./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB --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 3b27cf24a9b45c76034fb9a60cae976f5ca5dfa5338fef373d189f4ae84c7ed4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:51:07,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:51:07,311 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 19:51:07,322 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:51:07,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:51:07,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:51:07,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:51:07,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:51:07,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:51:07,357 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:51:07,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:51:07,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:51:07,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:51:07,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:51:07,360 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:51:07,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:51:07,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:51:07,361 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 19:51:07,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:51:07,361 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 19:51:07,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:51:07,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:51:07,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:51:07,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:51:07,362 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 19:51:07,362 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:51:07,362 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 19:51:07,362 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:51:07,362 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:51:07,362 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:51:07,363 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:51:07,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:51:07,363 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:51:07,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:51:07,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:07,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:51:07,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:51:07,363 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:51:07,363 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:51:07,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:07,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:51:07,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:51:07,364 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:51:07,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:51:07,364 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:51:07,364 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:51:07,364 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:51:07,364 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:51:07,364 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:51:07,364 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:51:07,364 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 3b27cf24a9b45c76034fb9a60cae976f5ca5dfa5338fef373d189f4ae84c7ed4 [2024-11-27 19:51:07,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:51:07,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:51:07,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:51:07,734 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:51:07,735 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:51:07,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c [2024-11-27 19:51:11,255 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/data/f21f4fc88/ae8681a1f815468ab5385ceeb49059ab/FLAGbbece63c7 [2024-11-27 19:51:11,558 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:51:11,559 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound50.c [2024-11-27 19:51:11,567 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/data/f21f4fc88/ae8681a1f815468ab5385ceeb49059ab/FLAGbbece63c7 [2024-11-27 19:51:11,586 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/data/f21f4fc88/ae8681a1f815468ab5385ceeb49059ab [2024-11-27 19:51:11,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:51:11,590 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:51:11,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:11,592 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:51:11,595 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:51:11,596 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,596 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c0f014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11, skipping insertion in model container [2024-11-27 19:51:11,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,614 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:51:11,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:11,842 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:51:11,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:11,893 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:51:11,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11 WrapperNode [2024-11-27 19:51:11,894 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:11,895 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:11,895 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:51:11,895 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:51:11,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,949 INFO L138 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 101 [2024-11-27 19:51:11,949 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:11,950 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:51:11,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:51:11,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:51:11,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,964 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,985 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]. [2024-11-27 19:51:11,985 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,985 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,992 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,993 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:11,999 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:12,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:12,001 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:12,006 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:51:12,007 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:51:12,007 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:51:12,007 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:51:12,008 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (1/1) ... [2024-11-27 19:51:12,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:12,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:12,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:51:12,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:51:12,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:51:12,087 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 19:51:12,087 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 19:51:12,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:51:12,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:51:12,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:51:12,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 19:51:12,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 19:51:12,143 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:51:12,145 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:51:12,620 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2024-11-27 19:51:12,620 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:51:12,640 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:51:12,641 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 19:51:12,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:12 BoogieIcfgContainer [2024-11-27 19:51:12,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:51:12,645 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:51:12,645 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:51:12,652 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:51:12,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:51:11" (1/3) ... [2024-11-27 19:51:12,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c771d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:12, skipping insertion in model container [2024-11-27 19:51:12,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:11" (2/3) ... [2024-11-27 19:51:12,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c771d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:12, skipping insertion in model container [2024-11-27 19:51:12,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:12" (3/3) ... [2024-11-27 19:51:12,655 INFO L128 eAbstractionObserver]: Analyzing ICFG prod4br-ll_valuebound50.c [2024-11-27 19:51:12,677 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:51:12,679 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG prod4br-ll_valuebound50.c that has 3 procedures, 112 locations, 1 initial locations, 1 loop locations, and 42 error locations. [2024-11-27 19:51:12,763 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:51:12,787 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;@6db323b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:51:12,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2024-11-27 19:51:12,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 61 states have (on average 1.819672131147541) internal successors, (111), 103 states have internal predecessors, (111), 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) [2024-11-27 19:51:12,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-27 19:51:12,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:12,806 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:12,806 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:12,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:12,814 INFO L85 PathProgramCache]: Analyzing trace with hash 986928236, now seen corresponding path program 1 times [2024-11-27 19:51:12,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:12,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590431888] [2024-11-27 19:51:12,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:12,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:13,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 19:51:13,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:13,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590431888] [2024-11-27 19:51:13,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590431888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:13,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354442960] [2024-11-27 19:51:13,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:13,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:13,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:13,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:13,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 19:51:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:13,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 19:51:13,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-27 19:51:13,117 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:13,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354442960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:13,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:51:13,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 19:51:13,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049269717] [2024-11-27 19:51:13,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:13,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 19:51:13,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:13,146 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 19:51:13,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:51:13,149 INFO L87 Difference]: Start difference. First operand has 112 states, 61 states have (on average 1.819672131147541) internal successors, (111), 103 states have internal predecessors, (111), 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 19:51:13,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:13,180 INFO L93 Difference]: Finished difference Result 220 states and 247 transitions. [2024-11-27 19:51:13,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 19:51:13,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2024-11-27 19:51:13,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:13,189 INFO L225 Difference]: With dead ends: 220 [2024-11-27 19:51:13,189 INFO L226 Difference]: Without dead ends: 105 [2024-11-27 19:51:13,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 19:51:13,196 INFO L435 NwaCegarLoop]: 118 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, 118 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 [2024-11-27 19:51:13,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:13,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-27 19:51:13,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-27 19:51:13,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 56 states have (on average 1.8035714285714286) internal successors, (101), 97 states have internal predecessors, (101), 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) [2024-11-27 19:51:13,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 111 transitions. [2024-11-27 19:51:13,267 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 111 transitions. Word has length 20 [2024-11-27 19:51:13,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:13,268 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 111 transitions. [2024-11-27 19:51:13,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-27 19:51:13,269 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 111 transitions. [2024-11-27 19:51:13,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-27 19:51:13,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:13,270 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:13,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:13,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:13,473 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:13,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:13,473 INFO L85 PathProgramCache]: Analyzing trace with hash -425320086, now seen corresponding path program 1 times [2024-11-27 19:51:13,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:13,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291443054] [2024-11-27 19:51:13,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:13,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:13,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1495251388] [2024-11-27 19:51:13,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:13,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:13,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:13,518 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:13,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 19:51:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:13,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 19:51:13,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:13,913 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:13,914 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:13,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:13,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291443054] [2024-11-27 19:51:13,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:13,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495251388] [2024-11-27 19:51:13,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495251388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:13,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:13,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 19:51:13,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54206006] [2024-11-27 19:51:13,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:13,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:51:13,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:13,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:51:13,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:51:13,919 INFO L87 Difference]: Start difference. First operand 105 states and 111 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-27 19:51:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:14,496 INFO L93 Difference]: Finished difference Result 140 states and 166 transitions. [2024-11-27 19:51:14,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 19:51:14,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 20 [2024-11-27 19:51:14,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:14,498 INFO L225 Difference]: With dead ends: 140 [2024-11-27 19:51:14,499 INFO L226 Difference]: Without dead ends: 129 [2024-11-27 19:51:14,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:51:14,500 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 152 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:14,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 228 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:51:14,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-27 19:51:14,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 124. [2024-11-27 19:51:14,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 77 states have (on average 1.6623376623376624) internal successors, (128), 114 states have internal predecessors, (128), 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) [2024-11-27 19:51:14,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 142 transitions. [2024-11-27 19:51:14,522 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 142 transitions. Word has length 20 [2024-11-27 19:51:14,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:14,524 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 142 transitions. [2024-11-27 19:51:14,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-27 19:51:14,524 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 142 transitions. [2024-11-27 19:51:14,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-27 19:51:14,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:14,525 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:14,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 19:51:14,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:14,726 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:14,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:14,726 INFO L85 PathProgramCache]: Analyzing trace with hash -300020729, now seen corresponding path program 1 times [2024-11-27 19:51:14,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:14,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071538210] [2024-11-27 19:51:14,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:14,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:14,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447057597] [2024-11-27 19:51:14,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:14,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:14,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:14,768 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:14,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 19:51:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:14,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 19:51:14,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:14,976 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:14,976 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:14,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:14,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071538210] [2024-11-27 19:51:14,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:14,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447057597] [2024-11-27 19:51:14,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447057597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:14,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:14,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 19:51:14,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579928583] [2024-11-27 19:51:14,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:14,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:51:14,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:14,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:51:14,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:51:14,978 INFO L87 Difference]: Start difference. First operand 124 states and 142 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) [2024-11-27 19:51:15,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:15,497 INFO L93 Difference]: Finished difference Result 169 states and 205 transitions. [2024-11-27 19:51:15,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 19:51:15,498 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 [2024-11-27 19:51:15,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:15,499 INFO L225 Difference]: With dead ends: 169 [2024-11-27 19:51:15,499 INFO L226 Difference]: Without dead ends: 153 [2024-11-27 19:51:15,500 INFO L434 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 [2024-11-27 19:51:15,500 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 298 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:15,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 196 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:51:15,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-27 19:51:15,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2024-11-27 19:51:15,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 102 states have (on average 1.6274509803921569) internal successors, (166), 139 states have internal predecessors, (166), 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) [2024-11-27 19:51:15,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 182 transitions. [2024-11-27 19:51:15,520 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 182 transitions. Word has length 21 [2024-11-27 19:51:15,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:15,521 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 182 transitions. [2024-11-27 19:51:15,521 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) [2024-11-27 19:51:15,521 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 182 transitions. [2024-11-27 19:51:15,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-27 19:51:15,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:15,522 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:15,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:15,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-27 19:51:15,722 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:15,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:15,723 INFO L85 PathProgramCache]: Analyzing trace with hash -710707956, now seen corresponding path program 1 times [2024-11-27 19:51:15,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:15,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870446521] [2024-11-27 19:51:15,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:15,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:15,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [547517402] [2024-11-27 19:51:15,751 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:15,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:15,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:15,755 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:15,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 19:51:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:15,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 19:51:15,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:15,982 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:15,982 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:15,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:15,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870446521] [2024-11-27 19:51:15,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:15,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547517402] [2024-11-27 19:51:15,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547517402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:15,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:15,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 19:51:15,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212309550] [2024-11-27 19:51:15,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:15,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:51:15,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:15,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:51:15,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:51:15,984 INFO L87 Difference]: Start difference. First operand 150 states and 182 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) [2024-11-27 19:51:16,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:16,384 INFO L93 Difference]: Finished difference Result 158 states and 189 transitions. [2024-11-27 19:51:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 19:51:16,385 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 [2024-11-27 19:51:16,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:16,387 INFO L225 Difference]: With dead ends: 158 [2024-11-27 19:51:16,387 INFO L226 Difference]: Without dead ends: 157 [2024-11-27 19:51:16,387 INFO L434 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 [2024-11-27 19:51:16,388 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 134 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:16,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 243 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:51:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-27 19:51:16,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 150. [2024-11-27 19:51:16,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 102 states have (on average 1.6176470588235294) internal successors, (165), 139 states have internal predecessors, (165), 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) [2024-11-27 19:51:16,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 181 transitions. [2024-11-27 19:51:16,411 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 181 transitions. Word has length 22 [2024-11-27 19:51:16,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:16,411 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 181 transitions. [2024-11-27 19:51:16,411 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) [2024-11-27 19:51:16,411 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 181 transitions. [2024-11-27 19:51:16,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-27 19:51:16,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:16,412 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:16,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:16,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:16,612 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:16,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:16,613 INFO L85 PathProgramCache]: Analyzing trace with hash -557110103, now seen corresponding path program 1 times [2024-11-27 19:51:16,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:16,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37215663] [2024-11-27 19:51:16,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:16,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:16,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1932914962] [2024-11-27 19:51:16,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:16,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:16,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:16,653 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:16,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 19:51:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:16,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-27 19:51:16,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:16,932 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:16,933 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:16,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:16,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37215663] [2024-11-27 19:51:16,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:16,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932914962] [2024-11-27 19:51:16,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932914962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:16,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:16,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 19:51:16,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612127169] [2024-11-27 19:51:16,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:16,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 19:51:16,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:16,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 19:51:16,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 19:51:16,935 INFO L87 Difference]: Start difference. First operand 150 states and 181 transitions. Second operand has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 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) [2024-11-27 19:51:17,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:17,323 INFO L93 Difference]: Finished difference Result 158 states and 188 transitions. [2024-11-27 19:51:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 19:51:17,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 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 23 [2024-11-27 19:51:17,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:17,326 INFO L225 Difference]: With dead ends: 158 [2024-11-27 19:51:17,326 INFO L226 Difference]: Without dead ends: 157 [2024-11-27 19:51:17,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:51:17,328 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 362 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:17,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 235 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:51:17,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-27 19:51:17,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 150. [2024-11-27 19:51:17,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 102 states have (on average 1.607843137254902) internal successors, (164), 139 states have internal predecessors, (164), 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) [2024-11-27 19:51:17,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 180 transitions. [2024-11-27 19:51:17,339 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 180 transitions. Word has length 23 [2024-11-27 19:51:17,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:17,339 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 180 transitions. [2024-11-27 19:51:17,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 7 states have internal predecessors, (11), 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) [2024-11-27 19:51:17,340 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 180 transitions. [2024-11-27 19:51:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-27 19:51:17,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:17,343 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:17,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:17,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:17,544 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:17,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:17,544 INFO L85 PathProgramCache]: Analyzing trace with hash -90543954, now seen corresponding path program 1 times [2024-11-27 19:51:17,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:17,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009959864] [2024-11-27 19:51:17,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:17,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:17,713 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:17,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:17,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009959864] [2024-11-27 19:51:17,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009959864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:17,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:17,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:17,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73853962] [2024-11-27 19:51:17,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:17,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:17,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:17,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:17,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:17,715 INFO L87 Difference]: Start difference. First operand 150 states and 180 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) [2024-11-27 19:51:18,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:18,118 INFO L93 Difference]: Finished difference Result 242 states and 288 transitions. [2024-11-27 19:51:18,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:18,119 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 [2024-11-27 19:51:18,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:18,121 INFO L225 Difference]: With dead ends: 242 [2024-11-27 19:51:18,121 INFO L226 Difference]: Without dead ends: 241 [2024-11-27 19:51:18,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:18,122 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 93 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:18,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 165 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:51:18,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-27 19:51:18,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 170. [2024-11-27 19:51:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 121 states have (on average 1.6115702479338843) internal successors, (195), 158 states have internal predecessors, (195), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 19:51:18,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 213 transitions. [2024-11-27 19:51:18,142 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 213 transitions. Word has length 24 [2024-11-27 19:51:18,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:18,142 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 213 transitions. [2024-11-27 19:51:18,142 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) [2024-11-27 19:51:18,142 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 213 transitions. [2024-11-27 19:51:18,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 19:51:18,143 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:18,143 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:18,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 19:51:18,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:18,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:18,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1488104779, now seen corresponding path program 1 times [2024-11-27 19:51:18,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:18,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379719395] [2024-11-27 19:51:18,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:18,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:18,261 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:18,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:18,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379719395] [2024-11-27 19:51:18,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379719395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:18,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:18,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:18,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270853429] [2024-11-27 19:51:18,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:18,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:18,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:18,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:18,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:18,264 INFO L87 Difference]: Start difference. First operand 170 states and 213 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-27 19:51:18,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:18,824 INFO L93 Difference]: Finished difference Result 242 states and 286 transitions. [2024-11-27 19:51:18,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:18,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 25 [2024-11-27 19:51:18,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:18,827 INFO L225 Difference]: With dead ends: 242 [2024-11-27 19:51:18,827 INFO L226 Difference]: Without dead ends: 241 [2024-11-27 19:51:18,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:18,830 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 91 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:18,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 149 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:51:18,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-27 19:51:18,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 170. [2024-11-27 19:51:18,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 121 states have (on average 1.5950413223140496) internal successors, (193), 158 states have internal predecessors, (193), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 19:51:18,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 211 transitions. [2024-11-27 19:51:18,842 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 211 transitions. Word has length 25 [2024-11-27 19:51:18,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:18,843 INFO L471 AbstractCegarLoop]: Abstraction has 170 states and 211 transitions. [2024-11-27 19:51:18,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-27 19:51:18,843 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 211 transitions. [2024-11-27 19:51:18,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 19:51:18,844 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:18,844 INFO L218 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] [2024-11-27 19:51:18,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 19:51:18,844 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:18,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:18,845 INFO L85 PathProgramCache]: Analyzing trace with hash 754137428, now seen corresponding path program 1 times [2024-11-27 19:51:18,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:18,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459701980] [2024-11-27 19:51:18,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:18,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:18,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [770552725] [2024-11-27 19:51:18,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:18,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:18,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:18,895 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:18,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 19:51:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:18,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:51:18,955 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:19,074 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:19,074 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:19,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:19,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459701980] [2024-11-27 19:51:19,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:19,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770552725] [2024-11-27 19:51:19,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770552725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:19,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:19,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:19,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729448610] [2024-11-27 19:51:19,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:19,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:19,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:19,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:19,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:19,076 INFO L87 Difference]: Start difference. First operand 170 states and 211 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2024-11-27 19:51:19,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:19,352 INFO L93 Difference]: Finished difference Result 180 states and 219 transitions. [2024-11-27 19:51:19,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:19,353 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), 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 38 [2024-11-27 19:51:19,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:19,354 INFO L225 Difference]: With dead ends: 180 [2024-11-27 19:51:19,354 INFO L226 Difference]: Without dead ends: 177 [2024-11-27 19:51:19,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:51:19,355 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 154 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:19,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 115 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:51:19,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-27 19:51:19,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2024-11-27 19:51:19,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 125 states have (on average 1.568) internal successors, (196), 162 states have internal predecessors, (196), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 19:51:19,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 214 transitions. [2024-11-27 19:51:19,372 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 214 transitions. Word has length 38 [2024-11-27 19:51:19,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:19,373 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 214 transitions. [2024-11-27 19:51:19,373 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), 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) [2024-11-27 19:51:19,373 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 214 transitions. [2024-11-27 19:51:19,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-27 19:51:19,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:19,374 INFO L218 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] [2024-11-27 19:51:19,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:19,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:19,575 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:19,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:19,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1916814937, now seen corresponding path program 1 times [2024-11-27 19:51:19,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:19,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954946894] [2024-11-27 19:51:19,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:19,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:19,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2118916498] [2024-11-27 19:51:19,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:19,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:19,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:19,623 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:19,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 19:51:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:19,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:51:19,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:19,768 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:19,768 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:19,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:19,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954946894] [2024-11-27 19:51:19,768 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:19,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118916498] [2024-11-27 19:51:19,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118916498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:19,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:19,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:19,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465333846] [2024-11-27 19:51:19,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:19,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:19,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:19,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:19,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:19,769 INFO L87 Difference]: Start difference. First operand 174 states and 214 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) [2024-11-27 19:51:20,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:20,008 INFO L93 Difference]: Finished difference Result 222 states and 281 transitions. [2024-11-27 19:51:20,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:20,008 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 [2024-11-27 19:51:20,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:20,010 INFO L225 Difference]: With dead ends: 222 [2024-11-27 19:51:20,010 INFO L226 Difference]: Without dead ends: 216 [2024-11-27 19:51:20,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:51:20,011 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 143 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:20,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 124 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:51:20,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-27 19:51:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 201. [2024-11-27 19:51:20,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 151 states have (on average 1.5894039735099337) internal successors, (240), 188 states have internal predecessors, (240), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 19:51:20,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 260 transitions. [2024-11-27 19:51:20,037 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 260 transitions. Word has length 39 [2024-11-27 19:51:20,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:20,038 INFO L471 AbstractCegarLoop]: Abstraction has 201 states and 260 transitions. [2024-11-27 19:51:20,038 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) [2024-11-27 19:51:20,038 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 260 transitions. [2024-11-27 19:51:20,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-27 19:51:20,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:20,043 INFO L218 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] [2024-11-27 19:51:20,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:20,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:20,243 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:20,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:20,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1903423883, now seen corresponding path program 1 times [2024-11-27 19:51:20,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:20,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886222184] [2024-11-27 19:51:20,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:20,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:20,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1662942250] [2024-11-27 19:51:20,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:20,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:20,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:20,283 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:20,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 19:51:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:20,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:51:20,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:20,412 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:20,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:20,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886222184] [2024-11-27 19:51:20,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:20,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662942250] [2024-11-27 19:51:20,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662942250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:20,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:20,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:20,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57970316] [2024-11-27 19:51:20,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:20,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:20,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:20,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:20,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:20,414 INFO L87 Difference]: Start difference. First operand 201 states and 260 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (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) [2024-11-27 19:51:20,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:20,646 INFO L93 Difference]: Finished difference Result 261 states and 351 transitions. [2024-11-27 19:51:20,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:20,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 3 states have call successors, (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 39 [2024-11-27 19:51:20,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:20,650 INFO L225 Difference]: With dead ends: 261 [2024-11-27 19:51:20,650 INFO L226 Difference]: Without dead ends: 255 [2024-11-27 19:51:20,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:51:20,651 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 202 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:20,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 84 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:51:20,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2024-11-27 19:51:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 235. [2024-11-27 19:51:20,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 184 states have (on average 1.641304347826087) internal successors, (302), 221 states have internal predecessors, (302), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 19:51:20,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 324 transitions. [2024-11-27 19:51:20,669 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 324 transitions. Word has length 39 [2024-11-27 19:51:20,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:20,670 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 324 transitions. [2024-11-27 19:51:20,670 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), 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) [2024-11-27 19:51:20,670 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 324 transitions. [2024-11-27 19:51:20,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 19:51:20,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:20,671 INFO L218 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, 1] [2024-11-27 19:51:20,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 19:51:20,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:20,872 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:20,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:20,872 INFO L85 PathProgramCache]: Analyzing trace with hash -708278985, now seen corresponding path program 1 times [2024-11-27 19:51:20,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:20,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613509812] [2024-11-27 19:51:20,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:20,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:20,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802922881] [2024-11-27 19:51:20,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:20,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:20,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:20,918 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:20,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 19:51:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:20,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 19:51:20,964 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:21,060 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:21,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:21,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613509812] [2024-11-27 19:51:21,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:21,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802922881] [2024-11-27 19:51:21,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802922881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:21,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:21,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:21,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993166132] [2024-11-27 19:51:21,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:21,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:21,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:21,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:21,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:21,062 INFO L87 Difference]: Start difference. First operand 235 states and 324 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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) [2024-11-27 19:51:21,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:21,331 INFO L93 Difference]: Finished difference Result 247 states and 331 transitions. [2024-11-27 19:51:21,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:21,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 [2024-11-27 19:51:21,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:21,333 INFO L225 Difference]: With dead ends: 247 [2024-11-27 19:51:21,333 INFO L226 Difference]: Without dead ends: 243 [2024-11-27 19:51:21,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 19:51:21,334 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 187 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:21,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 92 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:51:21,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2024-11-27 19:51:21,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 235. [2024-11-27 19:51:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 184 states have (on average 1.6141304347826086) internal successors, (297), 221 states have internal predecessors, (297), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 19:51:21,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 319 transitions. [2024-11-27 19:51:21,347 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 319 transitions. Word has length 40 [2024-11-27 19:51:21,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:21,348 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 319 transitions. [2024-11-27 19:51:21,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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) [2024-11-27 19:51:21,348 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 319 transitions. [2024-11-27 19:51:21,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 19:51:21,349 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:21,349 INFO L218 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, 1] [2024-11-27 19:51:21,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:21,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 19:51:21,550 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:21,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:21,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1123401674, now seen corresponding path program 1 times [2024-11-27 19:51:21,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:21,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586681944] [2024-11-27 19:51:21,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:21,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:21,694 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:21,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:21,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586681944] [2024-11-27 19:51:21,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586681944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:21,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:21,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:21,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876469766] [2024-11-27 19:51:21,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:21,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:21,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:21,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:21,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:21,695 INFO L87 Difference]: Start difference. First operand 235 states and 319 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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) [2024-11-27 19:51:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:21,973 INFO L93 Difference]: Finished difference Result 318 states and 411 transitions. [2024-11-27 19:51:21,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:21,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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 [2024-11-27 19:51:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:21,976 INFO L225 Difference]: With dead ends: 318 [2024-11-27 19:51:21,976 INFO L226 Difference]: Without dead ends: 317 [2024-11-27 19:51:21,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:21,977 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 61 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:21,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 213 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:51:21,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-27 19:51:21,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 245. [2024-11-27 19:51:21,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 194 states have (on average 1.6082474226804124) internal successors, (312), 231 states have internal predecessors, (312), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 19:51:21,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 334 transitions. [2024-11-27 19:51:21,995 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 334 transitions. Word has length 40 [2024-11-27 19:51:21,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:21,996 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 334 transitions. [2024-11-27 19:51:21,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 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) [2024-11-27 19:51:21,996 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 334 transitions. [2024-11-27 19:51:21,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 19:51:21,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:21,998 INFO L218 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, 1, 1] [2024-11-27 19:51:21,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 19:51:21,998 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:21,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:21,999 INFO L85 PathProgramCache]: Analyzing trace with hash -67643557, now seen corresponding path program 1 times [2024-11-27 19:51:21,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:21,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937458462] [2024-11-27 19:51:21,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:21,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:22,192 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:22,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:22,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937458462] [2024-11-27 19:51:22,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937458462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:22,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:22,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:51:22,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43504509] [2024-11-27 19:51:22,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:22,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:51:22,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:22,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:51:22,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:51:22,193 INFO L87 Difference]: Start difference. First operand 245 states and 334 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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) [2024-11-27 19:51:22,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:22,848 INFO L93 Difference]: Finished difference Result 344 states and 492 transitions. [2024-11-27 19:51:22,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:51:22,848 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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 41 [2024-11-27 19:51:22,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:22,850 INFO L225 Difference]: With dead ends: 344 [2024-11-27 19:51:22,850 INFO L226 Difference]: Without dead ends: 342 [2024-11-27 19:51:22,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:51:22,851 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 370 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:22,851 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 142 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 19:51:22,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-27 19:51:22,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 251. [2024-11-27 19:51:22,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 200 states have (on average 1.595) internal successors, (319), 237 states have internal predecessors, (319), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 19:51:22,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 341 transitions. [2024-11-27 19:51:22,868 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 341 transitions. Word has length 41 [2024-11-27 19:51:22,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:22,868 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 341 transitions. [2024-11-27 19:51:22,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 states have internal predecessors, (27), 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) [2024-11-27 19:51:22,868 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 341 transitions. [2024-11-27 19:51:22,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 19:51:22,869 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:22,869 INFO L218 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, 1, 1] [2024-11-27 19:51:22,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 19:51:22,870 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:22,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:22,870 INFO L85 PathProgramCache]: Analyzing trace with hash -481811941, now seen corresponding path program 1 times [2024-11-27 19:51:22,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:22,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248763822] [2024-11-27 19:51:22,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:22,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:22,952 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:22,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:22,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248763822] [2024-11-27 19:51:22,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248763822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:22,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:22,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:22,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541436873] [2024-11-27 19:51:22,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:22,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:22,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:22,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:22,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:22,954 INFO L87 Difference]: Start difference. First operand 251 states and 341 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-27 19:51:23,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:23,145 INFO L93 Difference]: Finished difference Result 318 states and 407 transitions. [2024-11-27 19:51:23,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:23,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 41 [2024-11-27 19:51:23,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:23,148 INFO L225 Difference]: With dead ends: 318 [2024-11-27 19:51:23,148 INFO L226 Difference]: Without dead ends: 317 [2024-11-27 19:51:23,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:23,149 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 61 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:23,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 213 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:51:23,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-27 19:51:23,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 261. [2024-11-27 19:51:23,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 210 states have (on average 1.5904761904761904) internal successors, (334), 247 states have internal predecessors, (334), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 19:51:23,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 356 transitions. [2024-11-27 19:51:23,170 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 356 transitions. Word has length 41 [2024-11-27 19:51:23,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:23,170 INFO L471 AbstractCegarLoop]: Abstraction has 261 states and 356 transitions. [2024-11-27 19:51:23,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-27 19:51:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 356 transitions. [2024-11-27 19:51:23,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 19:51:23,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:23,172 INFO L218 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, 1, 1] [2024-11-27 19:51:23,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 19:51:23,172 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:23,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:23,173 INFO L85 PathProgramCache]: Analyzing trace with hash -465713427, now seen corresponding path program 1 times [2024-11-27 19:51:23,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:23,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732942457] [2024-11-27 19:51:23,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:23,305 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:23,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:23,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732942457] [2024-11-27 19:51:23,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732942457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:23,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:23,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:23,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710066214] [2024-11-27 19:51:23,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:23,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:23,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:23,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:23,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:23,308 INFO L87 Difference]: Start difference. First operand 261 states and 356 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-27 19:51:23,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:23,835 INFO L93 Difference]: Finished difference Result 318 states and 405 transitions. [2024-11-27 19:51:23,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:23,836 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 41 [2024-11-27 19:51:23,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:23,838 INFO L225 Difference]: With dead ends: 318 [2024-11-27 19:51:23,838 INFO L226 Difference]: Without dead ends: 317 [2024-11-27 19:51:23,839 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:23,839 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 60 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:23,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 239 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:51:23,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2024-11-27 19:51:23,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 263. [2024-11-27 19:51:23,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 212 states have (on average 1.5849056603773586) internal successors, (336), 249 states have internal predecessors, (336), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 19:51:23,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 358 transitions. [2024-11-27 19:51:23,859 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 358 transitions. Word has length 41 [2024-11-27 19:51:23,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:23,859 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 358 transitions. [2024-11-27 19:51:23,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2024-11-27 19:51:23,860 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 358 transitions. [2024-11-27 19:51:23,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 19:51:23,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:23,860 INFO L218 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, 1, 1] [2024-11-27 19:51:23,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 19:51:23,861 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:23,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:23,862 INFO L85 PathProgramCache]: Analyzing trace with hash 33340455, now seen corresponding path program 1 times [2024-11-27 19:51:23,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:23,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966521949] [2024-11-27 19:51:23,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:23,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:23,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1338856268] [2024-11-27 19:51:23,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:23,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:23,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:23,908 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:23,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 19:51:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:23,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 19:51:23,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:24,385 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:24,386 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:35,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:35,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966521949] [2024-11-27 19:51:35,245 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:35,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338856268] [2024-11-27 19:51:35,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338856268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:35,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:51:35,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 19:51:35,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505160187] [2024-11-27 19:51:35,247 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:35,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 19:51:35,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:35,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 19:51:35,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:51:35,249 INFO L87 Difference]: Start difference. First operand 263 states and 358 transitions. Second operand has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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) [2024-11-27 19:51:35,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:35,917 INFO L93 Difference]: Finished difference Result 371 states and 519 transitions. [2024-11-27 19:51:35,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 19:51:35,917 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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 41 [2024-11-27 19:51:35,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:35,919 INFO L225 Difference]: With dead ends: 371 [2024-11-27 19:51:35,919 INFO L226 Difference]: Without dead ends: 346 [2024-11-27 19:51:35,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2024-11-27 19:51:35,920 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 205 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:35,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 224 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:51:35,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-27 19:51:35,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 331. [2024-11-27 19:51:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 277 states have (on average 1.5415162454873645) internal successors, (427), 314 states have internal predecessors, (427), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 19:51:35,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 455 transitions. [2024-11-27 19:51:35,938 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 455 transitions. Word has length 41 [2024-11-27 19:51:35,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:35,938 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 455 transitions. [2024-11-27 19:51:35,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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) [2024-11-27 19:51:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 455 transitions. [2024-11-27 19:51:35,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 19:51:35,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:35,939 INFO L218 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, 1, 1, 1] [2024-11-27 19:51:35,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 19:51:36,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 19:51:36,144 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:36,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:36,144 INFO L85 PathProgramCache]: Analyzing trace with hash -2096950137, now seen corresponding path program 1 times [2024-11-27 19:51:36,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:36,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071218677] [2024-11-27 19:51:36,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:36,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:36,263 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:36,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:36,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071218677] [2024-11-27 19:51:36,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071218677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:36,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:36,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:51:36,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957672447] [2024-11-27 19:51:36,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:36,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:51:36,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:36,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:51:36,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:51:36,265 INFO L87 Difference]: Start difference. First operand 331 states and 455 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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) [2024-11-27 19:51:36,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:36,754 INFO L93 Difference]: Finished difference Result 342 states and 467 transitions. [2024-11-27 19:51:36,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:51:36,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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 42 [2024-11-27 19:51:36,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:36,756 INFO L225 Difference]: With dead ends: 342 [2024-11-27 19:51:36,756 INFO L226 Difference]: Without dead ends: 340 [2024-11-27 19:51:36,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:51:36,757 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 388 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:36,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 112 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:51:36,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-27 19:51:36,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 331. [2024-11-27 19:51:36,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 277 states have (on average 1.5306859205776173) internal successors, (424), 314 states have internal predecessors, (424), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 19:51:36,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 452 transitions. [2024-11-27 19:51:36,777 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 452 transitions. Word has length 42 [2024-11-27 19:51:36,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:36,777 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 452 transitions. [2024-11-27 19:51:36,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 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) [2024-11-27 19:51:36,778 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 452 transitions. [2024-11-27 19:51:36,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 19:51:36,778 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:36,779 INFO L218 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, 1, 1, 1] [2024-11-27 19:51:36,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 19:51:36,779 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:36,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:36,779 INFO L85 PathProgramCache]: Analyzing trace with hash -2051268167, now seen corresponding path program 1 times [2024-11-27 19:51:36,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:36,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42277380] [2024-11-27 19:51:36,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:36,922 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:36,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:36,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42277380] [2024-11-27 19:51:36,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42277380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:36,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:36,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:36,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740608167] [2024-11-27 19:51:36,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:36,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:36,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:36,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:36,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:36,924 INFO L87 Difference]: Start difference. First operand 331 states and 452 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-27 19:51:37,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:37,337 INFO L93 Difference]: Finished difference Result 369 states and 486 transitions. [2024-11-27 19:51:37,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:37,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 42 [2024-11-27 19:51:37,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:37,339 INFO L225 Difference]: With dead ends: 369 [2024-11-27 19:51:37,340 INFO L226 Difference]: Without dead ends: 368 [2024-11-27 19:51:37,340 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:37,340 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 43 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:37,341 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 194 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:51:37,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-27 19:51:37,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 333. [2024-11-27 19:51:37,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 279 states have (on average 1.5268817204301075) internal successors, (426), 316 states have internal predecessors, (426), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-27 19:51:37,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 454 transitions. [2024-11-27 19:51:37,361 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 454 transitions. Word has length 42 [2024-11-27 19:51:37,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:37,361 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 454 transitions. [2024-11-27 19:51:37,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-27 19:51:37,361 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 454 transitions. [2024-11-27 19:51:37,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 19:51:37,362 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:37,362 INFO L218 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, 1, 1, 1] [2024-11-27 19:51:37,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 19:51:37,363 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:37,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:37,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1033554154, now seen corresponding path program 1 times [2024-11-27 19:51:37,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:37,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381098517] [2024-11-27 19:51:37,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:37,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:37,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145793634] [2024-11-27 19:51:37,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:37,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:37,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:37,389 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:37,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 19:51:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:37,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 19:51:37,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:38,084 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:38,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:39,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:39,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381098517] [2024-11-27 19:51:39,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:39,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145793634] [2024-11-27 19:51:39,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145793634] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:39,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:51:39,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 19:51:39,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089494119] [2024-11-27 19:51:39,856 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:39,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:51:39,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:39,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:51:39,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-27 19:51:39,858 INFO L87 Difference]: Start difference. First operand 333 states and 454 transitions. Second operand has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 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) [2024-11-27 19:51:41,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:41,585 INFO L93 Difference]: Finished difference Result 377 states and 506 transitions. [2024-11-27 19:51:41,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 19:51:41,585 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 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 42 [2024-11-27 19:51:41,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:41,588 INFO L225 Difference]: With dead ends: 377 [2024-11-27 19:51:41,588 INFO L226 Difference]: Without dead ends: 358 [2024-11-27 19:51:41,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=207, Invalid=443, Unknown=0, NotChecked=0, Total=650 [2024-11-27 19:51:41,592 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 389 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:41,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 240 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 19:51:41,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2024-11-27 19:51:41,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 282. [2024-11-27 19:51:41,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 232 states have (on average 1.4396551724137931) internal successors, (334), 269 states have internal predecessors, (334), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 19:51:41,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 354 transitions. [2024-11-27 19:51:41,612 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 354 transitions. Word has length 42 [2024-11-27 19:51:41,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:41,612 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 354 transitions. [2024-11-27 19:51:41,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 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) [2024-11-27 19:51:41,612 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 354 transitions. [2024-11-27 19:51:41,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 19:51:41,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:41,613 INFO L218 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] [2024-11-27 19:51:41,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 19:51:41,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:41,817 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:41,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:41,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1108098252, now seen corresponding path program 1 times [2024-11-27 19:51:41,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:41,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876127589] [2024-11-27 19:51:41,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:41,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:41,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:41,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090634125] [2024-11-27 19:51:41,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:41,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:41,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:41,844 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:41,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 19:51:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:41,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 19:51:41,900 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:42,626 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:44,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:44,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876127589] [2024-11-27 19:51:44,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:44,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090634125] [2024-11-27 19:51:44,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090634125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:44,291 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:51:44,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 19:51:44,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509087962] [2024-11-27 19:51:44,291 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:44,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 19:51:44,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:44,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 19:51:44,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2024-11-27 19:51:44,293 INFO L87 Difference]: Start difference. First operand 282 states and 354 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 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) [2024-11-27 19:51:45,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:45,601 INFO L93 Difference]: Finished difference Result 324 states and 407 transitions. [2024-11-27 19:51:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:51:45,602 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 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 44 [2024-11-27 19:51:45,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:45,603 INFO L225 Difference]: With dead ends: 324 [2024-11-27 19:51:45,603 INFO L226 Difference]: Without dead ends: 323 [2024-11-27 19:51:45,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-11-27 19:51:45,604 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 314 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:45,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 236 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 19:51:45,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2024-11-27 19:51:45,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 290. [2024-11-27 19:51:45,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 240 states have (on average 1.4208333333333334) internal successors, (341), 277 states have internal predecessors, (341), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 19:51:45,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 361 transitions. [2024-11-27 19:51:45,623 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 361 transitions. Word has length 44 [2024-11-27 19:51:45,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:45,624 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 361 transitions. [2024-11-27 19:51:45,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 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) [2024-11-27 19:51:45,624 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 361 transitions. [2024-11-27 19:51:45,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 19:51:45,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:45,625 INFO L218 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, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:45,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 19:51:45,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:45,829 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:45,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash 57920095, now seen corresponding path program 1 times [2024-11-27 19:51:45,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:45,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694269322] [2024-11-27 19:51:45,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:45,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:45,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345158409] [2024-11-27 19:51:45,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:45,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:45,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:45,852 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:45,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 19:51:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:45,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 19:51:45,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:46,099 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:46,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:46,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694269322] [2024-11-27 19:51:46,100 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:46,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345158409] [2024-11-27 19:51:46,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345158409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:46,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:46,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:51:46,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845447684] [2024-11-27 19:51:46,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:46,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:51:46,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:46,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:51:46,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:51:46,102 INFO L87 Difference]: Start difference. First operand 290 states and 361 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 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) [2024-11-27 19:51:46,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:46,554 INFO L93 Difference]: Finished difference Result 376 states and 487 transitions. [2024-11-27 19:51:46,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:51:46,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 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 45 [2024-11-27 19:51:46,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:46,556 INFO L225 Difference]: With dead ends: 376 [2024-11-27 19:51:46,556 INFO L226 Difference]: Without dead ends: 368 [2024-11-27 19:51:46,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:51:46,557 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 216 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:46,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 107 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:51:46,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-27 19:51:46,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 324. [2024-11-27 19:51:46,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 273 states have (on average 1.4322344322344323) internal successors, (391), 310 states have internal predecessors, (391), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 19:51:46,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 413 transitions. [2024-11-27 19:51:46,578 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 413 transitions. Word has length 45 [2024-11-27 19:51:46,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:46,579 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 413 transitions. [2024-11-27 19:51:46,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 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) [2024-11-27 19:51:46,579 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 413 transitions. [2024-11-27 19:51:46,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-27 19:51:46,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:46,580 INFO L218 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:46,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 19:51:46,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:46,784 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:46,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:46,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1795523083, now seen corresponding path program 1 times [2024-11-27 19:51:46,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:46,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838409035] [2024-11-27 19:51:46,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:46,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:46,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:46,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [533437154] [2024-11-27 19:51:46,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:46,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:46,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:46,814 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:46,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 19:51:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:46,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 19:51:46,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:47,078 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:47,078 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:47,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:47,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838409035] [2024-11-27 19:51:47,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:47,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533437154] [2024-11-27 19:51:47,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533437154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:47,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:47,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 19:51:47,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894791089] [2024-11-27 19:51:47,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:47,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:51:47,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:47,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:51:47,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:51:47,080 INFO L87 Difference]: Start difference. First operand 324 states and 413 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 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) [2024-11-27 19:51:47,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:47,580 INFO L93 Difference]: Finished difference Result 349 states and 445 transitions. [2024-11-27 19:51:47,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 19:51:47,580 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 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 46 [2024-11-27 19:51:47,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:47,582 INFO L225 Difference]: With dead ends: 349 [2024-11-27 19:51:47,582 INFO L226 Difference]: Without dead ends: 348 [2024-11-27 19:51:47,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:51:47,584 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 381 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:47,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 79 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:51:47,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-27 19:51:47,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 324. [2024-11-27 19:51:47,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 273 states have (on average 1.424908424908425) internal successors, (389), 310 states have internal predecessors, (389), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 19:51:47,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 411 transitions. [2024-11-27 19:51:47,613 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 411 transitions. Word has length 46 [2024-11-27 19:51:47,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:47,613 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 411 transitions. [2024-11-27 19:51:47,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 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) [2024-11-27 19:51:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 411 transitions. [2024-11-27 19:51:47,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-27 19:51:47,614 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:47,614 INFO L218 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] [2024-11-27 19:51:47,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:47,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 19:51:47,815 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:47,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:47,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1333272026, now seen corresponding path program 1 times [2024-11-27 19:51:47,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:47,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698772962] [2024-11-27 19:51:47,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:47,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:47,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:47,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1355338857] [2024-11-27 19:51:47,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:47,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:47,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:47,843 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:47,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 19:51:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:47,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 19:51:47,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:48,079 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:48,079 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 19:51:48,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:48,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698772962] [2024-11-27 19:51:48,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:48,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355338857] [2024-11-27 19:51:48,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355338857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:48,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:48,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-27 19:51:48,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108727192] [2024-11-27 19:51:48,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:48,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:51:48,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:48,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:51:48,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-27 19:51:48,081 INFO L87 Difference]: Start difference. First operand 324 states and 411 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 19:51:48,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:48,557 INFO L93 Difference]: Finished difference Result 355 states and 448 transitions. [2024-11-27 19:51:48,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 19:51:48,558 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2024-11-27 19:51:48,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:48,559 INFO L225 Difference]: With dead ends: 355 [2024-11-27 19:51:48,559 INFO L226 Difference]: Without dead ends: 353 [2024-11-27 19:51:48,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:51:48,560 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 172 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:48,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 281 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:51:48,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2024-11-27 19:51:48,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 342. [2024-11-27 19:51:48,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 290 states have (on average 1.4137931034482758) internal successors, (410), 327 states have internal predecessors, (410), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:51:48,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 434 transitions. [2024-11-27 19:51:48,582 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 434 transitions. Word has length 46 [2024-11-27 19:51:48,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:48,582 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 434 transitions. [2024-11-27 19:51:48,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 19:51:48,582 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 434 transitions. [2024-11-27 19:51:48,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-27 19:51:48,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:48,583 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:48,592 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 19:51:48,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-27 19:51:48,787 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:48,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:48,788 INFO L85 PathProgramCache]: Analyzing trace with hash -173359135, now seen corresponding path program 1 times [2024-11-27 19:51:48,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:48,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259365040] [2024-11-27 19:51:48,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:48,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:48,890 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:48,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:48,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259365040] [2024-11-27 19:51:48,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259365040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:48,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:48,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:48,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026751006] [2024-11-27 19:51:48,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:48,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:48,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:48,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:48,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:48,892 INFO L87 Difference]: Start difference. First operand 342 states and 434 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-11-27 19:51:49,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:49,309 INFO L93 Difference]: Finished difference Result 365 states and 454 transitions. [2024-11-27 19:51:49,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:49,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 47 [2024-11-27 19:51:49,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:49,311 INFO L225 Difference]: With dead ends: 365 [2024-11-27 19:51:49,311 INFO L226 Difference]: Without dead ends: 364 [2024-11-27 19:51:49,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:49,312 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 30 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:49,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 210 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:51:49,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-27 19:51:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 353. [2024-11-27 19:51:49,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 301 states have (on average 1.415282392026578) internal successors, (426), 338 states have internal predecessors, (426), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 19:51:49,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 450 transitions. [2024-11-27 19:51:49,335 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 450 transitions. Word has length 47 [2024-11-27 19:51:49,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:49,335 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 450 transitions. [2024-11-27 19:51:49,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-11-27 19:51:49,336 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 450 transitions. [2024-11-27 19:51:49,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-27 19:51:49,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:49,336 INFO L218 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, 1] [2024-11-27 19:51:49,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 19:51:49,337 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:49,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:49,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1041131226, now seen corresponding path program 1 times [2024-11-27 19:51:49,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:49,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379266658] [2024-11-27 19:51:49,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:49,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:49,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176333130] [2024-11-27 19:51:49,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:49,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:49,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:49,358 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:49,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 19:51:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:49,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 19:51:49,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:49,647 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:49,648 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:49,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:49,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379266658] [2024-11-27 19:51:49,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:49,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176333130] [2024-11-27 19:51:49,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176333130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:49,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:51:49,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 19:51:49,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298445279] [2024-11-27 19:51:49,953 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:49,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:51:49,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:49,954 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:51:49,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:51:49,955 INFO L87 Difference]: Start difference. First operand 353 states and 450 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:51:50,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:50,425 INFO L93 Difference]: Finished difference Result 384 states and 487 transitions. [2024-11-27 19:51:50,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 19:51:50,426 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 47 [2024-11-27 19:51:50,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:50,427 INFO L225 Difference]: With dead ends: 384 [2024-11-27 19:51:50,428 INFO L226 Difference]: Without dead ends: 382 [2024-11-27 19:51:50,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-11-27 19:51:50,428 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 168 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:50,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 259 Invalid, 334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:51:50,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-27 19:51:50,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 372. [2024-11-27 19:51:50,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 319 states have (on average 1.4075235109717867) internal successors, (449), 356 states have internal predecessors, (449), 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) [2024-11-27 19:51:50,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 475 transitions. [2024-11-27 19:51:50,463 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 475 transitions. Word has length 47 [2024-11-27 19:51:50,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:50,463 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 475 transitions. [2024-11-27 19:51:50,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:51:50,463 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 475 transitions. [2024-11-27 19:51:50,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-27 19:51:50,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:50,464 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:50,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 19:51:50,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 19:51:50,665 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:50,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:50,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1618240211, now seen corresponding path program 1 times [2024-11-27 19:51:50,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:50,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216053212] [2024-11-27 19:51:50,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:50,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:50,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:50,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1293210242] [2024-11-27 19:51:50,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:50,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:50,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:50,689 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:50,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 19:51:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:50,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 19:51:50,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:51,331 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:51,332 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:51,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:51,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216053212] [2024-11-27 19:51:51,780 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:51,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293210242] [2024-11-27 19:51:51,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293210242] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:51,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:51:51,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 19:51:51,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460561163] [2024-11-27 19:51:51,780 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:51,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 19:51:51,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:51,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 19:51:51,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:51:51,783 INFO L87 Difference]: Start difference. First operand 372 states and 475 transitions. Second operand has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2024-11-27 19:51:52,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:52,540 INFO L93 Difference]: Finished difference Result 597 states and 761 transitions. [2024-11-27 19:51:52,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 19:51:52,540 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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 47 [2024-11-27 19:51:52,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:52,542 INFO L225 Difference]: With dead ends: 597 [2024-11-27 19:51:52,542 INFO L226 Difference]: Without dead ends: 373 [2024-11-27 19:51:52,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-27 19:51:52,544 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 264 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:52,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 253 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 19:51:52,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2024-11-27 19:51:52,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 366. [2024-11-27 19:51:52,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 313 states have (on average 1.4057507987220448) internal successors, (440), 350 states have internal predecessors, (440), 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) [2024-11-27 19:51:52,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 466 transitions. [2024-11-27 19:51:52,570 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 466 transitions. Word has length 47 [2024-11-27 19:51:52,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:52,571 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 466 transitions. [2024-11-27 19:51:52,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2024-11-27 19:51:52,571 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 466 transitions. [2024-11-27 19:51:52,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-27 19:51:52,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:52,571 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:52,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:52,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 19:51:52,772 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:52,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:52,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1079165747, now seen corresponding path program 1 times [2024-11-27 19:51:52,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:52,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49520409] [2024-11-27 19:51:52,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:52,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:52,862 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 19:51:52,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:52,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49520409] [2024-11-27 19:51:52,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49520409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:52,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:52,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:51:52,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359775600] [2024-11-27 19:51:52,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:52,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:51:52,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:52,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:51:52,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:52,864 INFO L87 Difference]: Start difference. First operand 366 states and 466 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2024-11-27 19:51:53,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:53,094 INFO L93 Difference]: Finished difference Result 378 states and 468 transitions. [2024-11-27 19:51:53,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:51:53,094 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), 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 48 [2024-11-27 19:51:53,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:53,095 INFO L225 Difference]: With dead ends: 378 [2024-11-27 19:51:53,095 INFO L226 Difference]: Without dead ends: 377 [2024-11-27 19:51:53,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:51:53,096 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 29 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:53,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 194 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:51:53,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-27 19:51:53,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 367. [2024-11-27 19:51:53,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 314 states have (on average 1.4012738853503184) internal successors, (440), 351 states have internal predecessors, (440), 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) [2024-11-27 19:51:53,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 466 transitions. [2024-11-27 19:51:53,118 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 466 transitions. Word has length 48 [2024-11-27 19:51:53,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:53,118 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 466 transitions. [2024-11-27 19:51:53,119 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), 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) [2024-11-27 19:51:53,119 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 466 transitions. [2024-11-27 19:51:53,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-27 19:51:53,119 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:53,119 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:53,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-27 19:51:53,119 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:53,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:53,120 INFO L85 PathProgramCache]: Analyzing trace with hash -2084670305, now seen corresponding path program 1 times [2024-11-27 19:51:53,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:53,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255151980] [2024-11-27 19:51:53,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:53,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:53,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1969603782] [2024-11-27 19:51:53,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:53,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:53,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:53,136 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:53,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 19:51:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:53,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 19:51:53,200 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:53,635 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:53,635 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:54,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:54,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255151980] [2024-11-27 19:51:54,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:54,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1969603782] [2024-11-27 19:51:54,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1969603782] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:54,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:51:54,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 19:51:54,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035453351] [2024-11-27 19:51:54,280 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:54,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 19:51:54,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:54,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 19:51:54,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:51:54,282 INFO L87 Difference]: Start difference. First operand 367 states and 466 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) [2024-11-27 19:51:54,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:54,944 INFO L93 Difference]: Finished difference Result 389 states and 492 transitions. [2024-11-27 19:51:54,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 19:51:54,945 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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 48 [2024-11-27 19:51:54,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:54,946 INFO L225 Difference]: With dead ends: 389 [2024-11-27 19:51:54,947 INFO L226 Difference]: Without dead ends: 388 [2024-11-27 19:51:54,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:51:54,947 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 143 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:54,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 271 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:51:54,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-27 19:51:54,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 373. [2024-11-27 19:51:54,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 320 states have (on average 1.39375) internal successors, (446), 357 states have internal predecessors, (446), 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) [2024-11-27 19:51:54,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 472 transitions. [2024-11-27 19:51:54,972 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 472 transitions. Word has length 48 [2024-11-27 19:51:54,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:54,972 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 472 transitions. [2024-11-27 19:51:54,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) [2024-11-27 19:51:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 472 transitions. [2024-11-27 19:51:54,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-27 19:51:54,973 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:54,973 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:54,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:55,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 19:51:55,178 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:55,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:55,178 INFO L85 PathProgramCache]: Analyzing trace with hash 905600258, now seen corresponding path program 1 times [2024-11-27 19:51:55,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:55,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121023307] [2024-11-27 19:51:55,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:55,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:55,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [653563762] [2024-11-27 19:51:55,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:55,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:55,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:55,202 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:55,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 19:51:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:55,251 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 19:51:55,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:55,434 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:55,434 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:56,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:56,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121023307] [2024-11-27 19:51:56,404 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:56,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653563762] [2024-11-27 19:51:56,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653563762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:51:56,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:51:56,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 19:51:56,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979431810] [2024-11-27 19:51:56,404 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:56,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 19:51:56,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:56,405 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 19:51:56,405 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=117, Unknown=1, NotChecked=0, Total=156 [2024-11-27 19:51:56,405 INFO L87 Difference]: Start difference. First operand 373 states and 472 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:51:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:56,909 INFO L93 Difference]: Finished difference Result 428 states and 560 transitions. [2024-11-27 19:51:56,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 19:51:56,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 49 [2024-11-27 19:51:56,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:56,911 INFO L225 Difference]: With dead ends: 428 [2024-11-27 19:51:56,911 INFO L226 Difference]: Without dead ends: 418 [2024-11-27 19:51:56,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=171, Unknown=1, NotChecked=0, Total=240 [2024-11-27 19:51:56,912 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 215 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:56,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 96 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 19:51:56,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-27 19:51:56,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 356. [2024-11-27 19:51:56,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 313 states have (on average 1.3322683706070289) internal successors, (417), 340 states have internal predecessors, (417), 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) [2024-11-27 19:51:56,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 443 transitions. [2024-11-27 19:51:56,940 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 443 transitions. Word has length 49 [2024-11-27 19:51:56,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:56,941 INFO L471 AbstractCegarLoop]: Abstraction has 356 states and 443 transitions. [2024-11-27 19:51:56,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:51:56,941 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 443 transitions. [2024-11-27 19:51:56,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-27 19:51:56,942 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:56,942 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:56,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-27 19:51:57,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 19:51:57,143 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:51:57,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:57,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1991163025, now seen corresponding path program 1 times [2024-11-27 19:51:57,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:57,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539560386] [2024-11-27 19:51:57,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:57,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:51:57,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1598613156] [2024-11-27 19:51:57,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:57,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:51:57,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:57,166 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:51:57,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 19:51:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:57,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 19:51:57,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:51:57,661 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:57,661 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:51:58,540 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:51:58,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:58,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539560386] [2024-11-27 19:51:58,541 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:51:58,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598613156] [2024-11-27 19:51:58,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598613156] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:51:58,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:51:58,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-11-27 19:51:58,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008664326] [2024-11-27 19:51:58,542 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:51:58,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 19:51:58,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:58,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 19:51:58,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:51:58,543 INFO L87 Difference]: Start difference. First operand 356 states and 443 transitions. Second operand has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 14 states have internal predecessors, (68), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 19:52:06,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:06,933 INFO L93 Difference]: Finished difference Result 901 states and 1210 transitions. [2024-11-27 19:52:06,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-27 19:52:06,934 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 14 states have internal predecessors, (68), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 50 [2024-11-27 19:52:06,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:06,936 INFO L225 Difference]: With dead ends: 901 [2024-11-27 19:52:06,936 INFO L226 Difference]: Without dead ends: 866 [2024-11-27 19:52:06,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=280, Invalid=776, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 19:52:06,937 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 632 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:06,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 166 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-27 19:52:06,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-27 19:52:06,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 666. [2024-11-27 19:52:06,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 615 states have (on average 1.351219512195122) internal successors, (831), 641 states have internal predecessors, (831), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 19:52:06,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 875 transitions. [2024-11-27 19:52:06,993 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 875 transitions. Word has length 50 [2024-11-27 19:52:06,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:06,993 INFO L471 AbstractCegarLoop]: Abstraction has 666 states and 875 transitions. [2024-11-27 19:52:06,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.533333333333333) internal successors, (68), 14 states have internal predecessors, (68), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 19:52:06,994 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 875 transitions. [2024-11-27 19:52:06,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 19:52:06,994 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:06,994 INFO L218 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:07,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-27 19:52:07,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:07,199 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:07,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:07,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1596511580, now seen corresponding path program 1 times [2024-11-27 19:52:07,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:07,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784789122] [2024-11-27 19:52:07,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:07,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:52:07,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232875765] [2024-11-27 19:52:07,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:07,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:07,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:07,230 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:07,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 19:52:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:07,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 19:52:07,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:52:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:52:07,584 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:52:07,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:07,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784789122] [2024-11-27 19:52:07,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:52:07,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232875765] [2024-11-27 19:52:07,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232875765] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:52:07,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:52:07,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 19:52:07,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62109781] [2024-11-27 19:52:07,860 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:52:07,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 19:52:07,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:07,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 19:52:07,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-27 19:52:07,861 INFO L87 Difference]: Start difference. First operand 666 states and 875 transitions. Second operand has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:52:08,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:08,296 INFO L93 Difference]: Finished difference Result 766 states and 1018 transitions. [2024-11-27 19:52:08,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 19:52:08,296 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 51 [2024-11-27 19:52:08,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:08,298 INFO L225 Difference]: With dead ends: 766 [2024-11-27 19:52:08,298 INFO L226 Difference]: Without dead ends: 761 [2024-11-27 19:52:08,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:52:08,299 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 104 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:08,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 72 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:52:08,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-27 19:52:08,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 636. [2024-11-27 19:52:08,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 591 states have (on average 1.3096446700507614) internal successors, (774), 612 states have internal predecessors, (774), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 19:52:08,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 816 transitions. [2024-11-27 19:52:08,352 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 816 transitions. Word has length 51 [2024-11-27 19:52:08,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:08,353 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 816 transitions. [2024-11-27 19:52:08,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:52:08,353 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 816 transitions. [2024-11-27 19:52:08,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-27 19:52:08,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:08,354 INFO L218 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:08,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-27 19:52:08,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:08,558 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:08,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:08,558 INFO L85 PathProgramCache]: Analyzing trace with hash 2047748625, now seen corresponding path program 1 times [2024-11-27 19:52:08,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:08,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958654974] [2024-11-27 19:52:08,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:08,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:52:08,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205247051] [2024-11-27 19:52:08,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:08,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:08,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:08,578 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:08,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 19:52:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:08,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 19:52:08,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:52:08,993 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:52:08,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:52:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:52:10,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:10,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958654974] [2024-11-27 19:52:10,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:52:10,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205247051] [2024-11-27 19:52:10,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205247051] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:52:10,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:52:10,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-11-27 19:52:10,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137749155] [2024-11-27 19:52:10,613 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:52:10,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 19:52:10,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:10,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 19:52:10,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2024-11-27 19:52:10,614 INFO L87 Difference]: Start difference. First operand 636 states and 816 transitions. Second operand has 16 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 19:52:17,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:17,122 INFO L93 Difference]: Finished difference Result 750 states and 960 transitions. [2024-11-27 19:52:17,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 19:52:17,123 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 52 [2024-11-27 19:52:17,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:17,126 INFO L225 Difference]: With dead ends: 750 [2024-11-27 19:52:17,126 INFO L226 Difference]: Without dead ends: 749 [2024-11-27 19:52:17,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=204, Invalid=666, Unknown=0, NotChecked=0, Total=870 [2024-11-27 19:52:17,128 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 544 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 544 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:17,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [544 Valid, 180 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-27 19:52:17,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2024-11-27 19:52:17,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 663. [2024-11-27 19:52:17,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 617 states have (on average 1.299837925445705) internal successors, (802), 638 states have internal predecessors, (802), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 19:52:17,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 846 transitions. [2024-11-27 19:52:17,191 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 846 transitions. Word has length 52 [2024-11-27 19:52:17,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:17,191 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 846 transitions. [2024-11-27 19:52:17,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.8) internal successors, (72), 14 states have internal predecessors, (72), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-27 19:52:17,191 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 846 transitions. [2024-11-27 19:52:17,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-27 19:52:17,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:17,192 INFO L218 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:17,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-27 19:52:17,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:17,399 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:17,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:17,400 INFO L85 PathProgramCache]: Analyzing trace with hash -944302010, now seen corresponding path program 1 times [2024-11-27 19:52:17,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:17,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111313103] [2024-11-27 19:52:17,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:17,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:52:17,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1525269079] [2024-11-27 19:52:17,444 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:17,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:17,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:17,446 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:17,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 19:52:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:17,491 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 19:52:17,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:52:17,887 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:52:17,887 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:52:22,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:22,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111313103] [2024-11-27 19:52:22,519 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:52:22,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525269079] [2024-11-27 19:52:22,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525269079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:52:22,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:52:22,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 19:52:22,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224461744] [2024-11-27 19:52:22,520 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:52:22,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 19:52:22,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:22,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 19:52:22,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=176, Unknown=1, NotChecked=0, Total=240 [2024-11-27 19:52:22,521 INFO L87 Difference]: Start difference. First operand 663 states and 846 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:52:23,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:23,345 INFO L93 Difference]: Finished difference Result 731 states and 927 transitions. [2024-11-27 19:52:23,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:52:23,345 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2024-11-27 19:52:23,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:23,348 INFO L225 Difference]: With dead ends: 731 [2024-11-27 19:52:23,348 INFO L226 Difference]: Without dead ends: 727 [2024-11-27 19:52:23,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=150, Invalid=311, Unknown=1, NotChecked=0, Total=462 [2024-11-27 19:52:23,349 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 297 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:23,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 133 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 19:52:23,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-27 19:52:23,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 644. [2024-11-27 19:52:23,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 599 states have (on average 1.2721202003338898) internal successors, (762), 620 states have internal predecessors, (762), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 19:52:23,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 804 transitions. [2024-11-27 19:52:23,418 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 804 transitions. Word has length 53 [2024-11-27 19:52:23,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:23,418 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 804 transitions. [2024-11-27 19:52:23,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:52:23,418 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 804 transitions. [2024-11-27 19:52:23,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-27 19:52:23,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:23,420 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:23,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-27 19:52:23,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:23,622 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:23,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:23,622 INFO L85 PathProgramCache]: Analyzing trace with hash 791408819, now seen corresponding path program 1 times [2024-11-27 19:52:23,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:23,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399496312] [2024-11-27 19:52:23,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:23,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:52:23,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1238475520] [2024-11-27 19:52:23,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:23,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:23,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:23,654 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:23,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 19:52:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:23,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 19:52:23,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:52:24,459 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-27 19:52:24,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:52:24,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:24,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399496312] [2024-11-27 19:52:24,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:52:24,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238475520] [2024-11-27 19:52:24,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238475520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:52:24,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:52:24,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 19:52:24,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177234509] [2024-11-27 19:52:24,758 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:52:24,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:52:24,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:24,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:52:24,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-27 19:52:24,759 INFO L87 Difference]: Start difference. First operand 644 states and 804 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:52:26,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:26,152 INFO L93 Difference]: Finished difference Result 666 states and 830 transitions. [2024-11-27 19:52:26,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:52:26,152 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2024-11-27 19:52:26,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:26,154 INFO L225 Difference]: With dead ends: 666 [2024-11-27 19:52:26,154 INFO L226 Difference]: Without dead ends: 665 [2024-11-27 19:52:26,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2024-11-27 19:52:26,154 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 276 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:26,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 174 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 19:52:26,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-27 19:52:26,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 650. [2024-11-27 19:52:26,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 605 states have (on average 1.2694214876033059) internal successors, (768), 626 states have internal predecessors, (768), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 19:52:26,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 810 transitions. [2024-11-27 19:52:26,216 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 810 transitions. Word has length 54 [2024-11-27 19:52:26,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:26,217 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 810 transitions. [2024-11-27 19:52:26,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 11 states have internal predecessors, (43), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-27 19:52:26,217 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 810 transitions. [2024-11-27 19:52:26,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-27 19:52:26,218 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:26,218 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:26,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-27 19:52:26,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:26,419 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:26,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:26,419 INFO L85 PathProgramCache]: Analyzing trace with hash -674341970, now seen corresponding path program 1 times [2024-11-27 19:52:26,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:26,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752171250] [2024-11-27 19:52:26,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:26,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:52:26,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [155593736] [2024-11-27 19:52:26,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:26,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:26,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:26,442 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:26,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 19:52:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:26,490 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 19:52:26,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:52:27,242 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 19:52:27,243 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:52:28,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:28,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752171250] [2024-11-27 19:52:28,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:52:28,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155593736] [2024-11-27 19:52:28,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155593736] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:52:28,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:52:28,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 19:52:28,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172986190] [2024-11-27 19:52:28,745 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:52:28,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 19:52:28,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:28,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 19:52:28,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:52:28,746 INFO L87 Difference]: Start difference. First operand 650 states and 810 transitions. Second operand has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 19:52:30,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:30,581 INFO L93 Difference]: Finished difference Result 714 states and 890 transitions. [2024-11-27 19:52:30,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 19:52:30,581 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 60 [2024-11-27 19:52:30,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:30,583 INFO L225 Difference]: With dead ends: 714 [2024-11-27 19:52:30,583 INFO L226 Difference]: Without dead ends: 713 [2024-11-27 19:52:30,584 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=146, Invalid=556, Unknown=0, NotChecked=0, Total=702 [2024-11-27 19:52:30,584 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 177 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 982 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:30,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 212 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 982 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 19:52:30,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-27 19:52:30,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 672. [2024-11-27 19:52:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 626 states have (on average 1.2699680511182108) internal successors, (795), 647 states have internal predecessors, (795), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 19:52:30,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 839 transitions. [2024-11-27 19:52:30,647 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 839 transitions. Word has length 60 [2024-11-27 19:52:30,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:30,648 INFO L471 AbstractCegarLoop]: Abstraction has 672 states and 839 transitions. [2024-11-27 19:52:30,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 19:52:30,648 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 839 transitions. [2024-11-27 19:52:30,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-27 19:52:30,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:30,649 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:30,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-27 19:52:30,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:30,849 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:30,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:30,850 INFO L85 PathProgramCache]: Analyzing trace with hash 985358196, now seen corresponding path program 1 times [2024-11-27 19:52:30,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:30,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642979058] [2024-11-27 19:52:30,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:30,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:52:30,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073636315] [2024-11-27 19:52:30,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:30,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:30,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:30,883 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:30,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-27 19:52:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:30,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 19:52:30,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:52:31,930 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 19:52:31,930 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:52:33,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:33,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642979058] [2024-11-27 19:52:33,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:52:33,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073636315] [2024-11-27 19:52:33,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073636315] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:52:33,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:52:33,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 19:52:33,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188273879] [2024-11-27 19:52:33,435 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:52:33,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 19:52:33,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:33,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 19:52:33,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2024-11-27 19:52:33,438 INFO L87 Difference]: Start difference. First operand 672 states and 839 transitions. Second operand has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 19:52:34,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:34,851 INFO L93 Difference]: Finished difference Result 885 states and 1121 transitions. [2024-11-27 19:52:34,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 19:52:34,852 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 61 [2024-11-27 19:52:34,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:34,854 INFO L225 Difference]: With dead ends: 885 [2024-11-27 19:52:34,854 INFO L226 Difference]: Without dead ends: 879 [2024-11-27 19:52:34,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 71 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=247, Invalid=623, Unknown=0, NotChecked=0, Total=870 [2024-11-27 19:52:34,856 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 301 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:34,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 130 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 19:52:34,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2024-11-27 19:52:34,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 773. [2024-11-27 19:52:34,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 721 states have (on average 1.288488210818308) internal successors, (929), 742 states have internal predecessors, (929), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-27 19:52:34,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 985 transitions. [2024-11-27 19:52:34,950 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 985 transitions. Word has length 61 [2024-11-27 19:52:34,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:34,950 INFO L471 AbstractCegarLoop]: Abstraction has 773 states and 985 transitions. [2024-11-27 19:52:34,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.4615384615384617) internal successors, (45), 14 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 19:52:34,951 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 985 transitions. [2024-11-27 19:52:34,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-27 19:52:34,951 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:34,952 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:34,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-27 19:52:35,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:35,152 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:35,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:35,153 INFO L85 PathProgramCache]: Analyzing trace with hash 586334021, now seen corresponding path program 1 times [2024-11-27 19:52:35,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:35,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853313600] [2024-11-27 19:52:35,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:35,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:35,248 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 19:52:35,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:35,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853313600] [2024-11-27 19:52:35,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853313600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:52:35,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398658454] [2024-11-27 19:52:35,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:35,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:35,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:35,254 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:35,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-27 19:52:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:35,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 19:52:35,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:52:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 19:52:35,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:52:35,439 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 19:52:35,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398658454] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:52:35,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 19:52:35,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 19:52:35,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525156902] [2024-11-27 19:52:35,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 19:52:35,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 19:52:35,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:35,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 19:52:35,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:52:35,441 INFO L87 Difference]: Start difference. First operand 773 states and 985 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-27 19:52:35,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:35,792 INFO L93 Difference]: Finished difference Result 1486 states and 1960 transitions. [2024-11-27 19:52:35,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 19:52:35,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 61 [2024-11-27 19:52:35,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:35,795 INFO L225 Difference]: With dead ends: 1486 [2024-11-27 19:52:35,795 INFO L226 Difference]: Without dead ends: 1485 [2024-11-27 19:52:35,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 19:52:35,796 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 181 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:35,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 281 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:52:35,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2024-11-27 19:52:35,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1458. [2024-11-27 19:52:35,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1387 states have (on average 1.3338139870223504) internal successors, (1850), 1408 states have internal predecessors, (1850), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-27 19:52:35,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1944 transitions. [2024-11-27 19:52:35,907 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1944 transitions. Word has length 61 [2024-11-27 19:52:35,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:35,907 INFO L471 AbstractCegarLoop]: Abstraction has 1458 states and 1944 transitions. [2024-11-27 19:52:35,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 7 states have internal predecessors, (92), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-27 19:52:35,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1944 transitions. [2024-11-27 19:52:35,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-27 19:52:35,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:35,908 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:35,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-27 19:52:36,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:36,109 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:36,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:36,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1990742916, now seen corresponding path program 1 times [2024-11-27 19:52:36,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:36,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447563387] [2024-11-27 19:52:36,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:36,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:36,628 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 19:52:36,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:36,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447563387] [2024-11-27 19:52:36,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447563387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:36,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:36,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-27 19:52:36,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71161859] [2024-11-27 19:52:36,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:36,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 19:52:36,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:36,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 19:52:36,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-27 19:52:36,632 INFO L87 Difference]: Start difference. First operand 1458 states and 1944 transitions. Second operand has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 19:52:37,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:37,874 INFO L93 Difference]: Finished difference Result 2075 states and 2846 transitions. [2024-11-27 19:52:37,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 19:52:37,875 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 63 [2024-11-27 19:52:37,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:37,879 INFO L225 Difference]: With dead ends: 2075 [2024-11-27 19:52:37,880 INFO L226 Difference]: Without dead ends: 2073 [2024-11-27 19:52:37,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:52:37,880 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 296 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:37,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 184 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 19:52:37,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2024-11-27 19:52:38,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 1974. [2024-11-27 19:52:38,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1886 states have (on average 1.3515376458112407) internal successors, (2549), 1907 states have internal predecessors, (2549), 64 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-27 19:52:38,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2677 transitions. [2024-11-27 19:52:38,009 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2677 transitions. Word has length 63 [2024-11-27 19:52:38,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:38,009 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 2677 transitions. [2024-11-27 19:52:38,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.4) internal successors, (44), 11 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 19:52:38,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2677 transitions. [2024-11-27 19:52:38,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 19:52:38,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:38,011 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:38,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-27 19:52:38,011 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:38,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:38,012 INFO L85 PathProgramCache]: Analyzing trace with hash 479749697, now seen corresponding path program 1 times [2024-11-27 19:52:38,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:38,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697517061] [2024-11-27 19:52:38,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:38,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 19:52:38,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:38,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697517061] [2024-11-27 19:52:38,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697517061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:38,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:38,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:52:38,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370907494] [2024-11-27 19:52:38,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:38,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:52:38,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:38,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:52:38,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:52:38,153 INFO L87 Difference]: Start difference. First operand 1974 states and 2677 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-27 19:52:38,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:38,519 INFO L93 Difference]: Finished difference Result 3730 states and 5138 transitions. [2024-11-27 19:52:38,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:52:38,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 64 [2024-11-27 19:52:38,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:38,528 INFO L225 Difference]: With dead ends: 3730 [2024-11-27 19:52:38,528 INFO L226 Difference]: Without dead ends: 2117 [2024-11-27 19:52:38,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:52:38,532 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 5 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:38,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 114 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 19:52:38,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2024-11-27 19:52:38,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 2077. [2024-11-27 19:52:38,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1974 states have (on average 1.3419452887537995) internal successors, (2649), 1995 states have internal predecessors, (2649), 79 states have call successors, (79), 2 states have call predecessors, (79), 2 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-27 19:52:38,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2807 transitions. [2024-11-27 19:52:38,762 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2807 transitions. Word has length 64 [2024-11-27 19:52:38,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:38,762 INFO L471 AbstractCegarLoop]: Abstraction has 2077 states and 2807 transitions. [2024-11-27 19:52:38,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-27 19:52:38,763 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2807 transitions. [2024-11-27 19:52:38,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-27 19:52:38,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:38,764 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:38,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-27 19:52:38,765 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:38,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:38,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1786457393, now seen corresponding path program 1 times [2024-11-27 19:52:38,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:38,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363922180] [2024-11-27 19:52:38,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:38,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 19:52:38,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:38,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363922180] [2024-11-27 19:52:38,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363922180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:38,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:38,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 19:52:38,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295146420] [2024-11-27 19:52:38,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:38,938 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:52:38,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:38,939 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:52:38,939 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:52:38,939 INFO L87 Difference]: Start difference. First operand 2077 states and 2807 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-27 19:52:39,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:39,286 INFO L93 Difference]: Finished difference Result 3762 states and 5156 transitions. [2024-11-27 19:52:39,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:52:39,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 64 [2024-11-27 19:52:39,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:39,295 INFO L225 Difference]: With dead ends: 3762 [2024-11-27 19:52:39,295 INFO L226 Difference]: Without dead ends: 2128 [2024-11-27 19:52:39,298 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:52:39,298 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 10 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:39,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 114 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 19:52:39,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2024-11-27 19:52:39,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2042. [2024-11-27 19:52:39,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2042 states, 1934 states have (on average 1.3459152016546019) internal successors, (2603), 1955 states have internal predecessors, (2603), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-27 19:52:39,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2042 states to 2042 states and 2771 transitions. [2024-11-27 19:52:39,516 INFO L78 Accepts]: Start accepts. Automaton has 2042 states and 2771 transitions. Word has length 64 [2024-11-27 19:52:39,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:39,517 INFO L471 AbstractCegarLoop]: Abstraction has 2042 states and 2771 transitions. [2024-11-27 19:52:39,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-27 19:52:39,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2042 states and 2771 transitions. [2024-11-27 19:52:39,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-27 19:52:39,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:39,518 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:39,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-27 19:52:39,518 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:39,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:39,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1488284901, now seen corresponding path program 1 times [2024-11-27 19:52:39,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:39,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819111066] [2024-11-27 19:52:39,519 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:39,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 19:52:39,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:39,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819111066] [2024-11-27 19:52:39,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819111066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:52:39,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:52:39,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 19:52:39,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000462960] [2024-11-27 19:52:39,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:52:39,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 19:52:39,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:39,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 19:52:39,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:52:39,758 INFO L87 Difference]: Start difference. First operand 2042 states and 2771 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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) [2024-11-27 19:52:40,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:40,264 INFO L93 Difference]: Finished difference Result 3830 states and 5244 transitions. [2024-11-27 19:52:40,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 19:52:40,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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 65 [2024-11-27 19:52:40,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:40,272 INFO L225 Difference]: With dead ends: 3830 [2024-11-27 19:52:40,272 INFO L226 Difference]: Without dead ends: 2117 [2024-11-27 19:52:40,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 19:52:40,275 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 19 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:40,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 147 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 19:52:40,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2117 states. [2024-11-27 19:52:40,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2117 to 2002. [2024-11-27 19:52:40,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2002 states, 1896 states have (on average 1.3391350210970465) internal successors, (2539), 1917 states have internal predecessors, (2539), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-27 19:52:40,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2002 states to 2002 states and 2703 transitions. [2024-11-27 19:52:40,465 INFO L78 Accepts]: Start accepts. Automaton has 2002 states and 2703 transitions. Word has length 65 [2024-11-27 19:52:40,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:40,466 INFO L471 AbstractCegarLoop]: Abstraction has 2002 states and 2703 transitions. [2024-11-27 19:52:40,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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) [2024-11-27 19:52:40,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2002 states and 2703 transitions. [2024-11-27 19:52:40,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-27 19:52:40,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:40,467 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 19:52:40,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-27 19:52:40,467 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:40,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:40,468 INFO L85 PathProgramCache]: Analyzing trace with hash -513953655, now seen corresponding path program 2 times [2024-11-27 19:52:40,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:40,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949425094] [2024-11-27 19:52:40,470 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:52:40,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:40,498 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:52:40,499 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 19:52:40,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1967835452] [2024-11-27 19:52:40,500 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:52:40,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:40,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:40,503 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:40,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-27 19:52:40,574 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:52:40,574 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:52:40,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-27 19:52:40,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:52:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 28 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 19:52:42,737 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:52:45,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:52:45,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949425094] [2024-11-27 19:52:45,654 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:52:45,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967835452] [2024-11-27 19:52:45,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967835452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:52:45,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:52:45,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-11-27 19:52:45,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771215757] [2024-11-27 19:52:45,654 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:52:45,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 19:52:45,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:52:45,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 19:52:45,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=610, Unknown=0, NotChecked=0, Total=756 [2024-11-27 19:52:45,655 INFO L87 Difference]: Start difference. First operand 2002 states and 2703 transitions. Second operand has 21 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 19:52:48,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:52:48,314 INFO L93 Difference]: Finished difference Result 2031 states and 2739 transitions. [2024-11-27 19:52:48,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 19:52:48,314 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 65 [2024-11-27 19:52:48,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:52:48,326 INFO L225 Difference]: With dead ends: 2031 [2024-11-27 19:52:48,327 INFO L226 Difference]: Without dead ends: 2029 [2024-11-27 19:52:48,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 19:52:48,328 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 134 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 1693 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:52:48,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 362 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1693 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 19:52:48,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2024-11-27 19:52:48,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 2020. [2024-11-27 19:52:48,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 1913 states have (on average 1.338212232096184) internal successors, (2560), 1934 states have internal predecessors, (2560), 83 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-27 19:52:48,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2726 transitions. [2024-11-27 19:52:48,465 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2726 transitions. Word has length 65 [2024-11-27 19:52:48,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:52:48,466 INFO L471 AbstractCegarLoop]: Abstraction has 2020 states and 2726 transitions. [2024-11-27 19:52:48,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.45) internal successors, (49), 19 states have internal predecessors, (49), 4 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 19:52:48,466 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2726 transitions. [2024-11-27 19:52:48,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-27 19:52:48,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:52:48,467 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:52:48,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-27 19:52:48,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:48,668 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:52:48,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:52:48,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1142314988, now seen corresponding path program 1 times [2024-11-27 19:52:48,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:52:48,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855610393] [2024-11-27 19:52:48,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:48,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:52:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:52:48,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2119568905] [2024-11-27 19:52:48,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:52:48,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:52:48,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:52:48,697 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:52:48,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-27 19:52:48,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:52:48,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 19:52:48,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:53:02,113 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 19 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 19:53:02,113 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:53:03,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:03,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855610393] [2024-11-27 19:53:03,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:53:03,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119568905] [2024-11-27 19:53:03,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119568905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:53:03,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:53:03,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-27 19:53:03,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343933506] [2024-11-27 19:53:03,199 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:53:03,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 19:53:03,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:03,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 19:53:03,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=382, Unknown=1, NotChecked=0, Total=462 [2024-11-27 19:53:03,200 INFO L87 Difference]: Start difference. First operand 2020 states and 2726 transitions. Second operand has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 19:53:08,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 19:53:12,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 19:53:17,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 19:53:22,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 19:53:26,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 19:53:28,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 19:53:38,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 19:53:47,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 19:53:48,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:48,580 INFO L93 Difference]: Finished difference Result 2055 states and 2762 transitions. [2024-11-27 19:53:48,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 19:53:48,581 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 66 [2024-11-27 19:53:48,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:48,587 INFO L225 Difference]: With dead ends: 2055 [2024-11-27 19:53:48,588 INFO L226 Difference]: Without dead ends: 2054 [2024-11-27 19:53:48,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=145, Invalid=665, Unknown=2, NotChecked=0, Total=812 [2024-11-27 19:53:48,589 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 186 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 1389 mSolverCounterSat, 9 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1389 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:48,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 245 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1389 Invalid, 6 Unknown, 0 Unchecked, 37.2s Time] [2024-11-27 19:53:48,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2054 states. [2024-11-27 19:53:48,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2054 to 2020. [2024-11-27 19:53:48,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2020 states, 1913 states have (on average 1.3371667537898588) internal successors, (2558), 1934 states have internal predecessors, (2558), 83 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-27 19:53:48,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2020 states to 2020 states and 2724 transitions. [2024-11-27 19:53:48,785 INFO L78 Accepts]: Start accepts. Automaton has 2020 states and 2724 transitions. Word has length 66 [2024-11-27 19:53:48,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:48,786 INFO L471 AbstractCegarLoop]: Abstraction has 2020 states and 2724 transitions. [2024-11-27 19:53:48,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 16 states have internal predecessors, (50), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 19:53:48,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2020 states and 2724 transitions. [2024-11-27 19:53:48,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 19:53:48,787 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:48,787 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:48,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-27 19:53:48,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:53:48,991 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:53:48,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:48,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1939013235, now seen corresponding path program 1 times [2024-11-27 19:53:48,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:48,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733640628] [2024-11-27 19:53:48,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:48,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:53:49,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [830109651] [2024-11-27 19:53:49,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:49,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:53:49,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:53:49,013 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:53:49,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-27 19:53:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:49,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 19:53:49,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:53:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 16 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 19:53:49,340 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:53:49,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:53:49,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733640628] [2024-11-27 19:53:49,513 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:53:49,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830109651] [2024-11-27 19:53:49,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830109651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:53:49,513 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:53:49,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 19:53:49,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413988434] [2024-11-27 19:53:49,514 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:53:49,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 19:53:49,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:53:49,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 19:53:49,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-27 19:53:49,515 INFO L87 Difference]: Start difference. First operand 2020 states and 2724 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 19:53:50,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:53:50,201 INFO L93 Difference]: Finished difference Result 2195 states and 2954 transitions. [2024-11-27 19:53:50,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 19:53:50,202 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 67 [2024-11-27 19:53:50,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:53:50,209 INFO L225 Difference]: With dead ends: 2195 [2024-11-27 19:53:50,209 INFO L226 Difference]: Without dead ends: 2194 [2024-11-27 19:53:50,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-27 19:53:50,211 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 180 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 19:53:50,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 282 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 19:53:50,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2024-11-27 19:53:50,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2077. [2024-11-27 19:53:50,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2077 states, 1967 states have (on average 1.3324860193187595) internal successors, (2621), 1988 states have internal predecessors, (2621), 86 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-27 19:53:50,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2077 states to 2077 states and 2793 transitions. [2024-11-27 19:53:50,390 INFO L78 Accepts]: Start accepts. Automaton has 2077 states and 2793 transitions. Word has length 67 [2024-11-27 19:53:50,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:53:50,391 INFO L471 AbstractCegarLoop]: Abstraction has 2077 states and 2793 transitions. [2024-11-27 19:53:50,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-27 19:53:50,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2077 states and 2793 transitions. [2024-11-27 19:53:50,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 19:53:50,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:53:50,392 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:53:50,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-27 19:53:50,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:53:50,593 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:53:50,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:53:50,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2076768904, now seen corresponding path program 1 times [2024-11-27 19:53:50,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:53:50,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129685974] [2024-11-27 19:53:50,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:50,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:53:50,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:53:50,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1810803026] [2024-11-27 19:53:50,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:53:50,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:53:50,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:53:50,631 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:53:50,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 19:53:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:53:50,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-27 19:53:50,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:53:51,767 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 19:53:51,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:54:08,280 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 19:54:08,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:54:08,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129685974] [2024-11-27 19:54:08,281 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:54:08,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810803026] [2024-11-27 19:54:08,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810803026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:54:08,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:54:08,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2024-11-27 19:54:08,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560614306] [2024-11-27 19:54:08,282 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:54:08,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 19:54:08,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:54:08,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 19:54:08,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=483, Unknown=3, NotChecked=0, Total=600 [2024-11-27 19:54:08,284 INFO L87 Difference]: Start difference. First operand 2077 states and 2793 transitions. Second operand has 25 states, 22 states have (on average 4.090909090909091) internal successors, (90), 21 states have internal predecessors, (90), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 19:54:20,311 WARN L286 SmtUtils]: Spent 11.38s on a formula simplification. DAG size of input: 61 DAG size of output: 42 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 19:54:24,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 19:54:29,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 19:55:15,513 WARN L286 SmtUtils]: Spent 45.89s on a formula simplification. DAG size of input: 65 DAG size of output: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 19:55:21,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 19:55:23,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 19:55:27,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 19:55:31,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 19:55:35,988 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 [] [2024-11-27 19:56:12,619 WARN L286 SmtUtils]: Spent 24.18s on a formula simplification. DAG size of input: 53 DAG size of output: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 19:56:28,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:28,696 INFO L93 Difference]: Finished difference Result 3014 states and 4086 transitions. [2024-11-27 19:56:28,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-27 19:56:28,697 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 22 states have (on average 4.090909090909091) internal successors, (90), 21 states have internal predecessors, (90), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) Word has length 67 [2024-11-27 19:56:28,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:28,705 INFO L225 Difference]: With dead ends: 3014 [2024-11-27 19:56:28,705 INFO L226 Difference]: Without dead ends: 3005 [2024-11-27 19:56:28,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 571 ImplicationChecksByTransitivity, 120.1s TimeCoverageRelationStatistics Valid=655, Invalid=1787, Unknown=8, NotChecked=0, Total=2450 [2024-11-27 19:56:28,707 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 1133 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 107 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:28,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 247 Invalid, 2045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1933 Invalid, 5 Unknown, 0 Unchecked, 33.8s Time] [2024-11-27 19:56:28,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2024-11-27 19:56:28,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 2249. [2024-11-27 19:56:28,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2249 states, 2133 states have (on average 1.3258321612751993) internal successors, (2828), 2154 states have internal predecessors, (2828), 92 states have call successors, (92), 2 states have call predecessors, (92), 2 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-27 19:56:28,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2249 states to 2249 states and 3012 transitions. [2024-11-27 19:56:28,892 INFO L78 Accepts]: Start accepts. Automaton has 2249 states and 3012 transitions. Word has length 67 [2024-11-27 19:56:28,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:28,892 INFO L471 AbstractCegarLoop]: Abstraction has 2249 states and 3012 transitions. [2024-11-27 19:56:28,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 22 states have (on average 4.090909090909091) internal successors, (90), 21 states have internal predecessors, (90), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (10), 10 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-27 19:56:28,893 INFO L276 IsEmpty]: Start isEmpty. Operand 2249 states and 3012 transitions. [2024-11-27 19:56:28,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-27 19:56:28,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:28,893 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:56:28,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-27 19:56:29,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-27 19:56:29,094 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:56:29,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:29,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1052026205, now seen corresponding path program 2 times [2024-11-27 19:56:29,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:29,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531369700] [2024-11-27 19:56:29,095 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:56:29,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:29,116 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:56:29,116 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 19:56:29,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [518365034] [2024-11-27 19:56:29,117 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 19:56:29,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:56:29,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:56:29,120 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:56:29,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-27 19:56:29,172 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 19:56:29,173 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 19:56:29,175 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 19:56:29,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:56:30,084 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 24 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-27 19:56:30,085 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:56:31,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:31,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531369700] [2024-11-27 19:56:31,800 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:56:31,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518365034] [2024-11-27 19:56:31,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518365034] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 19:56:31,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 19:56:31,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-27 19:56:31,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345541707] [2024-11-27 19:56:31,801 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 19:56:31,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 19:56:31,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:31,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 19:56:31,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=424, Unknown=0, NotChecked=0, Total=552 [2024-11-27 19:56:31,802 INFO L87 Difference]: Start difference. First operand 2249 states and 3012 transitions. Second operand has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 19:56:33,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:33,481 INFO L93 Difference]: Finished difference Result 2873 states and 3850 transitions. [2024-11-27 19:56:33,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 19:56:33,481 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 67 [2024-11-27 19:56:33,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:33,488 INFO L225 Difference]: With dead ends: 2873 [2024-11-27 19:56:33,488 INFO L226 Difference]: Without dead ends: 2248 [2024-11-27 19:56:33,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=266, Invalid=856, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 19:56:33,491 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 156 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 1028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:33,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 244 Invalid, 1028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 19:56:33,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2248 states. [2024-11-27 19:56:33,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2248 to 2236. [2024-11-27 19:56:33,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2236 states, 2121 states have (on average 1.324846770391325) internal successors, (2810), 2142 states have internal predecessors, (2810), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-27 19:56:33,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2236 states to 2236 states and 2992 transitions. [2024-11-27 19:56:33,679 INFO L78 Accepts]: Start accepts. Automaton has 2236 states and 2992 transitions. Word has length 67 [2024-11-27 19:56:33,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:33,679 INFO L471 AbstractCegarLoop]: Abstraction has 2236 states and 2992 transitions. [2024-11-27 19:56:33,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.642857142857143) internal successors, (51), 14 states have internal predecessors, (51), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-27 19:56:33,679 INFO L276 IsEmpty]: Start isEmpty. Operand 2236 states and 2992 transitions. [2024-11-27 19:56:33,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-27 19:56:33,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:33,680 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:56:33,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-27 19:56:33,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-27 19:56:33,884 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:56:33,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:33,884 INFO L85 PathProgramCache]: Analyzing trace with hash 1074672191, now seen corresponding path program 1 times [2024-11-27 19:56:33,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:33,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072580705] [2024-11-27 19:56:33,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:33,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:56:33,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125832237] [2024-11-27 19:56:33,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:33,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:56:33,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:56:33,909 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:56:33,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 19:56:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:33,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 19:56:33,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:56:34,340 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 19:56:34,340 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:56:34,578 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 19:56:34,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:56:34,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072580705] [2024-11-27 19:56:34,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:56:34,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125832237] [2024-11-27 19:56:34,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125832237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:56:34,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:56:34,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-27 19:56:34,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668012345] [2024-11-27 19:56:34,579 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:56:34,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 19:56:34,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:56:34,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 19:56:34,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-27 19:56:34,580 INFO L87 Difference]: Start difference. First operand 2236 states and 2992 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 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) [2024-11-27 19:56:35,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:56:35,646 INFO L93 Difference]: Finished difference Result 2571 states and 3435 transitions. [2024-11-27 19:56:35,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 19:56:35,647 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 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 68 [2024-11-27 19:56:35,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:56:35,654 INFO L225 Difference]: With dead ends: 2571 [2024-11-27 19:56:35,655 INFO L226 Difference]: Without dead ends: 2569 [2024-11-27 19:56:35,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2024-11-27 19:56:35,656 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 385 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 19:56:35,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 198 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 19:56:35,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2024-11-27 19:56:35,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2316. [2024-11-27 19:56:35,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2316 states, 2196 states have (on average 1.3187613843351549) internal successors, (2896), 2217 states have internal predecessors, (2896), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-27 19:56:35,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2316 states to 2316 states and 3088 transitions. [2024-11-27 19:56:35,831 INFO L78 Accepts]: Start accepts. Automaton has 2316 states and 3088 transitions. Word has length 68 [2024-11-27 19:56:35,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:56:35,831 INFO L471 AbstractCegarLoop]: Abstraction has 2316 states and 3088 transitions. [2024-11-27 19:56:35,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 12 states have internal predecessors, (75), 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) [2024-11-27 19:56:35,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2316 states and 3088 transitions. [2024-11-27 19:56:35,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-27 19:56:35,832 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:56:35,832 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:56:35,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-27 19:56:36,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-27 19:56:36,033 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2024-11-27 19:56:36,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:56:36,033 INFO L85 PathProgramCache]: Analyzing trace with hash -20131802, now seen corresponding path program 1 times [2024-11-27 19:56:36,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:56:36,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657552319] [2024-11-27 19:56:36,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:36,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:56:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 19:56:36,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [63519977] [2024-11-27 19:56:36,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:56:36,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 19:56:36,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:56:36,054 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 19:56:36,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7269b9-9095-4f1b-a497-042ad34f8326/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-27 19:56:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:56:36,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-27 19:56:36,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 19:56:37,515 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-27 19:56:37,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 19:57:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 23 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-27 19:57:18,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:57:18,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657552319] [2024-11-27 19:57:18,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 19:57:18,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63519977] [2024-11-27 19:57:18,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63519977] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 19:57:18,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 19:57:18,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-27 19:57:18,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892923884] [2024-11-27 19:57:18,003 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 19:57:18,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 19:57:18,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:57:18,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 19:57:18,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2024-11-27 19:57:18,005 INFO L87 Difference]: Start difference. First operand 2316 states and 3088 transitions. Second operand has 27 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 27 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) [2024-11-27 19:59:42,440 WARN L286 SmtUtils]: Spent 2.38m on a formula simplification. DAG size of input: 150 DAG size of output: 130 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:01:21,311 WARN L286 SmtUtils]: Spent 1.53m on a formula simplification that was a NOOP. DAG size: 152 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:01:30,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:01:34,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:01:38,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:01:46,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:01:50,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:01:54,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.24s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:02:00,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:02:01,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:02:13,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:02:59,001 WARN L286 SmtUtils]: Spent 35.76s on a formula simplification. DAG size of input: 114 DAG size of output: 86 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:03:49,098 WARN L286 SmtUtils]: Spent 41.19s on a formula simplification. DAG size of input: 127 DAG size of output: 107 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:03:52,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:03:53,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:03:59,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:04:02,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:04:32,618 WARN L286 SmtUtils]: Spent 12.27s on a formula simplification. DAG size of input: 90 DAG size of output: 77 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:04:33,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:04:36,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:04:39,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []