./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.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_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/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_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/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_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/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 352373f9b097794e6947f5064b04543cec809ba042ac0b3a931e0e161838d7d3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:15:21,481 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:15:21,584 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 14:15:21,589 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:15:21,594 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:15:21,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:15:21,630 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:15:21,631 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:15:21,631 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:15:21,632 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:15:21,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:15:21,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:15:21,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:15:21,634 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:15:21,634 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:15:21,635 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:15:21,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:15:21,635 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:15:21,635 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:15:21,635 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:15:21,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:15:21,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:15:21,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:15:21,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:15:21,636 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:15:21,636 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 14:15:21,636 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:15:21,636 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:15:21,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:15:21,637 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:15:21,637 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:15:21,637 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:15:21,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:15:21,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:15:21,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:15:21,637 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:15:21,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:15:21,638 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:15:21,638 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:15:21,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:15:21,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:15:21,638 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:15:21,638 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:15:21,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:15:21,638 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_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/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 -> 352373f9b097794e6947f5064b04543cec809ba042ac0b3a931e0e161838d7d3 [2024-11-13 14:15:21,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:15:21,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:15:21,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:15:21,990 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:15:21,990 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:15:21,994 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c Unable to find full path for "g++" [2024-11-13 14:15:23,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:15:24,164 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:15:24,164 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound50.c [2024-11-13 14:15:24,177 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/data/40ea6107c/8145349ffdc44dd4b140af9c61035037/FLAGd5668eb4a [2024-11-13 14:15:24,209 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/data/40ea6107c/8145349ffdc44dd4b140af9c61035037 [2024-11-13 14:15:24,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:15:24,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:15:24,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:15:24,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:15:24,221 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:15:24,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dbf4d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24, skipping insertion in model container [2024-11-13 14:15:24,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,242 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:15:24,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:15:24,441 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:15:24,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:15:24,482 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:15:24,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24 WrapperNode [2024-11-13 14:15:24,483 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:15:24,484 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:15:24,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:15:24,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:15:24,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,520 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2024-11-13 14:15:24,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:15:24,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:15:24,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:15:24,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:15:24,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,536 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,557 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 14:15:24,562 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,562 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,569 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,576 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,576 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:15:24,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:15:24,582 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:15:24,583 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:15:24,583 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (1/1) ... [2024-11-13 14:15:24,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:15:24,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:24,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:15:24,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:15:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:15:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 14:15:24,654 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 14:15:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:15:24,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:15:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:15:24,655 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 14:15:24,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 14:15:24,721 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:15:24,723 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:15:24,988 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-13 14:15:24,989 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:15:25,000 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:15:25,000 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:15:25,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:15:25 BoogieIcfgContainer [2024-11-13 14:15:25,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:15:25,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:15:25,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:15:25,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:15:25,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:15:24" (1/3) ... [2024-11-13 14:15:25,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd2095f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:15:25, skipping insertion in model container [2024-11-13 14:15:25,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:15:24" (2/3) ... [2024-11-13 14:15:25,014 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd2095f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:15:25, skipping insertion in model container [2024-11-13 14:15:25,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:15:25" (3/3) ... [2024-11-13 14:15:25,015 INFO L112 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound50.c [2024-11-13 14:15:25,030 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:15:25,031 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG prodbin-ll_valuebound50.c that has 3 procedures, 58 locations, 1 initial locations, 1 loop locations, and 16 error locations. [2024-11-13 14:15:25,081 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:15:25,097 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;@2e7b240, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:15:25,097 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-13 14:15:25,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 34 states have (on average 1.6470588235294117) internal successors, (56), 50 states have internal predecessors, (56), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:15:25,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 14:15:25,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:25,109 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:25,110 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:25,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:25,116 INFO L85 PathProgramCache]: Analyzing trace with hash -826320025, now seen corresponding path program 1 times [2024-11-13 14:15:25,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:25,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679413179] [2024-11-13 14:15:25,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:25,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:25,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:25,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:25,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:25,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:25,272 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:25,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:25,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679413179] [2024-11-13 14:15:25,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679413179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:15:25,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:15:25,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:15:25,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605509752] [2024-11-13 14:15:25,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:25,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:15:25,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:25,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:15:25,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:15:25,298 INFO L87 Difference]: Start difference. First operand has 58 states, 34 states have (on average 1.6470588235294117) internal successors, (56), 50 states have internal predecessors, (56), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:15:25,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:25,318 INFO L93 Difference]: Finished difference Result 112 states and 132 transitions. [2024-11-13 14:15:25,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:15:25,320 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-13 14:15:25,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:25,324 INFO L225 Difference]: With dead ends: 112 [2024-11-13 14:15:25,325 INFO L226 Difference]: Without dead ends: 51 [2024-11-13 14:15:25,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:15:25,330 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:25,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:15:25,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-13 14:15:25,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-13 14:15:25,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 44 states have internal predecessors, (46), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 14:15:25,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2024-11-13 14:15:25,378 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 21 [2024-11-13 14:15:25,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:25,379 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2024-11-13 14:15:25,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 14:15:25,379 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2024-11-13 14:15:25,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 14:15:25,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:25,381 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:25,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:15:25,381 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:25,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:25,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1656346392, now seen corresponding path program 1 times [2024-11-13 14:15:25,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:25,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144233918] [2024-11-13 14:15:25,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:25,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:25,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848958827] [2024-11-13 14:15:25,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:25,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:25,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:25,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:25,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 14:15:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:25,532 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-13 14:15:25,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:25,776 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:25,776 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:15:25,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:25,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144233918] [2024-11-13 14:15:25,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:25,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848958827] [2024-11-13 14:15:25,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848958827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:15:25,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:15:25,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:15:25,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584623434] [2024-11-13 14:15:25,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:25,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:15:25,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:25,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:15:25,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:15:25,780 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 14:15:26,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:26,083 INFO L93 Difference]: Finished difference Result 75 states and 92 transitions. [2024-11-13 14:15:26,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:15:26,084 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2024-11-13 14:15:26,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:26,085 INFO L225 Difference]: With dead ends: 75 [2024-11-13 14:15:26,086 INFO L226 Difference]: Without dead ends: 63 [2024-11-13 14:15:26,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:15:26,087 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 132 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:26,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 81 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:15:26,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-13 14:15:26,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2024-11-13 14:15:26,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 42 states have (on average 1.4761904761904763) internal successors, (62), 53 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:15:26,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2024-11-13 14:15:26,102 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 21 [2024-11-13 14:15:26,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:26,103 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2024-11-13 14:15:26,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 14:15:26,105 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2024-11-13 14:15:26,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 14:15:26,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:26,106 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:26,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 14:15:26,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:26,307 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:26,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:26,307 INFO L85 PathProgramCache]: Analyzing trace with hash 192869449, now seen corresponding path program 1 times [2024-11-13 14:15:26,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:26,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531361473] [2024-11-13 14:15:26,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:26,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:26,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [936256353] [2024-11-13 14:15:26,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:26,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:26,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:26,334 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:26,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 14:15:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:26,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 14:15:26,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:26,599 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:15:26,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:26,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531361473] [2024-11-13 14:15:26,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:26,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936256353] [2024-11-13 14:15:26,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936256353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:15:26,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:15:26,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 14:15:26,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528927130] [2024-11-13 14:15:26,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:26,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:15:26,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:26,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:15:26,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:15:26,602 INFO L87 Difference]: Start difference. First operand 61 states and 72 transitions. Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 14:15:26,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:26,812 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2024-11-13 14:15:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 14:15:26,812 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2024-11-13 14:15:26,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:26,814 INFO L225 Difference]: With dead ends: 65 [2024-11-13 14:15:26,814 INFO L226 Difference]: Without dead ends: 62 [2024-11-13 14:15:26,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 14:15:26,815 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 63 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:26,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 106 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:15:26,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-13 14:15:26,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-13 14:15:26,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.4186046511627908) internal successors, (61), 54 states have internal predecessors, (61), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:15:26,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2024-11-13 14:15:26,830 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 22 [2024-11-13 14:15:26,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:26,832 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2024-11-13 14:15:26,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 14:15:26,832 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2024-11-13 14:15:26,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 14:15:26,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:26,833 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:26,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 14:15:27,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:27,037 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:27,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:27,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1683985674, now seen corresponding path program 1 times [2024-11-13 14:15:27,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:27,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396360827] [2024-11-13 14:15:27,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:27,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:27,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:27,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:27,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:27,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:27,179 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:27,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:27,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396360827] [2024-11-13 14:15:27,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396360827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:15:27,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:15:27,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:15:27,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351942263] [2024-11-13 14:15:27,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:27,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:15:27,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:27,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:15:27,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:15:27,181 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 14:15:27,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:27,314 INFO L93 Difference]: Finished difference Result 85 states and 99 transitions. [2024-11-13 14:15:27,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:15:27,315 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-13 14:15:27,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:27,316 INFO L225 Difference]: With dead ends: 85 [2024-11-13 14:15:27,317 INFO L226 Difference]: Without dead ends: 84 [2024-11-13 14:15:27,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 14:15:27,318 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 27 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:27,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 74 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:15:27,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-13 14:15:27,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2024-11-13 14:15:27,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 67 states have internal predecessors, (81), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:15:27,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 93 transitions. [2024-11-13 14:15:27,337 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 93 transitions. Word has length 23 [2024-11-13 14:15:27,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:27,337 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 93 transitions. [2024-11-13 14:15:27,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 14:15:27,337 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 93 transitions. [2024-11-13 14:15:27,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 14:15:27,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:27,338 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:27,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:15:27,338 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:27,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:27,340 INFO L85 PathProgramCache]: Analyzing trace with hash 663948395, now seen corresponding path program 1 times [2024-11-13 14:15:27,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:27,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421476207] [2024-11-13 14:15:27,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:27,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:27,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:27,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:27,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:27,533 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:27,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:27,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421476207] [2024-11-13 14:15:27,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421476207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:15:27,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:15:27,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:15:27,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061848028] [2024-11-13 14:15:27,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:27,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:15:27,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:27,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:15:27,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:15:27,535 INFO L87 Difference]: Start difference. First operand 76 states and 93 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 14:15:27,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:27,903 INFO L93 Difference]: Finished difference Result 85 states and 97 transitions. [2024-11-13 14:15:27,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:15:27,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-13 14:15:27,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:27,904 INFO L225 Difference]: With dead ends: 85 [2024-11-13 14:15:27,904 INFO L226 Difference]: Without dead ends: 84 [2024-11-13 14:15:27,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:15:27,906 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 17 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:27,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 95 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:15:27,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-11-13 14:15:27,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2024-11-13 14:15:27,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 67 states have internal predecessors, (79), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:15:27,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2024-11-13 14:15:27,918 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 24 [2024-11-13 14:15:27,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:27,919 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2024-11-13 14:15:27,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-13 14:15:27,919 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2024-11-13 14:15:27,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-13 14:15:27,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:27,921 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:27,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:15:27,922 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:27,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:27,922 INFO L85 PathProgramCache]: Analyzing trace with hash -2112036607, now seen corresponding path program 1 times [2024-11-13 14:15:27,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:27,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255114671] [2024-11-13 14:15:27,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:27,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:15:28,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,138 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:28,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:28,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255114671] [2024-11-13 14:15:28,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255114671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:15:28,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:15:28,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:15:28,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179319080] [2024-11-13 14:15:28,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:28,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:15:28,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:28,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:15:28,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:15:28,140 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:15:28,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:28,222 INFO L93 Difference]: Finished difference Result 77 states and 91 transitions. [2024-11-13 14:15:28,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:15:28,224 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-11-13 14:15:28,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:28,225 INFO L225 Difference]: With dead ends: 77 [2024-11-13 14:15:28,225 INFO L226 Difference]: Without dead ends: 76 [2024-11-13 14:15:28,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:15:28,226 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 49 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:28,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 75 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:15:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-13 14:15:28,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-13 14:15:28,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 67 states have internal predecessors, (78), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:15:28,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 90 transitions. [2024-11-13 14:15:28,243 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 90 transitions. Word has length 34 [2024-11-13 14:15:28,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:28,243 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 90 transitions. [2024-11-13 14:15:28,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:15:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 90 transitions. [2024-11-13 14:15:28,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 14:15:28,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:28,247 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:28,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:15:28,248 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:28,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:28,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1048625307, now seen corresponding path program 1 times [2024-11-13 14:15:28,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:28,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825880660] [2024-11-13 14:15:28,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:28,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:28,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:15:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:28,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:28,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825880660] [2024-11-13 14:15:28,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825880660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:15:28,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:15:28,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:15:28,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524824351] [2024-11-13 14:15:28,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:28,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:15:28,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:28,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:15:28,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:15:28,405 INFO L87 Difference]: Start difference. First operand 76 states and 90 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:15:28,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:28,538 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2024-11-13 14:15:28,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:15:28,538 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-11-13 14:15:28,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:28,540 INFO L225 Difference]: With dead ends: 77 [2024-11-13 14:15:28,540 INFO L226 Difference]: Without dead ends: 76 [2024-11-13 14:15:28,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:15:28,541 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 47 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:28,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 76 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:15:28,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-13 14:15:28,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-13 14:15:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 56 states have (on average 1.375) internal successors, (77), 67 states have internal predecessors, (77), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:15:28,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 89 transitions. [2024-11-13 14:15:28,563 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 89 transitions. Word has length 35 [2024-11-13 14:15:28,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:28,563 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 89 transitions. [2024-11-13 14:15:28,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:15:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 89 transitions. [2024-11-13 14:15:28,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-13 14:15:28,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:28,567 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:28,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:15:28,568 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:28,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:28,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1597970673, now seen corresponding path program 1 times [2024-11-13 14:15:28,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:28,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665530278] [2024-11-13 14:15:28,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:28,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:28,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:28,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:28,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:15:28,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,741 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:28,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:28,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665530278] [2024-11-13 14:15:28,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665530278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:15:28,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:15:28,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 14:15:28,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558154660] [2024-11-13 14:15:28,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:28,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 14:15:28,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:28,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 14:15:28,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:15:28,743 INFO L87 Difference]: Start difference. First operand 76 states and 89 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 14:15:28,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:28,809 INFO L93 Difference]: Finished difference Result 76 states and 89 transitions. [2024-11-13 14:15:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:15:28,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 37 [2024-11-13 14:15:28,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:28,810 INFO L225 Difference]: With dead ends: 76 [2024-11-13 14:15:28,810 INFO L226 Difference]: Without dead ends: 74 [2024-11-13 14:15:28,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:15:28,811 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 46 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:28,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 53 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:15:28,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2024-11-13 14:15:28,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2024-11-13 14:15:28,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 55 states have (on average 1.3272727272727274) internal successors, (73), 64 states have internal predecessors, (73), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:15:28,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 85 transitions. [2024-11-13 14:15:28,829 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 85 transitions. Word has length 37 [2024-11-13 14:15:28,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:28,829 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 85 transitions. [2024-11-13 14:15:28,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 14:15:28,829 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 85 transitions. [2024-11-13 14:15:28,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-13 14:15:28,833 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:28,833 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:28,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 14:15:28,833 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:28,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:28,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1995661832, now seen corresponding path program 1 times [2024-11-13 14:15:28,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:28,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625462327] [2024-11-13 14:15:28,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:28,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:15:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:28,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:28,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625462327] [2024-11-13 14:15:28,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625462327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:15:28,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:15:28,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:15:28,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235389896] [2024-11-13 14:15:28,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:28,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:15:28,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:28,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:15:28,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:15:28,941 INFO L87 Difference]: Start difference. First operand 73 states and 85 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:15:29,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:29,003 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2024-11-13 14:15:29,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:15:29,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2024-11-13 14:15:29,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:29,004 INFO L225 Difference]: With dead ends: 77 [2024-11-13 14:15:29,004 INFO L226 Difference]: Without dead ends: 76 [2024-11-13 14:15:29,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:15:29,005 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 48 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:29,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 71 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:15:29,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-13 14:15:29,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2024-11-13 14:15:29,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 66 states have internal predecessors, (75), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:15:29,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2024-11-13 14:15:29,020 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 38 [2024-11-13 14:15:29,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:29,021 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2024-11-13 14:15:29,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:15:29,021 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2024-11-13 14:15:29,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 14:15:29,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:29,023 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:29,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 14:15:29,023 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:29,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:29,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1735974729, now seen corresponding path program 1 times [2024-11-13 14:15:29,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:29,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427601031] [2024-11-13 14:15:29,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:29,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:29,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:29,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:29,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:29,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:15:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:29,126 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:29,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:29,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427601031] [2024-11-13 14:15:29,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427601031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:15:29,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:15:29,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:15:29,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364066026] [2024-11-13 14:15:29,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:29,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:15:29,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:29,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:15:29,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:15:29,130 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:15:29,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:29,196 INFO L93 Difference]: Finished difference Result 77 states and 89 transitions. [2024-11-13 14:15:29,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:15:29,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-11-13 14:15:29,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:29,199 INFO L225 Difference]: With dead ends: 77 [2024-11-13 14:15:29,200 INFO L226 Difference]: Without dead ends: 76 [2024-11-13 14:15:29,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 14:15:29,202 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 46 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:29,202 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 72 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:15:29,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-13 14:15:29,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-13 14:15:29,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 58 states have (on average 1.3103448275862069) internal successors, (76), 67 states have internal predecessors, (76), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:15:29,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2024-11-13 14:15:29,218 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 39 [2024-11-13 14:15:29,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:29,218 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2024-11-13 14:15:29,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:15:29,219 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2024-11-13 14:15:29,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-13 14:15:29,219 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:29,219 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:29,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 14:15:29,220 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:29,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:29,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1948473773, now seen corresponding path program 1 times [2024-11-13 14:15:29,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:29,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264100048] [2024-11-13 14:15:29,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:29,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:29,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2123316151] [2024-11-13 14:15:29,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:29,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:29,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:29,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:29,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 14:15:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:29,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 14:15:29,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:29,726 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 14:15:29,727 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:31,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:31,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264100048] [2024-11-13 14:15:31,439 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:31,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123316151] [2024-11-13 14:15:31,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123316151] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:31,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:15:31,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-13 14:15:31,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658721440] [2024-11-13 14:15:31,440 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:31,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 14:15:31,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:31,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 14:15:31,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-13 14:15:31,441 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 14:15:31,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:31,876 INFO L93 Difference]: Finished difference Result 96 states and 122 transitions. [2024-11-13 14:15:31,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 14:15:31,877 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 39 [2024-11-13 14:15:31,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:31,879 INFO L225 Difference]: With dead ends: 96 [2024-11-13 14:15:31,879 INFO L226 Difference]: Without dead ends: 92 [2024-11-13 14:15:31,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=134, Invalid=286, Unknown=0, NotChecked=0, Total=420 [2024-11-13 14:15:31,880 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 95 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:31,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 92 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:15:31,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-13 14:15:31,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 71. [2024-11-13 14:15:31,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 62 states have internal predecessors, (68), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:15:31,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2024-11-13 14:15:31,892 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 80 transitions. Word has length 39 [2024-11-13 14:15:31,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:31,892 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 80 transitions. [2024-11-13 14:15:31,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 14:15:31,892 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 80 transitions. [2024-11-13 14:15:31,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 14:15:31,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:31,893 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:31,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 14:15:32,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:32,094 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:32,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:32,095 INFO L85 PathProgramCache]: Analyzing trace with hash -273144770, now seen corresponding path program 1 times [2024-11-13 14:15:32,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:32,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489846751] [2024-11-13 14:15:32,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:32,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:32,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125718099] [2024-11-13 14:15:32,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:32,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:32,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:32,117 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:32,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 14:15:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:32,178 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 14:15:32,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:33,122 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 14:15:33,122 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:33,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:33,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489846751] [2024-11-13 14:15:33,886 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:33,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125718099] [2024-11-13 14:15:33,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125718099] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:33,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:15:33,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2024-11-13 14:15:33,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522004519] [2024-11-13 14:15:33,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:33,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:15:33,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:33,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:15:33,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:15:33,887 INFO L87 Difference]: Start difference. First operand 71 states and 80 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:15:34,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:34,454 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2024-11-13 14:15:34,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:15:34,455 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-11-13 14:15:34,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:34,456 INFO L225 Difference]: With dead ends: 79 [2024-11-13 14:15:34,456 INFO L226 Difference]: Without dead ends: 78 [2024-11-13 14:15:34,456 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-13 14:15:34,457 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 16 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:34,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 57 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 14:15:34,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-13 14:15:34,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-13 14:15:34,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 64 states have (on average 1.171875) internal successors, (75), 69 states have internal predecessors, (75), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-13 14:15:34,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 87 transitions. [2024-11-13 14:15:34,464 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 87 transitions. Word has length 40 [2024-11-13 14:15:34,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:34,465 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 87 transitions. [2024-11-13 14:15:34,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 14:15:34,465 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 87 transitions. [2024-11-13 14:15:34,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-13 14:15:34,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:34,466 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:34,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 14:15:34,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:34,667 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:34,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:34,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1920649340, now seen corresponding path program 1 times [2024-11-13 14:15:34,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:34,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99629254] [2024-11-13 14:15:34,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:34,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:34,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [3468458] [2024-11-13 14:15:34,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:34,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:34,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:34,687 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:34,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 14:15:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:34,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-13 14:15:34,749 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:35,829 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:35,829 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:38,163 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 14:15:38,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:38,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99629254] [2024-11-13 14:15:38,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:38,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3468458] [2024-11-13 14:15:38,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3468458] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:15:38,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:15:38,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2024-11-13 14:15:38,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12611381] [2024-11-13 14:15:38,164 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:38,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:15:38,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:38,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:15:38,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:15:38,167 INFO L87 Difference]: Start difference. First operand 78 states and 87 transitions. Second operand has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:15:42,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:42,631 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2024-11-13 14:15:42,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 14:15:42,631 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 44 [2024-11-13 14:15:42,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:42,632 INFO L225 Difference]: With dead ends: 100 [2024-11-13 14:15:42,632 INFO L226 Difference]: Without dead ends: 98 [2024-11-13 14:15:42,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=213, Invalid=543, Unknown=0, NotChecked=0, Total=756 [2024-11-13 14:15:42,634 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 74 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:42,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 138 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 14:15:42,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-13 14:15:42,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 86. [2024-11-13 14:15:42,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 72 states have (on average 1.1805555555555556) internal successors, (85), 76 states have internal predecessors, (85), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 14:15:42,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 99 transitions. [2024-11-13 14:15:42,647 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 99 transitions. Word has length 44 [2024-11-13 14:15:42,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:42,647 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 99 transitions. [2024-11-13 14:15:42,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.923076923076923) internal successors, (51), 14 states have internal predecessors, (51), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:15:42,647 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 99 transitions. [2024-11-13 14:15:42,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-13 14:15:42,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:42,648 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:42,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 14:15:42,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:42,849 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:42,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:42,849 INFO L85 PathProgramCache]: Analyzing trace with hash 589412655, now seen corresponding path program 1 times [2024-11-13 14:15:42,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:42,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468916287] [2024-11-13 14:15:42,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:42,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:43,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:43,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:43,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:43,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:15:43,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:43,104 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 14:15:43,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:43,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468916287] [2024-11-13 14:15:43,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468916287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:43,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947606604] [2024-11-13 14:15:43,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:43,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:43,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:43,107 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:43,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 14:15:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:43,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:15:43,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:43,291 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 14:15:43,292 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:43,494 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 14:15:43,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947606604] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:15:43,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:15:43,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-11-13 14:15:43,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503536380] [2024-11-13 14:15:43,495 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:43,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:15:43,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:43,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:15:43,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:15:43,496 INFO L87 Difference]: Start difference. First operand 86 states and 99 transitions. Second operand has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-13 14:15:43,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:43,751 INFO L93 Difference]: Finished difference Result 88 states and 103 transitions. [2024-11-13 14:15:43,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 14:15:43,751 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 45 [2024-11-13 14:15:43,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:43,752 INFO L225 Difference]: With dead ends: 88 [2024-11-13 14:15:43,752 INFO L226 Difference]: Without dead ends: 86 [2024-11-13 14:15:43,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:15:43,753 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 123 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:43,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 89 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:15:43,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-13 14:15:43,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2024-11-13 14:15:43,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 72 states have (on average 1.1388888888888888) internal successors, (82), 74 states have internal predecessors, (82), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-13 14:15:43,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2024-11-13 14:15:43,762 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 45 [2024-11-13 14:15:43,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:43,762 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2024-11-13 14:15:43,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-13 14:15:43,762 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2024-11-13 14:15:43,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-13 14:15:43,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:43,763 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:43,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 14:15:43,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:43,967 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:43,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:43,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1091923174, now seen corresponding path program 1 times [2024-11-13 14:15:43,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:43,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322256667] [2024-11-13 14:15:43,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:43,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:43,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:43,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [688437519] [2024-11-13 14:15:43,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:43,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:43,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:43,997 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:43,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 14:15:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:44,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 14:15:44,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:44,575 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 14:15:44,575 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:57,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:57,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322256667] [2024-11-13 14:15:57,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:15:57,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688437519] [2024-11-13 14:15:57,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688437519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:57,387 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:15:57,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-13 14:15:57,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772746546] [2024-11-13 14:15:57,387 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:57,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:15:57,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:57,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:15:57,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=360, Unknown=2, NotChecked=0, Total=462 [2024-11-13 14:15:57,388 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. Second operand has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 14:15:58,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:58,089 INFO L93 Difference]: Finished difference Result 102 states and 116 transitions. [2024-11-13 14:15:58,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 14:15:58,090 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2024-11-13 14:15:58,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:58,091 INFO L225 Difference]: With dead ends: 102 [2024-11-13 14:15:58,091 INFO L226 Difference]: Without dead ends: 100 [2024-11-13 14:15:58,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=221, Invalid=647, Unknown=2, NotChecked=0, Total=870 [2024-11-13 14:15:58,092 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 51 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:58,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 163 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:15:58,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-13 14:15:58,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2024-11-13 14:15:58,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 85 states have (on average 1.1294117647058823) internal successors, (96), 87 states have internal predecessors, (96), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:15:58,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 112 transitions. [2024-11-13 14:15:58,106 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 112 transitions. Word has length 46 [2024-11-13 14:15:58,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:58,106 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 112 transitions. [2024-11-13 14:15:58,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 14:15:58,107 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 112 transitions. [2024-11-13 14:15:58,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 14:15:58,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:58,108 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:58,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 14:15:58,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 14:15:58,309 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:58,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:58,310 INFO L85 PathProgramCache]: Analyzing trace with hash 590112144, now seen corresponding path program 1 times [2024-11-13 14:15:58,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:58,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363069967] [2024-11-13 14:15:58,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:58,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:58,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:15:58,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 14:15:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,424 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 14:15:58,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:58,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363069967] [2024-11-13 14:15:58,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363069967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:15:58,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:15:58,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:15:58,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130689425] [2024-11-13 14:15:58,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:15:58,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 14:15:58,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:58,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 14:15:58,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 14:15:58,426 INFO L87 Difference]: Start difference. First operand 98 states and 112 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:15:58,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:58,482 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2024-11-13 14:15:58,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 14:15:58,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 53 [2024-11-13 14:15:58,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:58,484 INFO L225 Difference]: With dead ends: 102 [2024-11-13 14:15:58,484 INFO L226 Difference]: Without dead ends: 101 [2024-11-13 14:15:58,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 14:15:58,485 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 5 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:58,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 80 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:15:58,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-13 14:15:58,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2024-11-13 14:15:58,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 85 states have (on average 1.1294117647058823) internal successors, (96), 87 states have internal predecessors, (96), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-13 14:15:58,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 112 transitions. [2024-11-13 14:15:58,494 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 112 transitions. Word has length 53 [2024-11-13 14:15:58,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:58,495 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 112 transitions. [2024-11-13 14:15:58,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-13 14:15:58,495 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 112 transitions. [2024-11-13 14:15:58,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-13 14:15:58,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:58,496 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:58,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 14:15:58,496 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:58,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:58,496 INFO L85 PathProgramCache]: Analyzing trace with hash 590122106, now seen corresponding path program 1 times [2024-11-13 14:15:58,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:58,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371784055] [2024-11-13 14:15:58,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:58,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:15:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:15:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:15:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:15:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 14:15:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,636 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 14:15:58,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:15:58,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371784055] [2024-11-13 14:15:58,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371784055] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:15:58,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731751462] [2024-11-13 14:15:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:58,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:58,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:58,639 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:58,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 14:15:58,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:58,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 14:15:58,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:15:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 14:15:58,775 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:15:58,891 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 14:15:58,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731751462] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:15:58,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:15:58,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-13 14:15:58,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348187939] [2024-11-13 14:15:58,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:15:58,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 14:15:58,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:15:58,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 14:15:58,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-13 14:15:58,893 INFO L87 Difference]: Start difference. First operand 98 states and 112 transitions. Second operand has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-13 14:15:59,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:15:59,084 INFO L93 Difference]: Finished difference Result 221 states and 262 transitions. [2024-11-13 14:15:59,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 14:15:59,085 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 53 [2024-11-13 14:15:59,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:15:59,086 INFO L225 Difference]: With dead ends: 221 [2024-11-13 14:15:59,086 INFO L226 Difference]: Without dead ends: 220 [2024-11-13 14:15:59,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-13 14:15:59,087 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 224 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 14:15:59,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 100 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 14:15:59,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-13 14:15:59,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 186. [2024-11-13 14:15:59,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 168 states have (on average 1.119047619047619) internal successors, (188), 170 states have internal predecessors, (188), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 14:15:59,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 214 transitions. [2024-11-13 14:15:59,104 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 214 transitions. Word has length 53 [2024-11-13 14:15:59,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:15:59,104 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 214 transitions. [2024-11-13 14:15:59,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.714285714285714) internal successors, (61), 8 states have internal predecessors, (61), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-13 14:15:59,105 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 214 transitions. [2024-11-13 14:15:59,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 14:15:59,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:15:59,106 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:15:59,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 14:15:59,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:59,310 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:15:59,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:15:59,310 INFO L85 PathProgramCache]: Analyzing trace with hash 348613339, now seen corresponding path program 1 times [2024-11-13 14:15:59,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:15:59,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044660358] [2024-11-13 14:15:59,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:59,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:15:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:15:59,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1905345821] [2024-11-13 14:15:59,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:15:59,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:15:59,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:15:59,336 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:15:59,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 14:15:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:15:59,397 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-13 14:15:59,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:16:01,089 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-13 14:16:01,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:16:36,992 WARN L286 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 52 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:16:48,477 WARN L286 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:16:56,459 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 17 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-13 14:16:56,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:16:56,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044660358] [2024-11-13 14:16:56,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:16:56,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905345821] [2024-11-13 14:16:56,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905345821] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:16:56,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:16:56,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-11-13 14:16:56,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498270563] [2024-11-13 14:16:56,461 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:16:56,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 14:16:56,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:16:56,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 14:16:56,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=552, Unknown=0, NotChecked=0, Total=702 [2024-11-13 14:16:56,462 INFO L87 Difference]: Start difference. First operand 186 states and 214 transitions. Second operand has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-13 14:17:00,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:17:02,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:17:14,656 WARN L286 SmtUtils]: Spent 8.33s on a formula simplification. DAG size of input: 77 DAG size of output: 63 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:17:17,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:17:29,693 WARN L286 SmtUtils]: Spent 7.64s on a formula simplification. DAG size of input: 75 DAG size of output: 67 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:17:45,782 WARN L286 SmtUtils]: Spent 9.10s on a formula simplification. DAG size of input: 99 DAG size of output: 74 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:17:47,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:18:11,943 WARN L286 SmtUtils]: Spent 16.29s on a formula simplification. DAG size of input: 91 DAG size of output: 58 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 14:18:18,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.96s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:18:24,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:18:34,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:18:34,014 INFO L93 Difference]: Finished difference Result 240 states and 275 transitions. [2024-11-13 14:18:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-13 14:18:34,014 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 64 [2024-11-13 14:18:34,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:18:34,016 INFO L225 Difference]: With dead ends: 240 [2024-11-13 14:18:34,016 INFO L226 Difference]: Without dead ends: 238 [2024-11-13 14:18:34,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 98.1s TimeCoverageRelationStatistics Valid=387, Invalid=1333, Unknown=2, NotChecked=0, Total=1722 [2024-11-13 14:18:34,017 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 90 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:18:34,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 315 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 30.5s Time] [2024-11-13 14:18:34,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-11-13 14:18:34,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 232. [2024-11-13 14:18:34,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 212 states have (on average 1.1037735849056605) internal successors, (234), 214 states have internal predecessors, (234), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 14:18:34,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 264 transitions. [2024-11-13 14:18:34,045 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 264 transitions. Word has length 64 [2024-11-13 14:18:34,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:18:34,046 INFO L471 AbstractCegarLoop]: Abstraction has 232 states and 264 transitions. [2024-11-13 14:18:34,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 26 states have internal predecessors, (86), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-13 14:18:34,046 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 264 transitions. [2024-11-13 14:18:34,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 14:18:34,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:18:34,047 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:18:34,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 14:18:34,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 14:18:34,248 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:18:34,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:18:34,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1431613989, now seen corresponding path program 2 times [2024-11-13 14:18:34,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:18:34,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804888382] [2024-11-13 14:18:34,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:18:34,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:18:34,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:18:34,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [246898505] [2024-11-13 14:18:34,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:18:34,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:18:34,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:18:34,270 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:18:34,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 14:18:34,331 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:18:34,331 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:18:34,333 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 14:18:34,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:18:35,489 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 14:18:35,489 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:19:06,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:19:06,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804888382] [2024-11-13 14:19:06,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:19:06,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246898505] [2024-11-13 14:19:06,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246898505] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:19:06,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:19:06,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-13 14:19:06,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210804969] [2024-11-13 14:19:06,265 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:19:06,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-13 14:19:06,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:19:06,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-13 14:19:06,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-13 14:19:06,267 INFO L87 Difference]: Start difference. First operand 232 states and 264 transitions. Second operand has 16 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:19:07,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:19:07,634 INFO L93 Difference]: Finished difference Result 256 states and 290 transitions. [2024-11-13 14:19:07,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 14:19:07,635 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 64 [2024-11-13 14:19:07,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:19:07,636 INFO L225 Difference]: With dead ends: 256 [2024-11-13 14:19:07,636 INFO L226 Difference]: Without dead ends: 254 [2024-11-13 14:19:07,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 19.1s TimeCoverageRelationStatistics Valid=353, Invalid=1053, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 14:19:07,637 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 64 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 14:19:07,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 232 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 14:19:07,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-13 14:19:07,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 250. [2024-11-13 14:19:07,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 229 states have (on average 1.1004366812227073) internal successors, (252), 231 states have internal predecessors, (252), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-13 14:19:07,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 284 transitions. [2024-11-13 14:19:07,663 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 284 transitions. Word has length 64 [2024-11-13 14:19:07,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:19:07,663 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 284 transitions. [2024-11-13 14:19:07,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 3.2) internal successors, (48), 15 states have internal predecessors, (48), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:19:07,664 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 284 transitions. [2024-11-13 14:19:07,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 14:19:07,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:19:07,665 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:19:07,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 14:19:07,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:07,869 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:19:07,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:19:07,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1402704095, now seen corresponding path program 2 times [2024-11-13 14:19:07,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:19:07,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357280285] [2024-11-13 14:19:07,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:19:07,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:19:07,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:19:07,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1069774649] [2024-11-13 14:19:07,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:19:07,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:19:07,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:19:07,894 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:19:07,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 14:19:07,967 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:19:07,967 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:19:07,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-13 14:19:07,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:19:09,487 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-13 14:19:09,487 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:19:29,107 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-13 14:19:29,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:19:29,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357280285] [2024-11-13 14:19:29,107 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:19:29,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069774649] [2024-11-13 14:19:29,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069774649] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:19:29,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:19:29,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 30 [2024-11-13 14:19:29,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617596830] [2024-11-13 14:19:29,108 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:19:29,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-13 14:19:29,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:19:29,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-13 14:19:29,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=727, Unknown=1, NotChecked=0, Total=930 [2024-11-13 14:19:29,110 INFO L87 Difference]: Start difference. First operand 250 states and 284 transitions. Second operand has 31 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 30 states have internal predecessors, (94), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-13 14:19:32,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:19:36,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:19:55,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-13 14:20:02,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:20:02,434 INFO L93 Difference]: Finished difference Result 263 states and 295 transitions. [2024-11-13 14:20:02,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-13 14:20:02,435 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 30 states have internal predecessors, (94), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) Word has length 68 [2024-11-13 14:20:02,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:20:02,436 INFO L225 Difference]: With dead ends: 263 [2024-11-13 14:20:02,436 INFO L226 Difference]: Without dead ends: 261 [2024-11-13 14:20:02,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 33.6s TimeCoverageRelationStatistics Valid=448, Invalid=1531, Unknown=1, NotChecked=0, Total=1980 [2024-11-13 14:20:02,438 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 71 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 26 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:20:02,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 304 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 835 Invalid, 1 Unknown, 0 Unchecked, 17.5s Time] [2024-11-13 14:20:02,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-13 14:20:02,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 221. [2024-11-13 14:20:02,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 201 states have (on average 1.0895522388059702) internal successors, (219), 203 states have internal predecessors, (219), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 14:20:02,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 249 transitions. [2024-11-13 14:20:02,461 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 249 transitions. Word has length 68 [2024-11-13 14:20:02,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:20:02,462 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 249 transitions. [2024-11-13 14:20:02,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.1333333333333333) internal successors, (94), 30 states have internal predecessors, (94), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-13 14:20:02,462 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 249 transitions. [2024-11-13 14:20:02,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-13 14:20:02,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:20:02,463 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:20:02,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 14:20:02,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:02,664 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:20:02,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:20:02,664 INFO L85 PathProgramCache]: Analyzing trace with hash -452469472, now seen corresponding path program 1 times [2024-11-13 14:20:02,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:20:02,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218451877] [2024-11-13 14:20:02,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:02,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:20:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:20:02,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:20:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:20:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:20:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:20:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:20:02,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 14:20:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,889 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 14:20:02,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:20:02,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218451877] [2024-11-13 14:20:02,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218451877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:20:02,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703182762] [2024-11-13 14:20:02,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:02,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:02,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:20:02,892 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:20:02,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-13 14:20:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:20:02,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 14:20:02,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:20:03,239 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 14:20:03,239 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:20:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-13 14:20:03,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703182762] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:20:03,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:20:03,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-13 14:20:03,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770699746] [2024-11-13 14:20:03,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:20:03,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 14:20:03,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:20:03,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 14:20:03,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-13 14:20:03,469 INFO L87 Difference]: Start difference. First operand 221 states and 249 transitions. Second operand has 19 states, 18 states have (on average 9.777777777777779) internal successors, (176), 19 states have internal predecessors, (176), 14 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2024-11-13 14:20:04,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:20:04,133 INFO L93 Difference]: Finished difference Result 449 states and 521 transitions. [2024-11-13 14:20:04,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-13 14:20:04,134 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 9.777777777777779) internal successors, (176), 19 states have internal predecessors, (176), 14 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) Word has length 93 [2024-11-13 14:20:04,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:20:04,136 INFO L225 Difference]: With dead ends: 449 [2024-11-13 14:20:04,136 INFO L226 Difference]: Without dead ends: 448 [2024-11-13 14:20:04,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=313, Invalid=679, Unknown=0, NotChecked=0, Total=992 [2024-11-13 14:20:04,137 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 340 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 14:20:04,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 275 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 14:20:04,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-13 14:20:04,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 390. [2024-11-13 14:20:04,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 360 states have (on average 1.1) internal successors, (396), 362 states have internal predecessors, (396), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-13 14:20:04,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 446 transitions. [2024-11-13 14:20:04,180 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 446 transitions. Word has length 93 [2024-11-13 14:20:04,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:20:04,181 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 446 transitions. [2024-11-13 14:20:04,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 9.777777777777779) internal successors, (176), 19 states have internal predecessors, (176), 14 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2024-11-13 14:20:04,181 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 446 transitions. [2024-11-13 14:20:04,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-13 14:20:04,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:20:04,182 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:20:04,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-13 14:20:04,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:04,383 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:20:04,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:20:04,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1599668219, now seen corresponding path program 3 times [2024-11-13 14:20:04,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:20:04,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036348262] [2024-11-13 14:20:04,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:20:04,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:20:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-13 14:20:04,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [216194310] [2024-11-13 14:20:04,419 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:20:04,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:20:04,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:20:04,423 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:20:04,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 14:20:04,563 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 14:20:04,563 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:20:04,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-13 14:20:04,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:20:12,123 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 18 proven. 44 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-13 14:20:12,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:20:25,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:20:25,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036348262] [2024-11-13 14:20:25,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-13 14:20:25,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216194310] [2024-11-13 14:20:25,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216194310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:20:25,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:20:25,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-13 14:20:25,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341817273] [2024-11-13 14:20:25,255 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-13 14:20:25,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-13 14:20:25,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:20:25,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-13 14:20:25,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=344, Unknown=1, NotChecked=0, Total=420 [2024-11-13 14:20:25,256 INFO L87 Difference]: Start difference. First operand 390 states and 446 transitions. Second operand has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:20:34,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:20:36,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.36s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:20:38,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:20:42,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:20:51,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:20:55,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:20:56,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:20:58,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:21:01,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:21:03,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:21:08,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:21:14,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-13 14:21:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:21:14,650 INFO L93 Difference]: Finished difference Result 390 states and 446 transitions. [2024-11-13 14:21:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:21:14,651 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 100 [2024-11-13 14:21:14,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:21:14,653 INFO L225 Difference]: With dead ends: 390 [2024-11-13 14:21:14,653 INFO L226 Difference]: Without dead ends: 389 [2024-11-13 14:21:14,653 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 26.3s TimeCoverageRelationStatistics Valid=120, Invalid=479, Unknown=1, NotChecked=0, Total=600 [2024-11-13 14:21:14,655 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 31 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 5 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.9s IncrementalHoareTripleChecker+Time [2024-11-13 14:21:14,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 125 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 299 Invalid, 9 Unknown, 0 Unchecked, 39.9s Time] [2024-11-13 14:21:14,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2024-11-13 14:21:14,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 375. [2024-11-13 14:21:14,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 346 states have (on average 1.092485549132948) internal successors, (378), 347 states have internal predecessors, (378), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-13 14:21:14,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 428 transitions. [2024-11-13 14:21:14,732 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 428 transitions. Word has length 100 [2024-11-13 14:21:14,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:21:14,733 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 428 transitions. [2024-11-13 14:21:14,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.0) internal successors, (48), 13 states have internal predecessors, (48), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-13 14:21:14,733 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 428 transitions. [2024-11-13 14:21:14,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 14:21:14,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:21:14,735 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:21:14,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-13 14:21:14,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-13 14:21:14,936 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:21:14,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:21:14,936 INFO L85 PathProgramCache]: Analyzing trace with hash -482590085, now seen corresponding path program 2 times [2024-11-13 14:21:14,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:21:14,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074656334] [2024-11-13 14:21:14,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:21:14,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:21:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:15,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:21:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:15,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:21:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:15,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:21:15,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:15,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:21:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:15,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 14:21:15,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:15,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:21:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:15,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:21:15,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:15,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 14:21:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:15,192 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 14:21:15,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:21:15,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074656334] [2024-11-13 14:21:15,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074656334] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:21:15,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541136379] [2024-11-13 14:21:15,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:21:15,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:21:15,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:21:15,195 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:21:15,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-13 14:21:15,292 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:21:15,292 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:21:15,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 14:21:15,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:21:15,452 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 14:21:15,452 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:21:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 14:21:15,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541136379] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:21:15,652 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:21:15,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-13 14:21:15,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314831005] [2024-11-13 14:21:15,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:21:15,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 14:21:15,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:21:15,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 14:21:15,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-13 14:21:15,654 INFO L87 Difference]: Start difference. First operand 375 states and 428 transitions. Second operand has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 12 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2024-11-13 14:21:16,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:21:16,188 INFO L93 Difference]: Finished difference Result 762 states and 888 transitions. [2024-11-13 14:21:16,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 14:21:16,188 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 12 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) Word has length 107 [2024-11-13 14:21:16,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:21:16,192 INFO L225 Difference]: With dead ends: 762 [2024-11-13 14:21:16,192 INFO L226 Difference]: Without dead ends: 761 [2024-11-13 14:21:16,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2024-11-13 14:21:16,193 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 337 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:21:16,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 144 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:21:16,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-13 14:21:16,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 605. [2024-11-13 14:21:16,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 562 states have (on average 1.0818505338078293) internal successors, (608), 563 states have internal predecessors, (608), 39 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-13 14:21:16,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 686 transitions. [2024-11-13 14:21:16,300 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 686 transitions. Word has length 107 [2024-11-13 14:21:16,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:21:16,300 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 686 transitions. [2024-11-13 14:21:16,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.692307692307692) internal successors, (139), 14 states have internal predecessors, (139), 12 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16) [2024-11-13 14:21:16,301 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 686 transitions. [2024-11-13 14:21:16,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-13 14:21:16,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:21:16,302 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:21:16,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-13 14:21:16,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-13 14:21:16,503 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:21:16,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:21:16,504 INFO L85 PathProgramCache]: Analyzing trace with hash 135930757, now seen corresponding path program 2 times [2024-11-13 14:21:16,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:21:16,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723823874] [2024-11-13 14:21:16,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:21:16,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:21:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:16,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:21:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:16,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:21:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:16,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:21:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:16,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:21:16,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:16,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 14:21:16,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:16,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:21:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:16,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:21:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:16,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 14:21:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:21:16,853 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 14:21:16,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:21:16,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723823874] [2024-11-13 14:21:16,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723823874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:21:16,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845263786] [2024-11-13 14:21:16,853 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 14:21:16,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:21:16,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:21:16,856 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:21:16,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-13 14:25:26,226 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 14:25:26,226 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:25:26,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 14:25:26,230 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:25:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 14:25:26,666 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:25:26,990 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-13 14:25:26,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845263786] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 14:25:26,990 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 14:25:26,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-13 14:25:26,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310737508] [2024-11-13 14:25:26,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 14:25:26,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-13 14:25:26,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:25:26,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-13 14:25:26,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2024-11-13 14:25:26,993 INFO L87 Difference]: Start difference. First operand 605 states and 686 transitions. Second operand has 25 states, 24 states have (on average 9.458333333333334) internal successors, (227), 25 states have internal predecessors, (227), 17 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-13 14:25:28,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:25:28,135 INFO L93 Difference]: Finished difference Result 1156 states and 1309 transitions. [2024-11-13 14:25:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 14:25:28,135 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 9.458333333333334) internal successors, (227), 25 states have internal predecessors, (227), 17 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) Word has length 115 [2024-11-13 14:25:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:25:28,140 INFO L225 Difference]: With dead ends: 1156 [2024-11-13 14:25:28,140 INFO L226 Difference]: Without dead ends: 1155 [2024-11-13 14:25:28,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 346 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=473, Invalid=1087, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 14:25:28,141 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 468 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 14:25:28,142 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [469 Valid, 342 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 14:25:28,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2024-11-13 14:25:28,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 687. [2024-11-13 14:25:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 639 states have (on average 1.0766823161189358) internal successors, (688), 640 states have internal predecessors, (688), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-13 14:25:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 776 transitions. [2024-11-13 14:25:28,284 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 776 transitions. Word has length 115 [2024-11-13 14:25:28,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:25:28,285 INFO L471 AbstractCegarLoop]: Abstraction has 687 states and 776 transitions. [2024-11-13 14:25:28,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 9.458333333333334) internal successors, (227), 25 states have internal predecessors, (227), 17 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 17 states have call predecessors, (21), 17 states have call successors, (21) [2024-11-13 14:25:28,285 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 776 transitions. [2024-11-13 14:25:28,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-13 14:25:28,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:25:28,287 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:25:28,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-13 14:25:28,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 14:25:28,488 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:25:28,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:25:28,489 INFO L85 PathProgramCache]: Analyzing trace with hash 430620437, now seen corresponding path program 3 times [2024-11-13 14:25:28,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:25:28,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97593344] [2024-11-13 14:25:28,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:25:28,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:25:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:28,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:25:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:28,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:25:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:28,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:25:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:28,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:25:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:28,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 14:25:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:28,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 14:25:28,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:28,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 14:25:28,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:28,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 14:25:28,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:28,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-13 14:25:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:28,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-13 14:25:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:28,982 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-13 14:25:28,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:25:28,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97593344] [2024-11-13 14:25:28,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97593344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:25:28,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796026437] [2024-11-13 14:25:28,983 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:25:28,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:25:28,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:25:28,985 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:25:28,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-13 14:25:29,050 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 14:25:29,050 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:25:29,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:25:29,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:25:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-11-13 14:25:29,276 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:25:29,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796026437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:25:29,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 14:25:29,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2024-11-13 14:25:29,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599359639] [2024-11-13 14:25:29,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:25:29,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:25:29,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:25:29,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:25:29,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-13 14:25:29,278 INFO L87 Difference]: Start difference. First operand 687 states and 776 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:25:29,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:25:29,639 INFO L93 Difference]: Finished difference Result 715 states and 804 transitions. [2024-11-13 14:25:29,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:25:29,640 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 155 [2024-11-13 14:25:29,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:25:29,642 INFO L225 Difference]: With dead ends: 715 [2024-11-13 14:25:29,642 INFO L226 Difference]: Without dead ends: 714 [2024-11-13 14:25:29,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-13 14:25:29,644 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 10 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 14:25:29,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 82 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 14:25:29,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2024-11-13 14:25:29,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 228. [2024-11-13 14:25:29,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 210 states have (on average 1.0666666666666667) internal successors, (224), 210 states have internal predecessors, (224), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-13 14:25:29,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 254 transitions. [2024-11-13 14:25:29,712 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 254 transitions. Word has length 155 [2024-11-13 14:25:29,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:25:29,713 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 254 transitions. [2024-11-13 14:25:29,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 14:25:29,714 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 254 transitions. [2024-11-13 14:25:29,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-13 14:25:29,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:25:29,716 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:25:29,737 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-13 14:25:29,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-13 14:25:29,916 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 14:25:29,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:25:29,917 INFO L85 PathProgramCache]: Analyzing trace with hash -2144420291, now seen corresponding path program 3 times [2024-11-13 14:25:29,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:25:29,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856211396] [2024-11-13 14:25:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:25:29,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:25:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 14:25:30,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 14:25:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-13 14:25:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-13 14:25:30,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 14:25:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 14:25:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 14:25:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 14:25:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 14:25:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-13 14:25:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-13 14:25:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2024-11-13 14:25:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-13 14:25:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2024-11-13 14:25:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:25:30,470 INFO L134 CoverageAnalysis]: Checked inductivity of 982 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-13 14:25:30,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:25:30,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856211396] [2024-11-13 14:25:30,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856211396] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:25:30,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38718321] [2024-11-13 14:25:30,471 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 14:25:30,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 14:25:30,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:25:30,473 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 14:25:30,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce0dc2c9-0432-49a0-ba4a-a2b3c4f5f8a5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-13 14:25:30,581 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-13 14:25:30,581 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 14:25:30,582 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 14:25:30,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:25:37,271 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|ULTIMATE.start_main_~b~0#1| Int)) (and (exists ((|ULTIMATE.start_main_~a~0#1| Int)) (and (exists ((v_y_42 Int) (v_z_42 Int)) (let ((.cse0 (+ (* 2 (* |c_ULTIMATE.start_main_~x~0#1| v_y_42)) (* |c_ULTIMATE.start_main_~x~0#1| v_z_42)))) (and (<= .cse0 9223372036854775807) (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) .cse0) (<= 0 v_z_42) (not (= v_z_42 1)) (not (= (+ v_z_42 (* v_y_42 2)) 0)) (<= v_z_42 1)))) (<= |ULTIMATE.start_main_~a~0#1| 50) (<= 0 |ULTIMATE.start_main_~a~0#1|))) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 50))) (exists ((|ULTIMATE.start_main_~b~0#1| Int)) (and (exists ((|ULTIMATE.start_main_~a~0#1| Int)) (and (<= |ULTIMATE.start_main_~a~0#1| 50) (exists ((|ULTIMATE.start_main_~y~0#1| Int)) (let ((.cse1 (* |c_ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~y~0#1|))) (and (<= (* |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) .cse1) (<= (+ |ULTIMATE.start_main_~y~0#1| 1) 0) (<= .cse1 9223372036854775807)))) (<= 0 |ULTIMATE.start_main_~a~0#1|))) (<= 1 |ULTIMATE.start_main_~b~0#1|) (<= |ULTIMATE.start_main_~b~0#1| 50)))) is different from true [2024-11-13 14:25:37,356 INFO L134 CoverageAnalysis]: Checked inductivity of 982 backedges. 80 proven. 20 refuted. 0 times theorem prover too weak. 862 trivial. 20 not checked. [2024-11-13 14:25:37,356 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 14:25:38,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38718321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 14:25:38,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 14:25:38,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-13 14:25:38,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423270484] [2024-11-13 14:25:38,897 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 14:25:38,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 14:25:38,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:25:38,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 14:25:38,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=741, Unknown=1, NotChecked=58, Total=992 [2024-11-13 14:25:38,899 INFO L87 Difference]: Start difference. First operand 228 states and 254 transitions. Second operand has 26 states, 24 states have (on average 7.583333333333333) internal successors, (182), 23 states have internal predecessors, (182), 17 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (19), 17 states have call predecessors, (19), 17 states have call successors, (19)