728] [2024-11-13 16:33:46,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:33:46,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:33:46,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:46,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:33:46,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:33:46,315 INFO L87 Difference]: Start difference. First operand 535 states and 656 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:46,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:46,605 INFO L93 Difference]: Finished difference Result 655 states and 816 transitions. [2024-11-13 16:33:46,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:33:46,606 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 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 32 [2024-11-13 16:33:46,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:46,609 INFO L225 Difference]: With dead ends: 655 [2024-11-13 16:33:46,609 INFO L226 Difference]: Without dead ends: 653 [2024-11-13 16:33:46,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=129, Invalid=177, Unknown=0, NotChecked=0, Total=306 [2024-11-13 16:33:46,611 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 215 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:46,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 101 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 16:33:46,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-11-13 16:33:46,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 533. [2024-11-13 16:33:46,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 525 states have (on average 1.2) internal successors, (630), 532 states have internal predecessors, (630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:46,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 630 transitions. [2024-11-13 16:33:46,652 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 630 transitions. Word has length 32 [2024-11-13 16:33:46,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:46,652 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 630 transitions. [2024-11-13 16:33:46,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 12 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:46,653 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 630 transitions. [2024-11-13 16:33:46,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-13 16:33:46,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:46,655 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:33:46,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 16:33:46,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:46,860 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:33:46,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:46,860 INFO L85 PathProgramCache]: Analyzing trace with hash 619178266, now seen corresponding path program 1 times [2024-11-13 16:33:46,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:46,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665007194] [2024-11-13 16:33:46,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:46,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:47,209 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-13 16:33:47,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:47,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665007194] [2024-11-13 16:33:47,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665007194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:33:47,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399970869] [2024-11-13 16:33:47,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:47,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:47,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:33:47,213 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:33:47,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 16:33:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:47,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 16:33:47,325 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:33:47,578 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 80 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-13 16:33:47,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:33:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 80 proven. 46 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-13 16:33:47,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399970869] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:33:47,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:33:47,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 20 [2024-11-13 16:33:47,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453898571] [2024-11-13 16:33:47,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:33:47,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 16:33:47,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:47,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 16:33:47,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2024-11-13 16:33:47,766 INFO L87 Difference]: Start difference. First operand 533 states and 630 transitions. Second operand has 20 states, 20 states have (on average 5.45) internal successors, (109), 20 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:49,964 INFO L93 Difference]: Finished difference Result 1725 states and 2101 transitions. [2024-11-13 16:33:49,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-13 16:33:49,966 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.45) internal successors, (109), 20 states have internal predecessors, (109), 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 55 [2024-11-13 16:33:49,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:49,974 INFO L225 Difference]: With dead ends: 1725 [2024-11-13 16:33:49,974 INFO L226 Difference]: Without dead ends: 1225 [2024-11-13 16:33:49,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 948 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1033, Invalid=2273, Unknown=0, NotChecked=0, Total=3306 [2024-11-13 16:33:49,981 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 2337 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2337 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:49,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2337 Valid, 74 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 16:33:49,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2024-11-13 16:33:50,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1205. [2024-11-13 16:33:50,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1205 states, 1197 states have (on average 1.1804511278195489) internal successors, (1413), 1204 states have internal predecessors, (1413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:50,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1205 states to 1205 states and 1413 transitions. [2024-11-13 16:33:50,083 INFO L78 Accepts]: Start accepts. Automaton has 1205 states and 1413 transitions. Word has length 55 [2024-11-13 16:33:50,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:50,086 INFO L471 AbstractCegarLoop]: Abstraction has 1205 states and 1413 transitions. [2024-11-13 16:33:50,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.45) internal successors, (109), 20 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:50,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1205 states and 1413 transitions. [2024-11-13 16:33:50,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 16:33:50,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:50,093 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:33:50,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-13 16:33:50,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:50,296 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:33:50,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:50,297 INFO L85 PathProgramCache]: Analyzing trace with hash 119765600, now seen corresponding path program 2 times [2024-11-13 16:33:50,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:50,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821478443] [2024-11-13 16:33:50,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:50,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:50,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:51,108 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 407 proven. 325 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-13 16:33:51,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:51,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821478443] [2024-11-13 16:33:51,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821478443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:33:51,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99950529] [2024-11-13 16:33:51,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:33:51,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:51,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:33:51,112 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:33:51,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 16:33:51,234 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:33:51,234 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:33:51,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 16:33:51,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:33:52,087 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 366 proven. 60 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2024-11-13 16:33:52,088 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:33:52,492 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 0 proven. 426 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2024-11-13 16:33:52,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99950529] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:33:52,492 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:33:52,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 4, 4] total 20 [2024-11-13 16:33:52,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758235309] [2024-11-13 16:33:52,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:33:52,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 16:33:52,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:52,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 16:33:52,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2024-11-13 16:33:52,501 INFO L87 Difference]: Start difference. First operand 1205 states and 1413 transitions. Second operand has 20 states, 20 states have (on average 6.9) internal successors, (138), 20 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:55,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:33:55,042 INFO L93 Difference]: Finished difference Result 2573 states and 3024 transitions. [2024-11-13 16:33:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-13 16:33:55,043 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 6.9) internal successors, (138), 20 states have internal predecessors, (138), 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 118 [2024-11-13 16:33:55,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:33:55,053 INFO L225 Difference]: With dead ends: 2573 [2024-11-13 16:33:55,053 INFO L226 Difference]: Without dead ends: 1443 [2024-11-13 16:33:55,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1498 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1438, Invalid=3674, Unknown=0, NotChecked=0, Total=5112 [2024-11-13 16:33:55,062 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 811 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:33:55,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 117 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 16:33:55,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2024-11-13 16:33:55,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1251. [2024-11-13 16:33:55,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 1243 states have (on average 1.1359613837489944) internal successors, (1412), 1250 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:55,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1412 transitions. [2024-11-13 16:33:55,143 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1412 transitions. Word has length 118 [2024-11-13 16:33:55,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:33:55,143 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1412 transitions. [2024-11-13 16:33:55,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.9) internal successors, (138), 20 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:33:55,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1412 transitions. [2024-11-13 16:33:55,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-13 16:33:55,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:33:55,157 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 35, 35, 35, 35, 35, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1] [2024-11-13 16:33:55,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 16:33:55,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 16:33:55,359 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:33:55,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:33:55,360 INFO L85 PathProgramCache]: Analyzing trace with hash -424151650, now seen corresponding path program 1 times [2024-11-13 16:33:55,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:33:55,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656268071] [2024-11-13 16:33:55,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:55,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:33:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:55,988 INFO L134 CoverageAnalysis]: Checked inductivity of 4407 backedges. 2020 proven. 4 refuted. 0 times theorem prover too weak. 2383 trivial. 0 not checked. [2024-11-13 16:33:55,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:33:55,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656268071] [2024-11-13 16:33:55,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656268071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:33:55,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759785887] [2024-11-13 16:33:55,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:33:55,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:33:55,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:33:55,992 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:33:55,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 16:33:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:33:56,234 INFO L255 TraceCheckSpWp]: Trace formula consists of 551 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 16:33:56,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:33:56,946 INFO L134 CoverageAnalysis]: Checked inductivity of 4407 backedges. 2025 proven. 474 refuted. 0 times theorem prover too weak. 1908 trivial. 0 not checked. [2024-11-13 16:33:56,946 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:33:57,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4407 backedges. 2025 proven. 474 refuted. 0 times theorem prover too weak. 1908 trivial. 0 not checked. [2024-11-13 16:33:57,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759785887] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:33:57,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:33:57,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 16, 16] total 32 [2024-11-13 16:33:57,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44221906] [2024-11-13 16:33:57,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:33:57,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-13 16:33:57,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:33:57,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-13 16:33:57,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=576, Unknown=0, NotChecked=0, Total=992 [2024-11-13 16:33:57,527 INFO L87 Difference]: Start difference. First operand 1251 states and 1412 transitions. Second operand has 32 states, 32 states have (on average 6.875) internal successors, (220), 32 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:34:01,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:34:01,789 INFO L93 Difference]: Finished difference Result 5057 states and 5971 transitions. [2024-11-13 16:34:01,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2024-11-13 16:34:01,790 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 6.875) internal successors, (220), 32 states have internal predecessors, (220), 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 272 [2024-11-13 16:34:01,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:34:01,810 INFO L225 Difference]: With dead ends: 5057 [2024-11-13 16:34:01,810 INFO L226 Difference]: Without dead ends: 3895 [2024-11-13 16:34:01,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 613 GetRequests, 517 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2942 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=3373, Invalid=6133, Unknown=0, NotChecked=0, Total=9506 [2024-11-13 16:34:01,820 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 3358 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3358 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 232 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:34:01,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3358 Valid, 147 Invalid, 858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [232 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 16:34:01,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3895 states. [2024-11-13 16:34:02,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3895 to 2816. [2024-11-13 16:34:02,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2816 states, 2808 states have (on average 1.1349715099715099) internal successors, (3187), 2815 states have internal predecessors, (3187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:34:02,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2816 states to 2816 states and 3187 transitions. [2024-11-13 16:34:02,049 INFO L78 Accepts]: Start accepts. Automaton has 2816 states and 3187 transitions. Word has length 272 [2024-11-13 16:34:02,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:34:02,053 INFO L471 AbstractCegarLoop]: Abstraction has 2816 states and 3187 transitions. [2024-11-13 16:34:02,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 6.875) internal successors, (220), 32 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:34:02,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2816 states and 3187 transitions. [2024-11-13 16:34:02,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2024-11-13 16:34:02,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:34:02,071 INFO L215 NwaCegarLoop]: trace histogram [52, 52, 52, 52, 52, 52, 52, 32, 32, 32, 32, 31, 31, 31, 31, 31, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:34:02,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 16:34:02,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 16:34:02,273 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:34:02,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:34:02,274 INFO L85 PathProgramCache]: Analyzing trace with hash 832224101, now seen corresponding path program 1 times [2024-11-13 16:34:02,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:34:02,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745145087] [2024-11-13 16:34:02,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:34:02,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:34:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:34:03,826 INFO L134 CoverageAnalysis]: Checked inductivity of 13766 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13765 trivial. 0 not checked. [2024-11-13 16:34:03,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:34:03,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745145087] [2024-11-13 16:34:03,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745145087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:34:03,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716271552] [2024-11-13 16:34:03,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:34:03,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:34:03,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:34:03,830 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:34:03,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 16:34:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:34:04,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 16:34:04,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:34:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 13766 backedges. 4788 proven. 2301 refuted. 0 times theorem prover too weak. 6677 trivial. 0 not checked. [2024-11-13 16:34:05,933 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:34:07,651 INFO L134 CoverageAnalysis]: Checked inductivity of 13766 backedges. 4788 proven. 2301 refuted. 0 times theorem prover too weak. 6677 trivial. 0 not checked. [2024-11-13 16:34:07,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716271552] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:34:07,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:34:07,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 30, 30] total 60 [2024-11-13 16:34:07,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848893749] [2024-11-13 16:34:07,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:34:07,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2024-11-13 16:34:07,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:34:07,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2024-11-13 16:34:07,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1606, Invalid=1934, Unknown=0, NotChecked=0, Total=3540 [2024-11-13 16:34:07,665 INFO L87 Difference]: Start difference. First operand 2816 states and 3187 transitions. Second operand has 60 states, 60 states have (on average 7.016666666666667) internal successors, (421), 60 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:34:18,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:34:18,867 INFO L93 Difference]: Finished difference Result 8494 states and 9882 transitions. [2024-11-13 16:34:18,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2024-11-13 16:34:18,867 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 60 states have (on average 7.016666666666667) internal successors, (421), 60 states have internal predecessors, (421), 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 670 [2024-11-13 16:34:18,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:34:18,887 INFO L225 Difference]: With dead ends: 8494 [2024-11-13 16:34:18,888 INFO L226 Difference]: Without dead ends: 5865 [2024-11-13 16:34:18,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1478 GetRequests, 1284 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12556 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=13411, Invalid=24809, Unknown=0, NotChecked=0, Total=38220 [2024-11-13 16:34:18,898 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 9536 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9536 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 588 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:34:18,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9536 Valid, 261 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [588 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 16:34:18,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5865 states. [2024-11-13 16:34:19,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5865 to 5756. [2024-11-13 16:34:19,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 5748 states have (on average 1.1339596381350034) internal successors, (6518), 5755 states have internal predecessors, (6518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:34:19,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 6518 transitions. [2024-11-13 16:34:19,198 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 6518 transitions. Word has length 670 [2024-11-13 16:34:19,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:34:19,198 INFO L471 AbstractCegarLoop]: Abstraction has 5756 states and 6518 transitions. [2024-11-13 16:34:19,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 7.016666666666667) internal successors, (421), 60 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:34:19,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 6518 transitions. [2024-11-13 16:34:19,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1536 [2024-11-13 16:34:19,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:34:19,273 INFO L215 NwaCegarLoop]: trace histogram [216, 216, 216, 216, 216, 216, 216, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 16:34:19,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 16:34:19,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 16:34:19,474 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:34:19,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:34:19,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1088637630, now seen corresponding path program 1 times [2024-11-13 16:34:19,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:34:19,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340285463] [2024-11-13 16:34:19,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:34:19,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:34:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:34:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 163433 backedges. 82098 proven. 20524 refuted. 0 times theorem prover too weak. 60811 trivial. 0 not checked. [2024-11-13 16:34:23,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:34:23,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340285463] [2024-11-13 16:34:23,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340285463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:34:23,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243352596] [2024-11-13 16:34:23,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:34:23,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:34:23,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:34:23,504 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:34:23,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 16:34:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:34:24,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 2894 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-13 16:34:24,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:34:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 163433 backedges. 61568 proven. 10071 refuted. 0 times theorem prover too weak. 91794 trivial. 0 not checked. [2024-11-13 16:34:28,096 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:34:32,886 INFO L134 CoverageAnalysis]: Checked inductivity of 163433 backedges. 61568 proven. 10071 refuted. 0 times theorem prover too weak. 91794 trivial. 0 not checked. [2024-11-13 16:34:32,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243352596] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:34:32,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:34:32,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 58, 58] total 116 [2024-11-13 16:34:32,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587055470] [2024-11-13 16:34:32,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:34:32,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2024-11-13 16:34:32,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:34:32,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2024-11-13 16:34:32,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6336, Invalid=7004, Unknown=0, NotChecked=0, Total=13340 [2024-11-13 16:34:32,898 INFO L87 Difference]: Start difference. First operand 5756 states and 6518 transitions. Second operand has 116 states, 116 states have (on average 7.068965517241379) internal successors, (820), 116 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:35:44,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:35:44,945 INFO L93 Difference]: Finished difference Result 21532 states and 25295 transitions. [2024-11-13 16:35:44,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 335 states. [2024-11-13 16:35:44,946 INFO L78 Accepts]: Start accepts. Automaton has has 116 states, 116 states have (on average 7.068965517241379) internal successors, (820), 116 states have internal predecessors, (820), 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 1535 [2024-11-13 16:35:44,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:35:44,997 INFO L225 Difference]: With dead ends: 21532 [2024-11-13 16:35:44,997 INFO L226 Difference]: Without dead ends: 16159 [2024-11-13 16:35:45,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3625 GetRequests, 3234 SyntacticMatches, 0 SemanticMatches, 391 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51868 ImplicationChecksByTransitivity, 33.1s TimeCoverageRelationStatistics Valid=53593, Invalid=100463, Unknown=0, NotChecked=0, Total=154056 [2024-11-13 16:35:45,027 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 20608 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 1416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20608 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 3507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1416 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:35:45,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20608 Valid, 434 Invalid, 3507 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1416 Valid, 2091 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 16:35:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16159 states. [2024-11-13 16:35:45,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16159 to 15168. [2024-11-13 16:35:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15168 states, 15160 states have (on average 1.1461081794195251) internal successors, (17375), 15167 states have internal predecessors, (17375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:35:45,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15168 states to 15168 states and 17375 transitions. [2024-11-13 16:35:45,863 INFO L78 Accepts]: Start accepts. Automaton has 15168 states and 17375 transitions. Word has length 1535 [2024-11-13 16:35:45,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:35:45,863 INFO L471 AbstractCegarLoop]: Abstraction has 15168 states and 17375 transitions. [2024-11-13 16:35:45,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 7.068965517241379) internal successors, (820), 116 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:35:45,864 INFO L276 IsEmpty]: Start isEmpty. Operand 15168 states and 17375 transitions. [2024-11-13 16:35:46,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3112 [2024-11-13 16:35:46,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:35:46,039 INFO L215 NwaCegarLoop]: trace histogram [441, 441, 440, 440, 440, 440, 440, 5, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1] [2024-11-13 16:35:46,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 16:35:46,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 16:35:46,240 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:35:46,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:35:46,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1711503488, now seen corresponding path program 2 times [2024-11-13 16:35:46,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:35:46,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418794104] [2024-11-13 16:35:46,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:35:46,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:35:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:36:51,814 INFO L134 CoverageAnalysis]: Checked inductivity of 679188 backedges. 255102 proven. 42075 refuted. 0 times theorem prover too weak. 382011 trivial. 0 not checked. [2024-11-13 16:36:51,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:36:51,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418794104] [2024-11-13 16:36:51,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418794104] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:36:51,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49831664] [2024-11-13 16:36:51,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:36:51,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:36:51,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:36:51,817 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:36:51,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 16:36:52,328 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:36:52,328 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:36:52,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:36:52,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:36:59,206 INFO L134 CoverageAnalysis]: Checked inductivity of 679188 backedges. 0 proven. 1330 refuted. 0 times theorem prover too weak. 677858 trivial. 0 not checked. [2024-11-13 16:36:59,206 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:37:05,916 INFO L134 CoverageAnalysis]: Checked inductivity of 679188 backedges. 0 proven. 1330 refuted. 0 times theorem prover too weak. 677858 trivial. 0 not checked. [2024-11-13 16:37:05,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49831664] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:37:05,917 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:37:05,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [114, 3, 3] total 118 [2024-11-13 16:37:05,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641461267] [2024-11-13 16:37:05,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:37:05,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 118 states [2024-11-13 16:37:05,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:37:05,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2024-11-13 16:37:05,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6341, Invalid=7465, Unknown=0, NotChecked=0, Total=13806 [2024-11-13 16:37:05,928 INFO L87 Difference]: Start difference. First operand 15168 states and 17375 transitions. Second operand has 118 states, 118 states have (on average 7.059322033898305) internal successors, (833), 118 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:37:52,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:37:52,827 INFO L93 Difference]: Finished difference Result 29821 states and 34291 transitions. [2024-11-13 16:37:52,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 228 states. [2024-11-13 16:37:52,829 INFO L78 Accepts]: Start accepts. Automaton has has 118 states, 118 states have (on average 7.059322033898305) internal successors, (833), 118 states have internal predecessors, (833), 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 3111 [2024-11-13 16:37:52,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:37:52,871 INFO L225 Difference]: With dead ends: 29821 [2024-11-13 16:37:52,872 INFO L226 Difference]: Without dead ends: 15428 [2024-11-13 16:37:52,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6560 GetRequests, 6218 SyntacticMatches, 0 SemanticMatches, 342 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25644 ImplicationChecksByTransitivity, 30.3s TimeCoverageRelationStatistics Valid=39337, Invalid=78655, Unknown=0, NotChecked=0, Total=117992 [2024-11-13 16:37:52,894 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 16631 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 1263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16631 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 2997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1263 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:37:52,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16631 Valid, 274 Invalid, 2997 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1263 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 16:37:52,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15428 states. [2024-11-13 16:37:53,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15428 to 15317. [2024-11-13 16:37:53,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15317 states, 15309 states have (on average 1.0597034424194918) internal successors, (16223), 15316 states have internal predecessors, (16223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:37:53,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15317 states to 15317 states and 16223 transitions. [2024-11-13 16:37:53,699 INFO L78 Accepts]: Start accepts. Automaton has 15317 states and 16223 transitions. Word has length 3111 [2024-11-13 16:37:53,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:37:53,701 INFO L471 AbstractCegarLoop]: Abstraction has 15317 states and 16223 transitions. [2024-11-13 16:37:53,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 118 states, 118 states have (on average 7.059322033898305) internal successors, (833), 118 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:37:53,702 INFO L276 IsEmpty]: Start isEmpty. Operand 15317 states and 16223 transitions. [2024-11-13 16:37:53,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3913 [2024-11-13 16:37:53,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:37:53,831 INFO L215 NwaCegarLoop]: trace histogram [555, 555, 555, 555, 555, 555, 555, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1] [2024-11-13 16:37:53,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 16:37:54,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 16:37:54,036 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:37:54,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:37:54,037 INFO L85 PathProgramCache]: Analyzing trace with hash 746251052, now seen corresponding path program 2 times [2024-11-13 16:37:54,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:37:54,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107270237] [2024-11-13 16:37:54,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:37:54,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:37:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:37:59,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1078966 backedges. 0 proven. 345888 refuted. 0 times theorem prover too weak. 733078 trivial. 0 not checked. [2024-11-13 16:37:59,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:37:59,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107270237] [2024-11-13 16:37:59,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107270237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:37:59,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317651230] [2024-11-13 16:37:59,547 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 16:37:59,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:37:59,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:37:59,549 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:37:59,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 16:38:00,527 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 16:38:00,527 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 16:38:00,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:38:00,584 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:38:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1078966 backedges. 0 proven. 345888 refuted. 0 times theorem prover too weak. 733078 trivial. 0 not checked. [2024-11-13 16:38:08,824 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:38:17,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1078966 backedges. 0 proven. 345888 refuted. 0 times theorem prover too weak. 733078 trivial. 0 not checked. [2024-11-13 16:38:17,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317651230] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:38:17,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:38:17,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-13 16:38:17,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319671934] [2024-11-13 16:38:17,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:38:17,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:38:17,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:38:17,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:38:17,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:38:17,555 INFO L87 Difference]: Start difference. First operand 15317 states and 16223 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:38:18,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:38:18,144 INFO L93 Difference]: Finished difference Result 15317 states and 16223 transitions. [2024-11-13 16:38:18,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:38:18,145 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 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 3912 [2024-11-13 16:38:18,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:38:18,194 INFO L225 Difference]: With dead ends: 15317 [2024-11-13 16:38:18,195 INFO L226 Difference]: Without dead ends: 15315 [2024-11-13 16:38:18,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7827 GetRequests, 7821 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:38:18,200 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 51 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:38:18,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 26 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:38:18,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15315 states. [2024-11-13 16:38:18,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15315 to 10799. [2024-11-13 16:38:18,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10799 states, 10793 states have (on average 1.0433614379690541) internal successors, (11261), 10798 states have internal predecessors, (11261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:38:18,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10799 states to 10799 states and 11261 transitions. [2024-11-13 16:38:18,769 INFO L78 Accepts]: Start accepts. Automaton has 10799 states and 11261 transitions. Word has length 3912 [2024-11-13 16:38:18,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:38:18,775 INFO L471 AbstractCegarLoop]: Abstraction has 10799 states and 11261 transitions. [2024-11-13 16:38:18,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:38:18,775 INFO L276 IsEmpty]: Start isEmpty. Operand 10799 states and 11261 transitions. [2024-11-13 16:38:18,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3919 [2024-11-13 16:38:18,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:38:18,900 INFO L215 NwaCegarLoop]: trace histogram [556, 556, 556, 556, 555, 555, 555, 5, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1] [2024-11-13 16:38:18,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-13 16:38:19,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 16:38:19,101 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:38:19,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:38:19,102 INFO L85 PathProgramCache]: Analyzing trace with hash 586044824, now seen corresponding path program 1 times [2024-11-13 16:38:19,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:38:19,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584882670] [2024-11-13 16:38:19,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:38:19,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:38:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:39:36,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1081188 backedges. 346332 proven. 42846 refuted. 0 times theorem prover too weak. 692010 trivial. 0 not checked. [2024-11-13 16:39:36,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:39:36,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584882670] [2024-11-13 16:39:36,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584882670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:39:36,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547867011] [2024-11-13 16:39:36,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:39:36,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:39:36,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:39:36,412 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:39:36,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 16:39:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:39:38,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 7321 conjuncts, 114 conjuncts are in the unsatisfiable core [2024-11-13 16:39:38,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:39:48,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1081188 backedges. 346332 proven. 42846 refuted. 0 times theorem prover too weak. 692010 trivial. 0 not checked. [2024-11-13 16:39:48,594 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:40:11,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1081188 backedges. 346332 proven. 42846 refuted. 0 times theorem prover too weak. 692010 trivial. 0 not checked. [2024-11-13 16:40:11,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547867011] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:40:11,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:40:11,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [115, 115, 115] total 340 [2024-11-13 16:40:11,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842970915] [2024-11-13 16:40:11,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:40:11,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 340 states [2024-11-13 16:40:11,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:40:11,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 340 interpolants. [2024-11-13 16:40:11,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51079, Invalid=64181, Unknown=0, NotChecked=0, Total=115260 [2024-11-13 16:40:11,179 INFO L87 Difference]: Start difference. First operand 10799 states and 11261 transitions. Second operand has 340 states, 340 states have (on average 6.935294117647059) internal successors, (2358), 340 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:44:25,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:44:25,696 INFO L93 Difference]: Finished difference Result 31652 states and 34719 transitions. [2024-11-13 16:44:25,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2024-11-13 16:44:25,697 INFO L78 Accepts]: Start accepts. Automaton has has 340 states, 340 states have (on average 6.935294117647059) internal successors, (2358), 340 states have internal predecessors, (2358), 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 3918 [2024-11-13 16:44:25,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:44:25,736 INFO L225 Difference]: With dead ends: 31652 [2024-11-13 16:44:25,737 INFO L226 Difference]: Without dead ends: 21635 [2024-11-13 16:44:25,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8061 GetRequests, 7611 SyntacticMatches, 0 SemanticMatches, 450 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75485 ImplicationChecksByTransitivity, 53.4s TimeCoverageRelationStatistics Valid=76727, Invalid=127125, Unknown=0, NotChecked=0, Total=203852 [2024-11-13 16:44:25,761 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 13518 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 2965 mSolverCounterSat, 1262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13518 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 4227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1262 IncrementalHoareTripleChecker+Valid, 2965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:44:25,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13518 Valid, 1834 Invalid, 4227 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1262 Valid, 2965 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-13 16:44:25,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21635 states. [2024-11-13 16:44:27,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21635 to 21635. [2024-11-13 16:44:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21635 states, 21629 states have (on average 1.0580701835498636) internal successors, (22885), 21634 states have internal predecessors, (22885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:44:27,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21635 states to 21635 states and 22885 transitions. [2024-11-13 16:44:27,072 INFO L78 Accepts]: Start accepts. Automaton has 21635 states and 22885 transitions. Word has length 3918 [2024-11-13 16:44:27,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:44:27,074 INFO L471 AbstractCegarLoop]: Abstraction has 21635 states and 22885 transitions. [2024-11-13 16:44:27,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 340 states, 340 states have (on average 6.935294117647059) internal successors, (2358), 340 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:44:27,075 INFO L276 IsEmpty]: Start isEmpty. Operand 21635 states and 22885 transitions. [2024-11-13 16:44:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7083 [2024-11-13 16:44:27,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:44:27,458 INFO L215 NwaCegarLoop]: trace histogram [1008, 1008, 1008, 1008, 1007, 1007, 1007, 5, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1] [2024-11-13 16:44:27,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-13 16:44:27,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8de3ab30-5405-4fd9-ae14-7da3921483f9/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 16:44:27,659 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-13 16:44:27,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:44:27,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1360290424, now seen corresponding path program 2 times [2024-11-13 16:44:27,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:44:27,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913369530] [2024-11-13 16:44:27,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:44:27,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:44:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat