./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.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_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/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_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/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_330c4073-2d9d-4fe9-8572-176e4a80649f/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 40c004ecbeb3948e318f4c5fc8011bd289b059bb9dbb2959c45853a9680cf20f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:59:39,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:59:39,776 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:59:39,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:59:39,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:59:39,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:59:39,840 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:59:39,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:59:39,841 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:59:39,841 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:59:39,842 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:59:39,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:59:39,843 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:59:39,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:59:39,844 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:59:39,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:59:39,844 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:59:39,845 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:59:39,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:59:39,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:59:39,845 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:59:39,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:59:39,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:59:39,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:59:39,846 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:59:39,846 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:59:39,846 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:59:39,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:59:39,846 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:59:39,846 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:59:39,847 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:59:39,847 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:59:39,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:59:39,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:59:39,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:39,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:59:39,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:59:39,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:59:39,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:59:39,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:39,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:59:39,849 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:59:39,849 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:59:39,849 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:59:39,849 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:59:39,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:59:39,850 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:59:39,850 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:59:39,850 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:59:39,850 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:59:39,850 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_330c4073-2d9d-4fe9-8572-176e4a80649f/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 -> 40c004ecbeb3948e318f4c5fc8011bd289b059bb9dbb2959c45853a9680cf20f [2024-11-28 03:59:40,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:59:40,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:59:40,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:59:40,215 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:59:40,216 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:59:40,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c [2024-11-28 03:59:43,364 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/data/430152608/c2412127b086490bb49987d95e62faec/FLAG5b69ac525 [2024-11-28 03:59:43,647 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:59:43,648 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_valuebound1.c [2024-11-28 03:59:43,661 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/data/430152608/c2412127b086490bb49987d95e62faec/FLAG5b69ac525 [2024-11-28 03:59:43,687 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/data/430152608/c2412127b086490bb49987d95e62faec [2024-11-28 03:59:43,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:59:43,693 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:59:43,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:59:43,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:59:43,703 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:59:43,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:59:43" (1/1) ... [2024-11-28 03:59:43,705 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6773ee8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:43, skipping insertion in model container [2024-11-28 03:59:43,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:59:43" (1/1) ... [2024-11-28 03:59:43,727 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:59:43,974 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:59:43,991 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:59:44,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:59:44,052 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:59:44,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44 WrapperNode [2024-11-28 03:59:44,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:59:44,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:59:44,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:59:44,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:59:44,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,115 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 136 [2024-11-28 03:59:44,115 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:59:44,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:59:44,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:59:44,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:59:44,130 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,132 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,158 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:59:44,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,159 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,166 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,180 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,180 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:59:44,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:59:44,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:59:44,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:59:44,184 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (1/1) ... [2024-11-28 03:59:44,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:59:44,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:44,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:59:44,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:59:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:59:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:59:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:59:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:59:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:59:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:59:44,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:59:44,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:59:44,351 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:59:44,354 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:59:45,029 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-28 03:59:45,029 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:59:45,044 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:59:45,045 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-28 03:59:45,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:45 BoogieIcfgContainer [2024-11-28 03:59:45,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:59:45,049 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:59:45,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:59:45,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:59:45,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:59:43" (1/3) ... [2024-11-28 03:59:45,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d871d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:59:45, skipping insertion in model container [2024-11-28 03:59:45,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:59:44" (2/3) ... [2024-11-28 03:59:45,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d871d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:59:45, skipping insertion in model container [2024-11-28 03:59:45,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:45" (3/3) ... [2024-11-28 03:59:45,058 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd3-ll_valuebound1.c [2024-11-28 03:59:45,076 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:59:45,078 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd3-ll_valuebound1.c that has 3 procedures, 131 locations, 1 initial locations, 3 loop locations, and 50 error locations. [2024-11-28 03:59:45,154 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:59:45,171 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;@136009fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:59:45,171 INFO L334 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2024-11-28 03:59:45,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 69 states have (on average 1.8840579710144927) internal successors, (130), 119 states have internal predecessors, (130), 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) [2024-11-28 03:59:45,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 03:59:45,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:45,186 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:45,186 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:45,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:45,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1196419522, now seen corresponding path program 1 times [2024-11-28 03:59:45,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:45,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369405265] [2024-11-28 03:59:45,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:45,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:45,366 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:59:45,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:45,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369405265] [2024-11-28 03:59:45,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369405265] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:45,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115482907] [2024-11-28 03:59:45,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:45,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:45,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:45,374 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:45,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:59:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:45,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:59:45,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:45,478 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:59:45,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:45,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115482907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:45,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:59:45,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:59:45,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550592602] [2024-11-28 03:59:45,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:45,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:59:45,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:45,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:59:45,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:59:45,515 INFO L87 Difference]: Start difference. First operand has 131 states, 69 states have (on average 1.8840579710144927) internal successors, (130), 119 states have internal predecessors, (130), 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) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:59:45,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:45,590 INFO L93 Difference]: Finished difference Result 258 states and 300 transitions. [2024-11-28 03:59:45,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:59:45,592 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 26 [2024-11-28 03:59:45,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:45,600 INFO L225 Difference]: With dead ends: 258 [2024-11-28 03:59:45,600 INFO L226 Difference]: Without dead ends: 124 [2024-11-28 03:59:45,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:59:45,610 INFO L435 NwaCegarLoop]: 139 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, 139 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 [2024-11-28 03:59:45,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:59:45,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-28 03:59:45,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-28 03:59:45,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 64 states have (on average 1.8125) internal successors, (116), 113 states have internal predecessors, (116), 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) [2024-11-28 03:59:45,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 132 transitions. [2024-11-28 03:59:45,662 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 132 transitions. Word has length 26 [2024-11-28 03:59:45,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:45,662 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 132 transitions. [2024-11-28 03:59:45,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:59:45,662 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 132 transitions. [2024-11-28 03:59:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-28 03:59:45,664 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:45,664 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:45,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:59:45,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:59:45,869 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:45,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:45,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1152528766, now seen corresponding path program 1 times [2024-11-28 03:59:45,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:45,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916747372] [2024-11-28 03:59:45,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:45,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:46,168 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:59:46,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:46,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916747372] [2024-11-28 03:59:46,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916747372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:46,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:46,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:59:46,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946993483] [2024-11-28 03:59:46,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:46,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:59:46,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:46,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:59:46,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:59:46,172 INFO L87 Difference]: Start difference. First operand 124 states and 132 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:46,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:46,669 INFO L93 Difference]: Finished difference Result 210 states and 230 transitions. [2024-11-28 03:59:46,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:59:46,669 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2024-11-28 03:59:46,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:46,671 INFO L225 Difference]: With dead ends: 210 [2024-11-28 03:59:46,671 INFO L226 Difference]: Without dead ends: 182 [2024-11-28 03:59:46,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:59:46,675 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 200 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:46,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 317 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:59:46,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-28 03:59:46,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 125. [2024-11-28 03:59:46,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 65 states have (on average 1.8) internal successors, (117), 114 states have internal predecessors, (117), 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) [2024-11-28 03:59:46,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 133 transitions. [2024-11-28 03:59:46,702 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 133 transitions. Word has length 26 [2024-11-28 03:59:46,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:46,703 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 133 transitions. [2024-11-28 03:59:46,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:46,705 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 133 transitions. [2024-11-28 03:59:46,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-28 03:59:46,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:46,706 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:46,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:59:46,707 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:46,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:46,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1368652243, now seen corresponding path program 1 times [2024-11-28 03:59:46,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:46,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962546073] [2024-11-28 03:59:46,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:46,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:59:46,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1078382084] [2024-11-28 03:59:46,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:46,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:46,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:46,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:46,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:59:46,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:46,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:59:46,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:46,842 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:46,843 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:46,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:46,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962546073] [2024-11-28 03:59:46,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:59:46,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078382084] [2024-11-28 03:59:46,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078382084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:46,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:46,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:59:46,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358267618] [2024-11-28 03:59:46,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:46,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:59:46,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:46,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:59:46,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:59:46,847 INFO L87 Difference]: Start difference. First operand 125 states and 133 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:46,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:46,952 INFO L93 Difference]: Finished difference Result 194 states and 210 transitions. [2024-11-28 03:59:46,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:59:46,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 27 [2024-11-28 03:59:46,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:46,958 INFO L225 Difference]: With dead ends: 194 [2024-11-28 03:59:46,959 INFO L226 Difference]: Without dead ends: 192 [2024-11-28 03:59:46,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 03:59:46,961 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 63 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:46,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 235 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:59:46,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-28 03:59:46,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 159. [2024-11-28 03:59:46,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 95 states have (on average 1.8421052631578947) internal successors, (175), 144 states have internal predecessors, (175), 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) [2024-11-28 03:59:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 199 transitions. [2024-11-28 03:59:46,983 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 199 transitions. Word has length 27 [2024-11-28 03:59:46,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:46,983 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 199 transitions. [2024-11-28 03:59:46,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:46,983 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 199 transitions. [2024-11-28 03:59:46,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-28 03:59:46,984 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:46,984 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:46,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 03:59:47,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:47,185 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:47,185 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:47,186 INFO L85 PathProgramCache]: Analyzing trace with hash -521453033, now seen corresponding path program 1 times [2024-11-28 03:59:47,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:47,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864971436] [2024-11-28 03:59:47,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:47,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:47,472 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:59:47,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:47,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864971436] [2024-11-28 03:59:47,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864971436] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:47,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657539712] [2024-11-28 03:59:47,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:47,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:47,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:47,476 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:47,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:59:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:47,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:59:47,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:47,575 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:47,575 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:47,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657539712] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:47,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:59:47,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2024-11-28 03:59:47,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384094425] [2024-11-28 03:59:47,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:47,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:59:47,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:47,576 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:59:47,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:59:47,577 INFO L87 Difference]: Start difference. First operand 159 states and 199 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:47,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:47,771 INFO L93 Difference]: Finished difference Result 190 states and 208 transitions. [2024-11-28 03:59:47,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:59:47,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-11-28 03:59:47,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:47,774 INFO L225 Difference]: With dead ends: 190 [2024-11-28 03:59:47,774 INFO L226 Difference]: Without dead ends: 186 [2024-11-28 03:59:47,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:59:47,775 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 56 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:47,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 217 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:59:47,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-28 03:59:47,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 162. [2024-11-28 03:59:47,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 98 states have (on average 1.7959183673469388) internal successors, (176), 147 states have internal predecessors, (176), 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) [2024-11-28 03:59:47,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 200 transitions. [2024-11-28 03:59:47,809 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 200 transitions. Word has length 28 [2024-11-28 03:59:47,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:47,809 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 200 transitions. [2024-11-28 03:59:47,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 200 transitions. [2024-11-28 03:59:47,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 03:59:47,810 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:47,810 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:47,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:48,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:48,015 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:48,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1014815381, now seen corresponding path program 1 times [2024-11-28 03:59:48,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:48,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625908623] [2024-11-28 03:59:48,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:48,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:59:48,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356005049] [2024-11-28 03:59:48,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:48,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:48,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:48,061 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:48,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:59:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:48,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:59:48,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:48,211 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:48,212 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:48,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:48,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625908623] [2024-11-28 03:59:48,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:59:48,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356005049] [2024-11-28 03:59:48,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356005049] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:48,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:48,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:59:48,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598791091] [2024-11-28 03:59:48,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:48,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:59:48,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:48,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:59:48,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:48,216 INFO L87 Difference]: Start difference. First operand 162 states and 200 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:48,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:48,472 INFO L93 Difference]: Finished difference Result 181 states and 200 transitions. [2024-11-28 03:59:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:59:48,473 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2024-11-28 03:59:48,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:48,474 INFO L225 Difference]: With dead ends: 181 [2024-11-28 03:59:48,474 INFO L226 Difference]: Without dead ends: 180 [2024-11-28 03:59:48,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:48,475 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 136 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:48,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 196 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:59:48,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-28 03:59:48,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 162. [2024-11-28 03:59:48,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 98 states have (on average 1.7857142857142858) internal successors, (175), 147 states have internal predecessors, (175), 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) [2024-11-28 03:59:48,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 199 transitions. [2024-11-28 03:59:48,500 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 199 transitions. Word has length 29 [2024-11-28 03:59:48,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:48,500 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 199 transitions. [2024-11-28 03:59:48,500 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:48,500 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 199 transitions. [2024-11-28 03:59:48,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 03:59:48,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:48,503 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:48,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:59:48,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:48,704 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:48,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:48,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1394813657, now seen corresponding path program 1 times [2024-11-28 03:59:48,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:48,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484077817] [2024-11-28 03:59:48,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:48,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:48,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:48,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484077817] [2024-11-28 03:59:48,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484077817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:48,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:48,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:59:48,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253336849] [2024-11-28 03:59:48,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:48,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:59:48,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:48,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:59:48,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:59:48,818 INFO L87 Difference]: Start difference. First operand 162 states and 199 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:48,994 INFO L93 Difference]: Finished difference Result 185 states and 203 transitions. [2024-11-28 03:59:48,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:59:48,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2024-11-28 03:59:48,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:48,999 INFO L225 Difference]: With dead ends: 185 [2024-11-28 03:59:48,999 INFO L226 Difference]: Without dead ends: 184 [2024-11-28 03:59:48,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:59:49,000 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 53 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:49,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 339 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:59:49,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-11-28 03:59:49,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 163. [2024-11-28 03:59:49,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.7777777777777777) internal successors, (176), 148 states have internal predecessors, (176), 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) [2024-11-28 03:59:49,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 200 transitions. [2024-11-28 03:59:49,027 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 200 transitions. Word has length 30 [2024-11-28 03:59:49,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:49,028 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 200 transitions. [2024-11-28 03:59:49,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:49,028 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 200 transitions. [2024-11-28 03:59:49,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-28 03:59:49,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:49,029 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:49,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:59:49,029 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:49,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:49,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1394505819, now seen corresponding path program 1 times [2024-11-28 03:59:49,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:49,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972505310] [2024-11-28 03:59:49,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:49,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:59:49,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [596863225] [2024-11-28 03:59:49,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:49,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:49,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:49,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:49,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:59:49,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:49,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:59:49,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:49,200 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:49,201 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:49,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:49,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972505310] [2024-11-28 03:59:49,202 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:59:49,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596863225] [2024-11-28 03:59:49,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596863225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:49,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:49,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:59:49,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712622392] [2024-11-28 03:59:49,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:49,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:59:49,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:49,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:59:49,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:49,204 INFO L87 Difference]: Start difference. First operand 163 states and 200 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:49,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:49,376 INFO L93 Difference]: Finished difference Result 182 states and 200 transitions. [2024-11-28 03:59:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:59:49,377 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 30 [2024-11-28 03:59:49,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:49,379 INFO L225 Difference]: With dead ends: 182 [2024-11-28 03:59:49,379 INFO L226 Difference]: Without dead ends: 181 [2024-11-28 03:59:49,379 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:49,380 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 135 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:49,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 196 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:59:49,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-28 03:59:49,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 163. [2024-11-28 03:59:49,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.7676767676767677) internal successors, (175), 148 states have internal predecessors, (175), 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) [2024-11-28 03:59:49,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 199 transitions. [2024-11-28 03:59:49,395 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 199 transitions. Word has length 30 [2024-11-28 03:59:49,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:49,395 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 199 transitions. [2024-11-28 03:59:49,395 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, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:49,395 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 199 transitions. [2024-11-28 03:59:49,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 03:59:49,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:49,396 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:49,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:59:49,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 03:59:49,600 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:49,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:49,601 INFO L85 PathProgramCache]: Analyzing trace with hash 289550559, now seen corresponding path program 1 times [2024-11-28 03:59:49,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:49,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684395457] [2024-11-28 03:59:49,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:49,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:49,781 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:59:49,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:49,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684395457] [2024-11-28 03:59:49,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684395457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:49,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742292609] [2024-11-28 03:59:49,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:49,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:49,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:49,784 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:49,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:59:49,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:49,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:59:49,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:49,950 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:49,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742292609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:49,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:59:49,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 10 [2024-11-28 03:59:49,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945597746] [2024-11-28 03:59:49,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:49,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:59:49,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:49,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:59:49,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:59:49,952 INFO L87 Difference]: Start difference. First operand 163 states and 199 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:50,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:50,162 INFO L93 Difference]: Finished difference Result 183 states and 201 transitions. [2024-11-28 03:59:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:59:50,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2024-11-28 03:59:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:50,164 INFO L225 Difference]: With dead ends: 183 [2024-11-28 03:59:50,165 INFO L226 Difference]: Without dead ends: 182 [2024-11-28 03:59:50,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:59:50,165 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 52 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:50,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 285 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:59:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-28 03:59:50,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 164. [2024-11-28 03:59:50,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 100 states have (on average 1.76) internal successors, (176), 149 states have internal predecessors, (176), 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) [2024-11-28 03:59:50,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 200 transitions. [2024-11-28 03:59:50,177 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 200 transitions. Word has length 31 [2024-11-28 03:59:50,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:50,177 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 200 transitions. [2024-11-28 03:59:50,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:50,178 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 200 transitions. [2024-11-28 03:59:50,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 03:59:50,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:50,178 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:50,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:50,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:50,382 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:50,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:50,383 INFO L85 PathProgramCache]: Analyzing trace with hash 280007511, now seen corresponding path program 1 times [2024-11-28 03:59:50,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:50,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721685608] [2024-11-28 03:59:50,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:50,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:50,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:59:50,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648972474] [2024-11-28 03:59:50,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:50,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:50,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:50,406 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:50,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:59:50,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:50,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:59:50,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:50,542 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:50,542 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:50,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:50,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721685608] [2024-11-28 03:59:50,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:59:50,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648972474] [2024-11-28 03:59:50,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648972474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:50,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:50,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:59:50,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115545706] [2024-11-28 03:59:50,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:50,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:59:50,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:50,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:59:50,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:50,544 INFO L87 Difference]: Start difference. First operand 164 states and 200 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:50,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:50,716 INFO L93 Difference]: Finished difference Result 190 states and 206 transitions. [2024-11-28 03:59:50,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:59:50,717 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 31 [2024-11-28 03:59:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:50,718 INFO L225 Difference]: With dead ends: 190 [2024-11-28 03:59:50,718 INFO L226 Difference]: Without dead ends: 189 [2024-11-28 03:59:50,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:50,719 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 99 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:50,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 237 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:59:50,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-28 03:59:50,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 164. [2024-11-28 03:59:50,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 100 states have (on average 1.75) internal successors, (175), 149 states have internal predecessors, (175), 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) [2024-11-28 03:59:50,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 199 transitions. [2024-11-28 03:59:50,740 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 199 transitions. Word has length 31 [2024-11-28 03:59:50,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:50,740 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 199 transitions. [2024-11-28 03:59:50,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:50,741 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 199 transitions. [2024-11-28 03:59:50,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 03:59:50,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:50,741 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:50,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:50,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:50,943 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:50,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:50,943 INFO L85 PathProgramCache]: Analyzing trace with hash 386132891, now seen corresponding path program 1 times [2024-11-28 03:59:50,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:50,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791631264] [2024-11-28 03:59:50,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:50,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:59:51,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:51,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791631264] [2024-11-28 03:59:51,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791631264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:51,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825949678] [2024-11-28 03:59:51,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:51,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:51,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:51,182 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:51,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:59:51,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:51,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 03:59:51,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:51,270 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:51,270 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:51,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825949678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:51,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:59:51,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 9 [2024-11-28 03:59:51,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326672149] [2024-11-28 03:59:51,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:51,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:59:51,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:51,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:59:51,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:59:51,272 INFO L87 Difference]: Start difference. First operand 164 states and 199 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:51,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:51,426 INFO L93 Difference]: Finished difference Result 274 states and 350 transitions. [2024-11-28 03:59:51,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:59:51,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-11-28 03:59:51,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:51,429 INFO L225 Difference]: With dead ends: 274 [2024-11-28 03:59:51,429 INFO L226 Difference]: Without dead ends: 268 [2024-11-28 03:59:51,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:59:51,430 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 55 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:51,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 212 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:59:51,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-28 03:59:51,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 236. [2024-11-28 03:59:51,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 164 states have (on average 1.7195121951219512) internal successors, (282), 213 states have internal predecessors, (282), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:59:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 322 transitions. [2024-11-28 03:59:51,451 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 322 transitions. Word has length 32 [2024-11-28 03:59:51,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:51,451 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 322 transitions. [2024-11-28 03:59:51,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:51,452 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 322 transitions. [2024-11-28 03:59:51,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 03:59:51,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:51,452 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:51,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:51,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 03:59:51,657 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:51,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:51,657 INFO L85 PathProgramCache]: Analyzing trace with hash 90298333, now seen corresponding path program 1 times [2024-11-28 03:59:51,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:51,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081919003] [2024-11-28 03:59:51,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:51,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:59:51,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1910608322] [2024-11-28 03:59:51,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:51,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:51,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:51,675 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:51,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:59:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:51,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:59:51,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:51,840 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:51,840 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:51,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:51,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081919003] [2024-11-28 03:59:51,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:59:51,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910608322] [2024-11-28 03:59:51,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910608322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:51,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:51,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:59:51,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465008477] [2024-11-28 03:59:51,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:51,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:59:51,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:51,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:59:51,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:51,842 INFO L87 Difference]: Start difference. First operand 236 states and 322 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:52,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:52,217 INFO L93 Difference]: Finished difference Result 261 states and 326 transitions. [2024-11-28 03:59:52,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:59:52,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 32 [2024-11-28 03:59:52,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:52,219 INFO L225 Difference]: With dead ends: 261 [2024-11-28 03:59:52,219 INFO L226 Difference]: Without dead ends: 260 [2024-11-28 03:59:52,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:52,220 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 55 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:52,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 318 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:59:52,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-28 03:59:52,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 236. [2024-11-28 03:59:52,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 164 states have (on average 1.7073170731707317) internal successors, (280), 213 states have internal predecessors, (280), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:59:52,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 320 transitions. [2024-11-28 03:59:52,240 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 320 transitions. Word has length 32 [2024-11-28 03:59:52,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:52,240 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 320 transitions. [2024-11-28 03:59:52,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:52,241 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 320 transitions. [2024-11-28 03:59:52,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 03:59:52,241 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:52,241 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:52,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:59:52,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:52,442 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:52,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:52,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1706525789, now seen corresponding path program 1 times [2024-11-28 03:59:52,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:52,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674710810] [2024-11-28 03:59:52,443 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:52,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:52,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:52,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674710810] [2024-11-28 03:59:52,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674710810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:52,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:52,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:59:52,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747873476] [2024-11-28 03:59:52,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:52,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:59:52,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:52,619 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:59:52,619 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:59:52,619 INFO L87 Difference]: Start difference. First operand 236 states and 320 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:53,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:53,133 INFO L93 Difference]: Finished difference Result 265 states and 330 transitions. [2024-11-28 03:59:53,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:59:53,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2024-11-28 03:59:53,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:53,135 INFO L225 Difference]: With dead ends: 265 [2024-11-28 03:59:53,136 INFO L226 Difference]: Without dead ends: 264 [2024-11-28 03:59:53,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:59:53,137 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 54 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:53,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 430 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:59:53,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-28 03:59:53,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 241. [2024-11-28 03:59:53,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 169 states have (on average 1.698224852071006) internal successors, (287), 218 states have internal predecessors, (287), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:59:53,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 327 transitions. [2024-11-28 03:59:53,160 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 327 transitions. Word has length 34 [2024-11-28 03:59:53,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:53,161 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 327 transitions. [2024-11-28 03:59:53,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:53,162 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 327 transitions. [2024-11-28 03:59:53,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 03:59:53,163 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:53,163 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:53,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:59:53,163 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:53,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:53,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1362692067, now seen corresponding path program 1 times [2024-11-28 03:59:53,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:53,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530189905] [2024-11-28 03:59:53,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:53,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:53,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:53,378 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:59:53,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:53,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530189905] [2024-11-28 03:59:53,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530189905] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:53,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553384586] [2024-11-28 03:59:53,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:53,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:53,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:53,381 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:53,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:59:53,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:53,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:59:53,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:53,540 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:53,540 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:53,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553384586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:53,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:59:53,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-28 03:59:53,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532602920] [2024-11-28 03:59:53,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:53,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:59:53,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:53,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:59:53,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:59:53,544 INFO L87 Difference]: Start difference. First operand 241 states and 327 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:53,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:53,783 INFO L93 Difference]: Finished difference Result 282 states and 338 transitions. [2024-11-28 03:59:53,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:59:53,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2024-11-28 03:59:53,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:53,787 INFO L225 Difference]: With dead ends: 282 [2024-11-28 03:59:53,788 INFO L226 Difference]: Without dead ends: 281 [2024-11-28 03:59:53,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:59:53,789 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 149 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:53,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 346 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:59:53,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-28 03:59:53,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 243. [2024-11-28 03:59:53,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 171 states have (on average 1.6900584795321638) internal successors, (289), 220 states have internal predecessors, (289), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:59:53,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 329 transitions. [2024-11-28 03:59:53,818 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 329 transitions. Word has length 35 [2024-11-28 03:59:53,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:53,819 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 329 transitions. [2024-11-28 03:59:53,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:59:53,820 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 329 transitions. [2024-11-28 03:59:53,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-28 03:59:53,821 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:53,821 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:53,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 03:59:54,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:54,023 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:54,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:54,023 INFO L85 PathProgramCache]: Analyzing trace with hash -417947209, now seen corresponding path program 1 times [2024-11-28 03:59:54,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:54,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231394119] [2024-11-28 03:59:54,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:54,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:54,196 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:59:54,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:54,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231394119] [2024-11-28 03:59:54,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231394119] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:54,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459908147] [2024-11-28 03:59:54,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:54,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:54,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:54,199 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:54,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:59:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:54,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:59:54,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:54,336 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:54,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:54,580 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:54,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459908147] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:59:54,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:59:54,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 15 [2024-11-28 03:59:54,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388853773] [2024-11-28 03:59:54,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:59:54,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:59:54,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:54,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:59:54,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:59:54,582 INFO L87 Difference]: Start difference. First operand 243 states and 329 transitions. Second operand has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:59:56,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:56,601 INFO L93 Difference]: Finished difference Result 867 states and 1152 transitions. [2024-11-28 03:59:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 03:59:56,602 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2024-11-28 03:59:56,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:56,607 INFO L225 Difference]: With dead ends: 867 [2024-11-28 03:59:56,608 INFO L226 Difference]: Without dead ends: 839 [2024-11-28 03:59:56,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=316, Invalid=944, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:59:56,610 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 1738 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1738 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:56,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1738 Valid, 1059 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:59:56,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-11-28 03:59:56,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 246. [2024-11-28 03:59:56,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 174 states have (on average 1.6896551724137931) internal successors, (294), 223 states have internal predecessors, (294), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:59:56,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 334 transitions. [2024-11-28 03:59:56,651 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 334 transitions. Word has length 37 [2024-11-28 03:59:56,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:56,652 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 334 transitions. [2024-11-28 03:59:56,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.3333333333333335) internal successors, (50), 14 states have internal predecessors, (50), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 03:59:56,652 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 334 transitions. [2024-11-28 03:59:56,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 03:59:56,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:56,656 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 03:59:56,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 03:59:56,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 03:59:56,860 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:56,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:56,860 INFO L85 PathProgramCache]: Analyzing trace with hash -71462726, now seen corresponding path program 1 times [2024-11-28 03:59:56,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:56,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836268191] [2024-11-28 03:59:56,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:56,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:56,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:57,045 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:59:57,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:57,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836268191] [2024-11-28 03:59:57,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836268191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:57,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233560204] [2024-11-28 03:59:57,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:57,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:57,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:57,048 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:57,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:59:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:57,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 03:59:57,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:59:57,310 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:57,612 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-28 03:59:57,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233560204] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:59:57,613 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:59:57,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 19 [2024-11-28 03:59:57,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815225208] [2024-11-28 03:59:57,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:59:57,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:59:57,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:57,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:59:57,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:59:57,617 INFO L87 Difference]: Start difference. First operand 246 states and 334 transitions. Second operand has 19 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-28 03:59:59,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:59,102 INFO L93 Difference]: Finished difference Result 424 states and 527 transitions. [2024-11-28 03:59:59,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 03:59:59,102 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 38 [2024-11-28 03:59:59,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:59,104 INFO L225 Difference]: With dead ends: 424 [2024-11-28 03:59:59,104 INFO L226 Difference]: Without dead ends: 263 [2024-11-28 03:59:59,105 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=177, Invalid=693, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:59:59,106 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 1284 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:59,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 539 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:59:59,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-28 03:59:59,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 237. [2024-11-28 03:59:59,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 165 states have (on average 1.7212121212121212) internal successors, (284), 214 states have internal predecessors, (284), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:59:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 324 transitions. [2024-11-28 03:59:59,133 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 324 transitions. Word has length 38 [2024-11-28 03:59:59,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:59,134 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 324 transitions. [2024-11-28 03:59:59,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-28 03:59:59,134 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 324 transitions. [2024-11-28 03:59:59,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 03:59:59,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:59,137 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:59,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:59,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 03:59:59,341 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:59,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:59,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1351776958, now seen corresponding path program 1 times [2024-11-28 03:59:59,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:59,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545945094] [2024-11-28 03:59:59,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:59,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:59:59,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [94141583] [2024-11-28 03:59:59,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:59,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:59,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:59,358 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:59,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:59:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:59,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:59:59,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:59,488 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:59:59,488 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:59,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:59,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545945094] [2024-11-28 03:59:59,488 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:59:59,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94141583] [2024-11-28 03:59:59,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94141583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:59,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:59:59,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:59:59,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296112848] [2024-11-28 03:59:59,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:59,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:59:59,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:59,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:59:59,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:59,490 INFO L87 Difference]: Start difference. First operand 237 states and 324 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 03:59:59,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:59,681 INFO L93 Difference]: Finished difference Result 255 states and 326 transitions. [2024-11-28 03:59:59,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:59:59,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 40 [2024-11-28 03:59:59,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:59,683 INFO L225 Difference]: With dead ends: 255 [2024-11-28 03:59:59,683 INFO L226 Difference]: Without dead ends: 254 [2024-11-28 03:59:59,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:59:59,684 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 188 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:59,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 174 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:59:59,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-28 03:59:59,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 237. [2024-11-28 03:59:59,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 165 states have (on average 1.709090909090909) internal successors, (282), 214 states have internal predecessors, (282), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 03:59:59,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 322 transitions. [2024-11-28 03:59:59,708 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 322 transitions. Word has length 40 [2024-11-28 03:59:59,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:59,709 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 322 transitions. [2024-11-28 03:59:59,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 03:59:59,709 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 322 transitions. [2024-11-28 03:59:59,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 03:59:59,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:59,710 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:59,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:59,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:59:59,911 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 03:59:59,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:59,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1044587355, now seen corresponding path program 1 times [2024-11-28 03:59:59,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:59,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556654091] [2024-11-28 03:59:59,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:59,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:59:59,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2110131963] [2024-11-28 03:59:59,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:59,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:59,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:59,933 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:59,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:59:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:59,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 03:59:59,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:00:00,062 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:00,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:00,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556654091] [2024-11-28 04:00:00,062 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:00,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2110131963] [2024-11-28 04:00:00,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2110131963] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:00,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:00,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:00,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762332814] [2024-11-28 04:00:00,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:00,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:00,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:00,063 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:00,063 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:00,064 INFO L87 Difference]: Start difference. First operand 237 states and 322 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 04:00:00,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:00,272 INFO L93 Difference]: Finished difference Result 255 states and 324 transitions. [2024-11-28 04:00:00,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:00,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2024-11-28 04:00:00,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:00,277 INFO L225 Difference]: With dead ends: 255 [2024-11-28 04:00:00,277 INFO L226 Difference]: Without dead ends: 254 [2024-11-28 04:00:00,277 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:00,278 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 140 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:00,278 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 190 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:00:00,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-28 04:00:00,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 237. [2024-11-28 04:00:00,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 165 states have (on average 1.696969696969697) internal successors, (280), 214 states have internal predecessors, (280), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:00:00,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 320 transitions. [2024-11-28 04:00:00,307 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 320 transitions. Word has length 41 [2024-11-28 04:00:00,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:00,308 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 320 transitions. [2024-11-28 04:00:00,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 04:00:00,308 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 320 transitions. [2024-11-28 04:00:00,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 04:00:00,309 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:00,309 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:00,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:00:00,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:00:00,509 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:00,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:00,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1977530268, now seen corresponding path program 1 times [2024-11-28 04:00:00,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:00,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847927554] [2024-11-28 04:00:00,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:00,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:00,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125229954] [2024-11-28 04:00:00,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:00,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:00,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:00,526 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:00,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:00:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:00,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:00:00,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:00,625 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:00:00,625 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:00,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:00,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847927554] [2024-11-28 04:00:00,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:00,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125229954] [2024-11-28 04:00:00,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125229954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:00,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:00,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:00,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902400615] [2024-11-28 04:00:00,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:00,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:00,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:00,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:00,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:00,628 INFO L87 Difference]: Start difference. First operand 237 states and 320 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-28 04:00:00,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:00,858 INFO L93 Difference]: Finished difference Result 264 states and 331 transitions. [2024-11-28 04:00:00,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:00,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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 42 [2024-11-28 04:00:00,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:00,860 INFO L225 Difference]: With dead ends: 264 [2024-11-28 04:00:00,861 INFO L226 Difference]: Without dead ends: 263 [2024-11-28 04:00:00,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:00,861 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 91 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:00,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 229 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:00:00,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-28 04:00:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 237. [2024-11-28 04:00:00,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 165 states have (on average 1.6848484848484848) internal successors, (278), 214 states have internal predecessors, (278), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:00:00,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 318 transitions. [2024-11-28 04:00:00,888 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 318 transitions. Word has length 42 [2024-11-28 04:00:00,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:00,888 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 318 transitions. [2024-11-28 04:00:00,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 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) [2024-11-28 04:00:00,889 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 318 transitions. [2024-11-28 04:00:00,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:00:00,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:00,890 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:00,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 04:00:01,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:00:01,090 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:01,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:01,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1173896067, now seen corresponding path program 1 times [2024-11-28 04:00:01,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:01,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518921913] [2024-11-28 04:00:01,091 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:01,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:01,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:01,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [168383327] [2024-11-28 04:00:01,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:01,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:01,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:01,106 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:01,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:00:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:01,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:00:01,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:00:01,271 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:01,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:01,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518921913] [2024-11-28 04:00:01,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:01,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168383327] [2024-11-28 04:00:01,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168383327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:01,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:01,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:01,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231282677] [2024-11-28 04:00:01,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:01,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:01,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:01,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:01,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:01,273 INFO L87 Difference]: Start difference. First operand 237 states and 318 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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) [2024-11-28 04:00:01,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:01,781 INFO L93 Difference]: Finished difference Result 265 states and 330 transitions. [2024-11-28 04:00:01,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:01,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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 43 [2024-11-28 04:00:01,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:01,784 INFO L225 Difference]: With dead ends: 265 [2024-11-28 04:00:01,784 INFO L226 Difference]: Without dead ends: 264 [2024-11-28 04:00:01,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:01,785 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 50 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:01,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 296 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:00:01,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-28 04:00:01,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 237. [2024-11-28 04:00:01,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 165 states have (on average 1.6727272727272726) internal successors, (276), 214 states have internal predecessors, (276), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:00:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 316 transitions. [2024-11-28 04:00:01,811 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 316 transitions. Word has length 43 [2024-11-28 04:00:01,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:01,812 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 316 transitions. [2024-11-28 04:00:01,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (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) [2024-11-28 04:00:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 316 transitions. [2024-11-28 04:00:01,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 04:00:01,813 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:01,813 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 04:00:01,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:00:02,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:02,014 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:02,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:02,015 INFO L85 PathProgramCache]: Analyzing trace with hash 2146453195, now seen corresponding path program 1 times [2024-11-28 04:00:02,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:02,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397045876] [2024-11-28 04:00:02,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:02,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:02,194 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 04:00:02,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:02,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397045876] [2024-11-28 04:00:02,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397045876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:02,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336367382] [2024-11-28 04:00:02,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:02,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:02,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:02,199 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:02,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:00:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:02,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:00:02,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:02,396 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:00:02,397 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:02,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336367382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:02,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:02,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-28 04:00:02,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765984331] [2024-11-28 04:00:02,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:02,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:00:02,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:02,398 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:00:02,398 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:00:02,399 INFO L87 Difference]: Start difference. First operand 237 states and 316 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:00:02,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:02,877 INFO L93 Difference]: Finished difference Result 264 states and 320 transitions. [2024-11-28 04:00:02,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:00:02,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-11-28 04:00:02,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:02,879 INFO L225 Difference]: With dead ends: 264 [2024-11-28 04:00:02,879 INFO L226 Difference]: Without dead ends: 263 [2024-11-28 04:00:02,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:00:02,880 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 289 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:02,880 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 248 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:00:02,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-28 04:00:02,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 237. [2024-11-28 04:00:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 165 states have (on average 1.6666666666666667) internal successors, (275), 214 states have internal predecessors, (275), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:00:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 315 transitions. [2024-11-28 04:00:02,916 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 315 transitions. Word has length 51 [2024-11-28 04:00:02,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:02,916 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 315 transitions. [2024-11-28 04:00:02,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:00:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 315 transitions. [2024-11-28 04:00:02,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 04:00:02,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:02,917 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 04:00:02,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:00:03,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:03,121 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:03,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:03,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2115539711, now seen corresponding path program 1 times [2024-11-28 04:00:03,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:03,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490840409] [2024-11-28 04:00:03,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:03,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:03,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:03,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1721902643] [2024-11-28 04:00:03,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:03,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:03,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:03,140 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:03,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:00:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:03,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:00:03,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:00:03,300 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:03,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:03,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490840409] [2024-11-28 04:00:03,300 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:03,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721902643] [2024-11-28 04:00:03,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721902643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:03,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:03,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:00:03,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888156802] [2024-11-28 04:00:03,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:03,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:00:03,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:03,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:00:03,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:00:03,302 INFO L87 Difference]: Start difference. First operand 237 states and 315 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:00:03,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:03,717 INFO L93 Difference]: Finished difference Result 264 states and 319 transitions. [2024-11-28 04:00:03,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:00:03,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-11-28 04:00:03,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:03,720 INFO L225 Difference]: With dead ends: 264 [2024-11-28 04:00:03,720 INFO L226 Difference]: Without dead ends: 263 [2024-11-28 04:00:03,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:00:03,721 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 258 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:03,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 270 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:00:03,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-28 04:00:03,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 237. [2024-11-28 04:00:03,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 165 states have (on average 1.6606060606060606) internal successors, (274), 214 states have internal predecessors, (274), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-28 04:00:03,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 314 transitions. [2024-11-28 04:00:03,747 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 314 transitions. Word has length 52 [2024-11-28 04:00:03,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:03,748 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 314 transitions. [2024-11-28 04:00:03,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 04:00:03,748 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 314 transitions. [2024-11-28 04:00:03,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:00:03,749 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:03,749 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 04:00:03,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:00:03,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 04:00:03,953 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:03,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:03,954 INFO L85 PathProgramCache]: Analyzing trace with hash 497762000, now seen corresponding path program 1 times [2024-11-28 04:00:03,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:03,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965801200] [2024-11-28 04:00:03,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:03,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:03,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771401644] [2024-11-28 04:00:03,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:03,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:03,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:03,972 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:03,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:00:04,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:04,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:00:04,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:00:04,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:04,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:04,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965801200] [2024-11-28 04:00:04,164 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:04,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771401644] [2024-11-28 04:00:04,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771401644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:04,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:04,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:00:04,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144368638] [2024-11-28 04:00:04,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:04,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:00:04,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:04,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:00:04,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:00:04,166 INFO L87 Difference]: Start difference. First operand 237 states and 314 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:00:04,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:04,495 INFO L93 Difference]: Finished difference Result 312 states and 402 transitions. [2024-11-28 04:00:04,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:00:04,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 58 [2024-11-28 04:00:04,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:04,497 INFO L225 Difference]: With dead ends: 312 [2024-11-28 04:00:04,497 INFO L226 Difference]: Without dead ends: 309 [2024-11-28 04:00:04,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:00:04,499 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 221 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:04,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 198 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:00:04,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-28 04:00:04,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 291. [2024-11-28 04:00:04,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 211 states have (on average 1.5734597156398105) internal successors, (332), 260 states have internal predecessors, (332), 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) [2024-11-28 04:00:04,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 388 transitions. [2024-11-28 04:00:04,534 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 388 transitions. Word has length 58 [2024-11-28 04:00:04,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:04,534 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 388 transitions. [2024-11-28 04:00:04,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:00:04,535 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 388 transitions. [2024-11-28 04:00:04,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:00:04,535 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:04,536 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2024-11-28 04:00:04,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:00:04,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 04:00:04,739 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:04,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:04,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1749247073, now seen corresponding path program 1 times [2024-11-28 04:00:04,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:04,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570048477] [2024-11-28 04:00:04,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:04,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:04,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232960454] [2024-11-28 04:00:04,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:04,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:04,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:04,767 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:04,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:00:04,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:04,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:00:04,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:04,953 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 04:00:04,953 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:04,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:04,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570048477] [2024-11-28 04:00:04,953 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:04,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232960454] [2024-11-28 04:00:04,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232960454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:04,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:04,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:00:04,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389063109] [2024-11-28 04:00:04,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:04,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:00:04,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:04,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:00:04,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:00:04,955 INFO L87 Difference]: Start difference. First operand 291 states and 388 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:00:05,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:05,302 INFO L93 Difference]: Finished difference Result 310 states and 396 transitions. [2024-11-28 04:00:05,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:00:05,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 59 [2024-11-28 04:00:05,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:05,305 INFO L225 Difference]: With dead ends: 310 [2024-11-28 04:00:05,305 INFO L226 Difference]: Without dead ends: 309 [2024-11-28 04:00:05,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:00:05,306 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 229 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:05,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 249 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:00:05,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-28 04:00:05,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 291. [2024-11-28 04:00:05,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 211 states have (on average 1.5639810426540284) internal successors, (330), 260 states have internal predecessors, (330), 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) [2024-11-28 04:00:05,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 386 transitions. [2024-11-28 04:00:05,347 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 386 transitions. Word has length 59 [2024-11-28 04:00:05,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:05,348 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 386 transitions. [2024-11-28 04:00:05,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 04:00:05,348 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 386 transitions. [2024-11-28 04:00:05,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:00:05,348 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:05,349 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:05,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:00:05,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 04:00:05,549 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:05,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:05,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1317535503, now seen corresponding path program 1 times [2024-11-28 04:00:05,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:05,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117511050] [2024-11-28 04:00:05,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:05,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:05,637 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:00:05,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:05,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117511050] [2024-11-28 04:00:05,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117511050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:05,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:05,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:00:05,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680647077] [2024-11-28 04:00:05,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:05,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:00:05,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:05,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:00:05,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:00:05,639 INFO L87 Difference]: Start difference. First operand 291 states and 386 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:06,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:06,041 INFO L93 Difference]: Finished difference Result 313 states and 398 transitions. [2024-11-28 04:00:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:00:06,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2024-11-28 04:00:06,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:06,043 INFO L225 Difference]: With dead ends: 313 [2024-11-28 04:00:06,044 INFO L226 Difference]: Without dead ends: 311 [2024-11-28 04:00:06,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:00:06,044 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 257 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:06,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 244 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:00:06,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-28 04:00:06,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 293. [2024-11-28 04:00:06,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 213 states have (on average 1.5492957746478873) internal successors, (330), 262 states have internal predecessors, (330), 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) [2024-11-28 04:00:06,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 386 transitions. [2024-11-28 04:00:06,084 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 386 transitions. Word has length 65 [2024-11-28 04:00:06,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:06,084 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 386 transitions. [2024-11-28 04:00:06,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:06,085 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 386 transitions. [2024-11-28 04:00:06,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 04:00:06,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:06,087 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:06,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 04:00:06,087 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:06,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:06,088 INFO L85 PathProgramCache]: Analyzing trace with hash 2106072483, now seen corresponding path program 1 times [2024-11-28 04:00:06,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:06,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202335515] [2024-11-28 04:00:06,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:06,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:06,208 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:00:06,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:06,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202335515] [2024-11-28 04:00:06,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202335515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:06,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:06,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:00:06,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806697510] [2024-11-28 04:00:06,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:06,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:00:06,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:06,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:00:06,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:00:06,211 INFO L87 Difference]: Start difference. First operand 293 states and 386 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:06,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:06,586 INFO L93 Difference]: Finished difference Result 322 states and 394 transitions. [2024-11-28 04:00:06,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:00:06,586 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2024-11-28 04:00:06,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:06,588 INFO L225 Difference]: With dead ends: 322 [2024-11-28 04:00:06,588 INFO L226 Difference]: Without dead ends: 320 [2024-11-28 04:00:06,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:00:06,589 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 359 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:06,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 368 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:00:06,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-28 04:00:06,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 293. [2024-11-28 04:00:06,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 213 states have (on average 1.539906103286385) internal successors, (328), 262 states have internal predecessors, (328), 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) [2024-11-28 04:00:06,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 384 transitions. [2024-11-28 04:00:06,636 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 384 transitions. Word has length 66 [2024-11-28 04:00:06,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:06,637 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 384 transitions. [2024-11-28 04:00:06,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 384 transitions. [2024-11-28 04:00:06,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 04:00:06,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:06,638 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:06,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 04:00:06,639 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:06,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:06,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1006063570, now seen corresponding path program 1 times [2024-11-28 04:00:06,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:06,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459062331] [2024-11-28 04:00:06,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:06,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:06,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:06,697 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:00:06,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:06,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459062331] [2024-11-28 04:00:06,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459062331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:06,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:06,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:00:06,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216810056] [2024-11-28 04:00:06,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:06,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:00:06,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:06,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:00:06,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:06,700 INFO L87 Difference]: Start difference. First operand 293 states and 384 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:06,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:06,797 INFO L93 Difference]: Finished difference Result 376 states and 509 transitions. [2024-11-28 04:00:06,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:00:06,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-28 04:00:06,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:06,799 INFO L225 Difference]: With dead ends: 376 [2024-11-28 04:00:06,800 INFO L226 Difference]: Without dead ends: 375 [2024-11-28 04:00:06,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:06,800 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 23 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:06,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 222 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:00:06,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-28 04:00:06,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 345. [2024-11-28 04:00:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 257 states have (on average 1.6031128404669261) internal successors, (412), 306 states have internal predecessors, (412), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:00:06,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 484 transitions. [2024-11-28 04:00:06,844 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 484 transitions. Word has length 68 [2024-11-28 04:00:06,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:06,845 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 484 transitions. [2024-11-28 04:00:06,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:06,845 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 484 transitions. [2024-11-28 04:00:06,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-28 04:00:06,846 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:06,846 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:06,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 04:00:06,846 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:06,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:06,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1123199734, now seen corresponding path program 1 times [2024-11-28 04:00:06,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:06,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755014731] [2024-11-28 04:00:06,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:06,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:06,996 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:00:06,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:06,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755014731] [2024-11-28 04:00:06,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755014731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:06,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:06,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:00:06,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492724764] [2024-11-28 04:00:06,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:06,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:00:06,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:06,999 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:00:07,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:00:07,000 INFO L87 Difference]: Start difference. First operand 345 states and 484 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:07,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:07,332 INFO L93 Difference]: Finished difference Result 361 states and 484 transitions. [2024-11-28 04:00:07,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:00:07,332 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-11-28 04:00:07,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:07,335 INFO L225 Difference]: With dead ends: 361 [2024-11-28 04:00:07,335 INFO L226 Difference]: Without dead ends: 360 [2024-11-28 04:00:07,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:00:07,336 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 200 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:07,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 350 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:00:07,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-28 04:00:07,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 345. [2024-11-28 04:00:07,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 257 states have (on average 1.5992217898832686) internal successors, (411), 306 states have internal predecessors, (411), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:00:07,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 483 transitions. [2024-11-28 04:00:07,385 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 483 transitions. Word has length 69 [2024-11-28 04:00:07,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:07,387 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 483 transitions. [2024-11-28 04:00:07,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:07,387 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 483 transitions. [2024-11-28 04:00:07,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 04:00:07,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:07,389 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:07,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 04:00:07,389 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:07,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:07,390 INFO L85 PathProgramCache]: Analyzing trace with hash 459453524, now seen corresponding path program 1 times [2024-11-28 04:00:07,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:07,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709044519] [2024-11-28 04:00:07,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:07,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:00:07,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:07,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709044519] [2024-11-28 04:00:07,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709044519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:07,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:07,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:00:07,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110620666] [2024-11-28 04:00:07,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:07,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:00:07,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:07,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:00:07,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:00:07,462 INFO L87 Difference]: Start difference. First operand 345 states and 483 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:07,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:07,647 INFO L93 Difference]: Finished difference Result 404 states and 515 transitions. [2024-11-28 04:00:07,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:00:07,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2024-11-28 04:00:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:07,650 INFO L225 Difference]: With dead ends: 404 [2024-11-28 04:00:07,650 INFO L226 Difference]: Without dead ends: 400 [2024-11-28 04:00:07,651 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 [2024-11-28 04:00:07,651 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 97 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:07,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 259 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:00:07,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-28 04:00:07,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 355. [2024-11-28 04:00:07,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 267 states have (on average 1.5805243445692885) internal successors, (422), 316 states have internal predecessors, (422), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:00:07,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 494 transitions. [2024-11-28 04:00:07,701 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 494 transitions. Word has length 70 [2024-11-28 04:00:07,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:07,702 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 494 transitions. [2024-11-28 04:00:07,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:07,702 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 494 transitions. [2024-11-28 04:00:07,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-28 04:00:07,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:07,703 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:07,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 04:00:07,703 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:07,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:07,703 INFO L85 PathProgramCache]: Analyzing trace with hash -86846964, now seen corresponding path program 1 times [2024-11-28 04:00:07,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:07,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467682288] [2024-11-28 04:00:07,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:07,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:07,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [903800346] [2024-11-28 04:00:07,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:07,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:07,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:07,725 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:07,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:00:07,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:07,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:00:07,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:08,043 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:00:08,044 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:08,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:08,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467682288] [2024-11-28 04:00:08,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:08,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903800346] [2024-11-28 04:00:08,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903800346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:08,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:08,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:00:08,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971990409] [2024-11-28 04:00:08,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:08,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:00:08,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:08,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:00:08,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:00:08,047 INFO L87 Difference]: Start difference. First operand 355 states and 494 transitions. Second operand has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:08,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:08,399 INFO L93 Difference]: Finished difference Result 383 states and 503 transitions. [2024-11-28 04:00:08,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:00:08,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 78 [2024-11-28 04:00:08,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:08,402 INFO L225 Difference]: With dead ends: 383 [2024-11-28 04:00:08,402 INFO L226 Difference]: Without dead ends: 380 [2024-11-28 04:00:08,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:00:08,406 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 71 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:08,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 358 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:00:08,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-28 04:00:08,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 355. [2024-11-28 04:00:08,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 267 states have (on average 1.5655430711610487) internal successors, (418), 316 states have internal predecessors, (418), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:00:08,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 490 transitions. [2024-11-28 04:00:08,468 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 490 transitions. Word has length 78 [2024-11-28 04:00:08,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:08,469 INFO L471 AbstractCegarLoop]: Abstraction has 355 states and 490 transitions. [2024-11-28 04:00:08,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.8) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 490 transitions. [2024-11-28 04:00:08,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 04:00:08,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:08,471 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:08,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:00:08,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 04:00:08,672 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:08,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:08,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1602711568, now seen corresponding path program 1 times [2024-11-28 04:00:08,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:08,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254404318] [2024-11-28 04:00:08,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:08,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:08,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1879206108] [2024-11-28 04:00:08,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:08,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:08,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:08,704 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:08,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:00:08,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:08,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:00:08,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:09,048 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:00:09,048 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:09,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:09,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254404318] [2024-11-28 04:00:09,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:09,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879206108] [2024-11-28 04:00:09,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879206108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:09,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:09,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:00:09,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928778302] [2024-11-28 04:00:09,314 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:09,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:00:09,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:09,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:00:09,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:00:09,315 INFO L87 Difference]: Start difference. First operand 355 states and 490 transitions. Second operand has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:09,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:09,594 INFO L93 Difference]: Finished difference Result 461 states and 601 transitions. [2024-11-28 04:00:09,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:00:09,594 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 79 [2024-11-28 04:00:09,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:09,597 INFO L225 Difference]: With dead ends: 461 [2024-11-28 04:00:09,597 INFO L226 Difference]: Without dead ends: 460 [2024-11-28 04:00:09,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:00:09,598 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 209 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:09,598 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 296 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:00:09,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-28 04:00:09,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 363. [2024-11-28 04:00:09,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 275 states have (on average 1.5527272727272727) internal successors, (427), 324 states have internal predecessors, (427), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:00:09,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 499 transitions. [2024-11-28 04:00:09,645 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 499 transitions. Word has length 79 [2024-11-28 04:00:09,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:09,645 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 499 transitions. [2024-11-28 04:00:09,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.0) internal successors, (45), 6 states have internal predecessors, (45), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:09,645 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 499 transitions. [2024-11-28 04:00:09,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:00:09,646 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:09,647 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:09,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:00:09,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:09,852 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:09,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:09,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1687437358, now seen corresponding path program 1 times [2024-11-28 04:00:09,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:09,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190130180] [2024-11-28 04:00:09,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:09,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:09,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009444335] [2024-11-28 04:00:09,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:09,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:09,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:09,885 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:09,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:00:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:09,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:00:09,952 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:10,308 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:00:10,309 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:10,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:10,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190130180] [2024-11-28 04:00:10,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:10,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009444335] [2024-11-28 04:00:10,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009444335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:10,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:00:10,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:00:10,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86496923] [2024-11-28 04:00:10,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:10,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:00:10,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:10,311 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:00:10,311 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:00:10,311 INFO L87 Difference]: Start difference. First operand 363 states and 499 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:10,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:10,839 INFO L93 Difference]: Finished difference Result 389 states and 507 transitions. [2024-11-28 04:00:10,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:00:10,840 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 81 [2024-11-28 04:00:10,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:10,842 INFO L225 Difference]: With dead ends: 389 [2024-11-28 04:00:10,842 INFO L226 Difference]: Without dead ends: 388 [2024-11-28 04:00:10,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:00:10,843 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 58 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:10,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 455 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:00:10,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-28 04:00:10,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 364. [2024-11-28 04:00:10,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 276 states have (on average 1.5507246376811594) internal successors, (428), 325 states have internal predecessors, (428), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:00:10,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 500 transitions. [2024-11-28 04:00:10,887 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 500 transitions. Word has length 81 [2024-11-28 04:00:10,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:10,887 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 500 transitions. [2024-11-28 04:00:10,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:00:10,887 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 500 transitions. [2024-11-28 04:00:10,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 04:00:10,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:10,888 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:10,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 04:00:11,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:11,089 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:11,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:11,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1870338534, now seen corresponding path program 1 times [2024-11-28 04:00:11,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:11,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167797403] [2024-11-28 04:00:11,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:11,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:11,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394408952] [2024-11-28 04:00:11,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:11,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:11,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:11,112 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:11,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:00:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:11,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:00:11,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:11,690 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:11,691 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:12,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:12,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167797403] [2024-11-28 04:00:12,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:12,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394408952] [2024-11-28 04:00:12,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394408952] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:12,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:12,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:00:12,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125537495] [2024-11-28 04:00:12,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:12,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:00:12,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:12,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:00:12,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:00:12,130 INFO L87 Difference]: Start difference. First operand 364 states and 500 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:13,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:13,733 INFO L93 Difference]: Finished difference Result 613 states and 856 transitions. [2024-11-28 04:00:13,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:00:13,733 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 83 [2024-11-28 04:00:13,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:13,739 INFO L225 Difference]: With dead ends: 613 [2024-11-28 04:00:13,739 INFO L226 Difference]: Without dead ends: 611 [2024-11-28 04:00:13,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:00:13,743 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 515 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:13,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 793 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:00:13,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-28 04:00:13,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 489. [2024-11-28 04:00:13,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 385 states have (on average 1.6337662337662338) internal successors, (629), 434 states have internal predecessors, (629), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:00:13,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 733 transitions. [2024-11-28 04:00:13,812 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 733 transitions. Word has length 83 [2024-11-28 04:00:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:13,812 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 733 transitions. [2024-11-28 04:00:13,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:13,813 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 733 transitions. [2024-11-28 04:00:13,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 04:00:13,813 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:13,814 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:13,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 04:00:14,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:14,018 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:14,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:14,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2145919873, now seen corresponding path program 1 times [2024-11-28 04:00:14,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:14,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058325977] [2024-11-28 04:00:14,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:14,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:14,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1876387854] [2024-11-28 04:00:14,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:14,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:14,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:14,045 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:14,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:00:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:14,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:00:14,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:14,657 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:14,657 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:15,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:15,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058325977] [2024-11-28 04:00:15,620 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:15,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876387854] [2024-11-28 04:00:15,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876387854] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:15,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:15,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:00:15,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185998876] [2024-11-28 04:00:15,621 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:15,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:00:15,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:15,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:00:15,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:00:15,623 INFO L87 Difference]: Start difference. First operand 489 states and 733 transitions. Second operand has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:17,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:17,034 INFO L93 Difference]: Finished difference Result 613 states and 851 transitions. [2024-11-28 04:00:17,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:00:17,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 84 [2024-11-28 04:00:17,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:17,037 INFO L225 Difference]: With dead ends: 613 [2024-11-28 04:00:17,037 INFO L226 Difference]: Without dead ends: 611 [2024-11-28 04:00:17,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:00:17,038 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 568 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:17,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 696 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:00:17,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2024-11-28 04:00:17,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 490. [2024-11-28 04:00:17,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 386 states have (on average 1.621761658031088) internal successors, (626), 435 states have internal predecessors, (626), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-28 04:00:17,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 730 transitions. [2024-11-28 04:00:17,092 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 730 transitions. Word has length 84 [2024-11-28 04:00:17,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:17,092 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 730 transitions. [2024-11-28 04:00:17,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.818181818181818) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:17,092 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 730 transitions. [2024-11-28 04:00:17,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 04:00:17,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:17,093 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:17,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 04:00:17,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:17,298 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:17,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:17,298 INFO L85 PathProgramCache]: Analyzing trace with hash 2145918571, now seen corresponding path program 1 times [2024-11-28 04:00:17,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:17,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218096489] [2024-11-28 04:00:17,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:17,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:17,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:17,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218096489] [2024-11-28 04:00:17,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218096489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:17,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158212705] [2024-11-28 04:00:17,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:17,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:17,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:17,606 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:17,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:00:17,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:17,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:00:17,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:17,939 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:18,268 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:18,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158212705] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:00:18,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:00:18,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 20 [2024-11-28 04:00:18,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004142817] [2024-11-28 04:00:18,269 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:18,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:00:18,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:18,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:00:18,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:00:18,271 INFO L87 Difference]: Start difference. First operand 490 states and 730 transitions. Second operand has 20 states, 20 states have (on average 5.35) internal successors, (107), 19 states have internal predecessors, (107), 7 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-28 04:00:20,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:20,107 INFO L93 Difference]: Finished difference Result 1002 states and 1383 transitions. [2024-11-28 04:00:20,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 04:00:20,108 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 19 states have internal predecessors, (107), 7 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) Word has length 84 [2024-11-28 04:00:20,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:20,109 INFO L225 Difference]: With dead ends: 1002 [2024-11-28 04:00:20,109 INFO L226 Difference]: Without dead ends: 600 [2024-11-28 04:00:20,110 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=611, Invalid=2145, Unknown=0, NotChecked=0, Total=2756 [2024-11-28 04:00:20,111 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 1341 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 1528 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:20,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1341 Valid, 710 Invalid, 1636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1528 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:00:20,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-28 04:00:20,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 487. [2024-11-28 04:00:20,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 387 states have (on average 1.5142118863049097) internal successors, (586), 436 states have internal predecessors, (586), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:00:20,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 682 transitions. [2024-11-28 04:00:20,168 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 682 transitions. Word has length 84 [2024-11-28 04:00:20,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:20,168 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 682 transitions. [2024-11-28 04:00:20,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.35) internal successors, (107), 19 states have internal predecessors, (107), 7 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (24), 7 states have call predecessors, (24), 7 states have call successors, (24) [2024-11-28 04:00:20,168 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 682 transitions. [2024-11-28 04:00:20,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:00:20,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:20,171 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:20,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 04:00:20,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 04:00:20,375 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:20,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:20,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2099006792, now seen corresponding path program 1 times [2024-11-28 04:00:20,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:20,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553398728] [2024-11-28 04:00:20,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:20,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:20,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [542378434] [2024-11-28 04:00:20,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:20,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:20,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:20,399 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:20,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:00:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:20,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:00:20,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:21,066 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:21,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:25,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:25,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553398728] [2024-11-28 04:00:25,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:25,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542378434] [2024-11-28 04:00:25,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542378434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:25,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:25,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:00:25,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305039219] [2024-11-28 04:00:25,587 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:25,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:00:25,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:25,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:00:25,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=277, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:00:25,589 INFO L87 Difference]: Start difference. First operand 487 states and 682 transitions. Second operand has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:26,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:26,840 INFO L93 Difference]: Finished difference Result 582 states and 787 transitions. [2024-11-28 04:00:26,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:00:26,841 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 85 [2024-11-28 04:00:26,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:26,843 INFO L225 Difference]: With dead ends: 582 [2024-11-28 04:00:26,843 INFO L226 Difference]: Without dead ends: 581 [2024-11-28 04:00:26,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=149, Invalid=606, Unknown=1, NotChecked=0, Total=756 [2024-11-28 04:00:26,845 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 499 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 503 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:26,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [503 Valid, 533 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:00:26,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-28 04:00:26,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 488. [2024-11-28 04:00:26,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 388 states have (on average 1.5128865979381443) internal successors, (587), 437 states have internal predecessors, (587), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:00:26,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 683 transitions. [2024-11-28 04:00:26,908 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 683 transitions. Word has length 85 [2024-11-28 04:00:26,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:26,909 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 683 transitions. [2024-11-28 04:00:26,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.5) internal successors, (54), 12 states have internal predecessors, (54), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:26,909 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 683 transitions. [2024-11-28 04:00:26,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:00:26,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:26,914 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:26,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 04:00:27,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 04:00:27,115 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:27,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:27,115 INFO L85 PathProgramCache]: Analyzing trace with hash 644701283, now seen corresponding path program 1 times [2024-11-28 04:00:27,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:27,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427962416] [2024-11-28 04:00:27,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:27,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:27,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315302417] [2024-11-28 04:00:27,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:27,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:27,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:27,134 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:27,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:00:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:27,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:00:27,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:27,804 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:28,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:28,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427962416] [2024-11-28 04:00:28,545 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:28,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315302417] [2024-11-28 04:00:28,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315302417] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:28,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:28,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:00:28,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144156684] [2024-11-28 04:00:28,545 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:28,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:00:28,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:28,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:00:28,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:00:28,546 INFO L87 Difference]: Start difference. First operand 488 states and 683 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:29,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:29,667 INFO L93 Difference]: Finished difference Result 584 states and 786 transitions. [2024-11-28 04:00:29,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:00:29,667 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-11-28 04:00:29,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:29,670 INFO L225 Difference]: With dead ends: 584 [2024-11-28 04:00:29,670 INFO L226 Difference]: Without dead ends: 583 [2024-11-28 04:00:29,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:00:29,670 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 527 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:29,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 485 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:00:29,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-28 04:00:29,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 489. [2024-11-28 04:00:29,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 389 states have (on average 1.5115681233933163) internal successors, (588), 438 states have internal predecessors, (588), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:00:29,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 684 transitions. [2024-11-28 04:00:29,730 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 684 transitions. Word has length 86 [2024-11-28 04:00:29,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:29,730 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 684 transitions. [2024-11-28 04:00:29,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:29,731 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 684 transitions. [2024-11-28 04:00:29,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 04:00:29,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:29,732 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:29,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-28 04:00:29,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-28 04:00:29,937 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:29,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:29,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1489096534, now seen corresponding path program 1 times [2024-11-28 04:00:29,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:29,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26927740] [2024-11-28 04:00:29,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:29,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:29,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [11911412] [2024-11-28 04:00:29,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:29,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:29,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:29,974 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:29,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:00:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:30,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:00:30,046 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:30,641 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:30,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:31,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:31,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26927740] [2024-11-28 04:00:31,173 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:31,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11911412] [2024-11-28 04:00:31,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11911412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:31,173 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:31,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:00:31,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768125497] [2024-11-28 04:00:31,173 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:31,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:00:31,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:31,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:00:31,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:00:31,175 INFO L87 Difference]: Start difference. First operand 489 states and 684 transitions. Second operand has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:32,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:32,397 INFO L93 Difference]: Finished difference Result 582 states and 785 transitions. [2024-11-28 04:00:32,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:00:32,398 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-11-28 04:00:32,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:32,401 INFO L225 Difference]: With dead ends: 582 [2024-11-28 04:00:32,401 INFO L226 Difference]: Without dead ends: 581 [2024-11-28 04:00:32,401 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:00:32,402 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 494 mSDsluCounter, 407 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:32,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 478 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:00:32,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-28 04:00:32,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 490. [2024-11-28 04:00:32,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 390 states have (on average 1.5102564102564102) internal successors, (589), 439 states have internal predecessors, (589), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:00:32,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 685 transitions. [2024-11-28 04:00:32,473 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 685 transitions. Word has length 87 [2024-11-28 04:00:32,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:32,474 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 685 transitions. [2024-11-28 04:00:32,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:32,474 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 685 transitions. [2024-11-28 04:00:32,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:00:32,476 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:32,476 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:32,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:00:32,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:32,677 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:32,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:32,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1082647877, now seen corresponding path program 1 times [2024-11-28 04:00:32,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:32,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070997750] [2024-11-28 04:00:32,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:32,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:32,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [184348775] [2024-11-28 04:00:32,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:32,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:32,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:32,708 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:32,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:00:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:32,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:00:32,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:33,377 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:33,378 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:38,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070997750] [2024-11-28 04:00:38,591 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184348775] [2024-11-28 04:00:38,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184348775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:38,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:38,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:00:38,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101737436] [2024-11-28 04:00:38,592 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:38,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:00:38,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:38,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:00:38,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=347, Unknown=1, NotChecked=0, Total=420 [2024-11-28 04:00:38,594 INFO L87 Difference]: Start difference. First operand 490 states and 685 transitions. Second operand has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:39,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:39,900 INFO L93 Difference]: Finished difference Result 582 states and 784 transitions. [2024-11-28 04:00:39,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:00:39,900 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 88 [2024-11-28 04:00:39,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:39,903 INFO L225 Difference]: With dead ends: 582 [2024-11-28 04:00:39,903 INFO L226 Difference]: Without dead ends: 581 [2024-11-28 04:00:39,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=166, Invalid=763, Unknown=1, NotChecked=0, Total=930 [2024-11-28 04:00:39,904 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 497 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1255 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:39,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 587 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1255 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:00:39,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-11-28 04:00:39,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 491. [2024-11-28 04:00:39,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 391 states have (on average 1.5089514066496164) internal successors, (590), 440 states have internal predecessors, (590), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:00:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 686 transitions. [2024-11-28 04:00:39,978 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 686 transitions. Word has length 88 [2024-11-28 04:00:39,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:39,979 INFO L471 AbstractCegarLoop]: Abstraction has 491 states and 686 transitions. [2024-11-28 04:00:39,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:39,979 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 686 transitions. [2024-11-28 04:00:39,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 04:00:39,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:39,981 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:39,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-28 04:00:40,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 04:00:40,186 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:40,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:40,186 INFO L85 PathProgramCache]: Analyzing trace with hash -797654004, now seen corresponding path program 1 times [2024-11-28 04:00:40,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:40,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414146868] [2024-11-28 04:00:40,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:40,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:40,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922846373] [2024-11-28 04:00:40,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:40,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:40,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:40,215 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:40,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:00:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:40,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:00:40,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:40,710 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:40,711 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:40,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:40,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414146868] [2024-11-28 04:00:40,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:40,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922846373] [2024-11-28 04:00:40,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922846373] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:40,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:40,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:00:40,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544562777] [2024-11-28 04:00:40,889 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:40,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:00:40,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:40,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:00:40,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:00:40,891 INFO L87 Difference]: Start difference. First operand 491 states and 686 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:41,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:41,539 INFO L93 Difference]: Finished difference Result 537 states and 716 transitions. [2024-11-28 04:00:41,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:00:41,540 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 89 [2024-11-28 04:00:41,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:41,542 INFO L225 Difference]: With dead ends: 537 [2024-11-28 04:00:41,542 INFO L226 Difference]: Without dead ends: 536 [2024-11-28 04:00:41,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:00:41,543 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 260 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:41,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 546 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:00:41,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-28 04:00:41,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 499. [2024-11-28 04:00:41,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 399 states have (on average 1.5137844611528821) internal successors, (604), 448 states have internal predecessors, (604), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:00:41,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 700 transitions. [2024-11-28 04:00:41,614 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 700 transitions. Word has length 89 [2024-11-28 04:00:41,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:41,615 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 700 transitions. [2024-11-28 04:00:41,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:41,615 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 700 transitions. [2024-11-28 04:00:41,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:00:41,616 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:41,616 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:41,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 04:00:41,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 04:00:41,816 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:41,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:41,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1042529831, now seen corresponding path program 1 times [2024-11-28 04:00:41,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:41,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975790589] [2024-11-28 04:00:41,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:41,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:41,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [127374072] [2024-11-28 04:00:41,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:41,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:41,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:41,837 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:41,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:00:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:41,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:00:41,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:42,315 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:42,316 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:42,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:42,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975790589] [2024-11-28 04:00:42,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:42,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127374072] [2024-11-28 04:00:42,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127374072] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:42,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:42,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:00:42,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873938623] [2024-11-28 04:00:42,681 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:42,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:00:42,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:42,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:00:42,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:00:42,682 INFO L87 Difference]: Start difference. First operand 499 states and 700 transitions. Second operand has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:43,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:43,317 INFO L93 Difference]: Finished difference Result 537 states and 715 transitions. [2024-11-28 04:00:43,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:00:43,318 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 90 [2024-11-28 04:00:43,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:43,320 INFO L225 Difference]: With dead ends: 537 [2024-11-28 04:00:43,321 INFO L226 Difference]: Without dead ends: 536 [2024-11-28 04:00:43,321 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:00:43,321 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 306 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:43,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 512 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:00:43,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-28 04:00:43,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 500. [2024-11-28 04:00:43,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 400 states have (on average 1.5125) internal successors, (605), 449 states have internal predecessors, (605), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:00:43,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 701 transitions. [2024-11-28 04:00:43,399 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 701 transitions. Word has length 90 [2024-11-28 04:00:43,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:43,399 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 701 transitions. [2024-11-28 04:00:43,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:43,399 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 701 transitions. [2024-11-28 04:00:43,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 04:00:43,400 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:43,400 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:43,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 04:00:43,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 04:00:43,604 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:43,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:43,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2041313426, now seen corresponding path program 1 times [2024-11-28 04:00:43,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:43,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200304612] [2024-11-28 04:00:43,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:43,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:43,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777766275] [2024-11-28 04:00:43,622 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:43,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:43,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:43,625 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:43,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:00:43,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:43,693 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:00:43,695 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:44,224 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:44,224 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:44,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:44,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200304612] [2024-11-28 04:00:44,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:44,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777766275] [2024-11-28 04:00:44,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777766275] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:44,889 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:44,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:00:44,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992090513] [2024-11-28 04:00:44,889 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:44,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:00:44,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:44,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:00:44,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:00:44,891 INFO L87 Difference]: Start difference. First operand 500 states and 701 transitions. Second operand has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:45,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:45,743 INFO L93 Difference]: Finished difference Result 537 states and 714 transitions. [2024-11-28 04:00:45,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:00:45,744 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2024-11-28 04:00:45,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:45,746 INFO L225 Difference]: With dead ends: 537 [2024-11-28 04:00:45,746 INFO L226 Difference]: Without dead ends: 536 [2024-11-28 04:00:45,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:00:45,747 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 267 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:45,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 535 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:00:45,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-28 04:00:45,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 501. [2024-11-28 04:00:45,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 401 states have (on average 1.5112219451371571) internal successors, (606), 450 states have internal predecessors, (606), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:00:45,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 702 transitions. [2024-11-28 04:00:45,804 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 702 transitions. Word has length 91 [2024-11-28 04:00:45,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:45,805 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 702 transitions. [2024-11-28 04:00:45,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.666666666666667) internal successors, (60), 9 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:45,805 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 702 transitions. [2024-11-28 04:00:45,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 04:00:45,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:45,806 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:45,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 04:00:46,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:46,010 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:46,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:46,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1143793417, now seen corresponding path program 1 times [2024-11-28 04:00:46,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:46,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673405753] [2024-11-28 04:00:46,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:46,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:46,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1770151006] [2024-11-28 04:00:46,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:46,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:46,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:46,037 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:46,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:00:46,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:46,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 04:00:46,119 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:47,467 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:53,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:53,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673405753] [2024-11-28 04:00:53,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:00:53,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770151006] [2024-11-28 04:00:53,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770151006] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:53,118 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:53,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:00:53,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940486295] [2024-11-28 04:00:53,118 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:53,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:00:53,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:53,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:00:53,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=350, Unknown=1, NotChecked=0, Total=420 [2024-11-28 04:00:53,120 INFO L87 Difference]: Start difference. First operand 501 states and 702 transitions. Second operand has 14 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:54,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:54,400 INFO L93 Difference]: Finished difference Result 588 states and 796 transitions. [2024-11-28 04:00:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:00:54,401 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 92 [2024-11-28 04:00:54,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:54,403 INFO L225 Difference]: With dead ends: 588 [2024-11-28 04:00:54,403 INFO L226 Difference]: Without dead ends: 587 [2024-11-28 04:00:54,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=104, Invalid=495, Unknown=1, NotChecked=0, Total=600 [2024-11-28 04:00:54,404 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 358 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 366 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:54,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [366 Valid, 422 Invalid, 1154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:00:54,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-11-28 04:00:54,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 505. [2024-11-28 04:00:54,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 405 states have (on average 1.5061728395061729) internal successors, (610), 454 states have internal predecessors, (610), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:00:54,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 706 transitions. [2024-11-28 04:00:54,465 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 706 transitions. Word has length 92 [2024-11-28 04:00:54,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:54,465 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 706 transitions. [2024-11-28 04:00:54,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:00:54,466 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 706 transitions. [2024-11-28 04:00:54,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 04:00:54,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:54,467 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:54,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 04:00:54,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-28 04:00:54,671 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:00:54,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:54,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1097857744, now seen corresponding path program 1 times [2024-11-28 04:00:54,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:54,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301151919] [2024-11-28 04:00:54,672 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:54,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:00:54,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490425168] [2024-11-28 04:00:54,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:54,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:54,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:54,696 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:54,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:00:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:54,766 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:00:54,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:55,582 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:00:55,582 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:03,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:03,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301151919] [2024-11-28 04:01:03,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:03,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490425168] [2024-11-28 04:01:03,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490425168] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:03,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:03,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:01:03,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716475411] [2024-11-28 04:01:03,254 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:03,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:01:03,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:03,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:01:03,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=210, Unknown=2, NotChecked=0, Total=272 [2024-11-28 04:01:03,255 INFO L87 Difference]: Start difference. First operand 505 states and 706 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:01:04,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:04,323 INFO L93 Difference]: Finished difference Result 592 states and 797 transitions. [2024-11-28 04:01:04,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:01:04,323 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-28 04:01:04,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:04,325 INFO L225 Difference]: With dead ends: 592 [2024-11-28 04:01:04,325 INFO L226 Difference]: Without dead ends: 591 [2024-11-28 04:01:04,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=116, Invalid=344, Unknown=2, NotChecked=0, Total=462 [2024-11-28 04:01:04,327 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 281 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:04,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 593 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:01:04,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-11-28 04:01:04,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 506. [2024-11-28 04:01:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 406 states have (on average 1.5049261083743843) internal successors, (611), 455 states have internal predecessors, (611), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-28 04:01:04,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 707 transitions. [2024-11-28 04:01:04,384 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 707 transitions. Word has length 93 [2024-11-28 04:01:04,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:04,384 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 707 transitions. [2024-11-28 04:01:04,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 11 states have internal predecessors, (62), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:01:04,384 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 707 transitions. [2024-11-28 04:01:04,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 04:01:04,385 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:04,385 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:04,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-28 04:01:04,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-28 04:01:04,589 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:01:04,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:04,590 INFO L85 PathProgramCache]: Analyzing trace with hash -921185800, now seen corresponding path program 1 times [2024-11-28 04:01:04,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:04,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084349567] [2024-11-28 04:01:04,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:04,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:04,675 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 04:01:04,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:04,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084349567] [2024-11-28 04:01:04,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084349567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:04,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:04,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:01:04,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940092233] [2024-11-28 04:01:04,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:04,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:01:04,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:04,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:01:04,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:01:04,678 INFO L87 Difference]: Start difference. First operand 506 states and 707 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:01:04,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:04,966 INFO L93 Difference]: Finished difference Result 551 states and 714 transitions. [2024-11-28 04:01:04,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:01:04,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 95 [2024-11-28 04:01:04,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:04,969 INFO L225 Difference]: With dead ends: 551 [2024-11-28 04:01:04,969 INFO L226 Difference]: Without dead ends: 439 [2024-11-28 04:01:04,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:01:04,970 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 23 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:04,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 413 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:01:04,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-28 04:01:05,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 420. [2024-11-28 04:01:05,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 332 states have (on average 1.5030120481927711) internal successors, (499), 381 states have internal predecessors, (499), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:01:05,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 571 transitions. [2024-11-28 04:01:05,009 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 571 transitions. Word has length 95 [2024-11-28 04:01:05,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:05,009 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 571 transitions. [2024-11-28 04:01:05,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 04:01:05,010 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 571 transitions. [2024-11-28 04:01:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 04:01:05,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:05,010 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:05,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-28 04:01:05,011 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:01:05,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:05,011 INFO L85 PathProgramCache]: Analyzing trace with hash -326148117, now seen corresponding path program 1 times [2024-11-28 04:01:05,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:05,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548016327] [2024-11-28 04:01:05,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:05,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:01:05,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2011732155] [2024-11-28 04:01:05,028 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:05,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:05,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:05,032 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:05,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:01:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:05,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:01:05,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:05,913 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:01:05,913 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:06,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:06,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548016327] [2024-11-28 04:01:06,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:06,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011732155] [2024-11-28 04:01:06,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011732155] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:06,680 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:06,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:01:06,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488738355] [2024-11-28 04:01:06,681 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:06,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:01:06,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:06,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:01:06,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:01:06,682 INFO L87 Difference]: Start difference. First operand 420 states and 571 transitions. Second operand has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:01:07,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:07,672 INFO L93 Difference]: Finished difference Result 441 states and 583 transitions. [2024-11-28 04:01:07,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:01:07,673 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 94 [2024-11-28 04:01:07,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:07,674 INFO L225 Difference]: With dead ends: 441 [2024-11-28 04:01:07,674 INFO L226 Difference]: Without dead ends: 440 [2024-11-28 04:01:07,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=323, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:01:07,675 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 274 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:07,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 458 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:01:07,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-28 04:01:07,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 421. [2024-11-28 04:01:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 333 states have (on average 1.5015015015015014) internal successors, (500), 382 states have internal predecessors, (500), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:01:07,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 572 transitions. [2024-11-28 04:01:07,718 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 572 transitions. Word has length 94 [2024-11-28 04:01:07,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:07,719 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 572 transitions. [2024-11-28 04:01:07,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:01:07,719 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 572 transitions. [2024-11-28 04:01:07,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 04:01:07,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:07,720 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:07,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-28 04:01:07,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 04:01:07,921 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:01:07,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:07,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1520656846, now seen corresponding path program 1 times [2024-11-28 04:01:07,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:07,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791278210] [2024-11-28 04:01:07,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:07,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:01:07,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1014149170] [2024-11-28 04:01:07,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:07,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:07,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:07,939 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:07,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:01:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:08,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:01:08,012 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:01:08,875 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:22,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:22,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791278210] [2024-11-28 04:01:22,037 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:22,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014149170] [2024-11-28 04:01:22,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014149170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:22,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:22,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:01:22,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127994463] [2024-11-28 04:01:22,037 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:22,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:01:22,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:22,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:01:22,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=281, Unknown=3, NotChecked=0, Total=342 [2024-11-28 04:01:22,038 INFO L87 Difference]: Start difference. First operand 421 states and 572 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:01:23,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:23,017 INFO L93 Difference]: Finished difference Result 441 states and 582 transitions. [2024-11-28 04:01:23,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:01:23,018 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 95 [2024-11-28 04:01:23,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:23,020 INFO L225 Difference]: With dead ends: 441 [2024-11-28 04:01:23,020 INFO L226 Difference]: Without dead ends: 440 [2024-11-28 04:01:23,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 12.8s TimeCoverageRelationStatistics Valid=95, Invalid=408, Unknown=3, NotChecked=0, Total=506 [2024-11-28 04:01:23,020 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 276 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:23,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 457 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:01:23,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-28 04:01:23,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 422. [2024-11-28 04:01:23,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 334 states have (on average 1.5) internal successors, (501), 383 states have internal predecessors, (501), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:01:23,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 573 transitions. [2024-11-28 04:01:23,069 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 573 transitions. Word has length 95 [2024-11-28 04:01:23,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:23,070 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 573 transitions. [2024-11-28 04:01:23,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:01:23,070 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 573 transitions. [2024-11-28 04:01:23,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 04:01:23,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:23,071 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:23,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-28 04:01:23,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:23,271 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:01:23,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:23,272 INFO L85 PathProgramCache]: Analyzing trace with hash 104278221, now seen corresponding path program 1 times [2024-11-28 04:01:23,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:23,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947995805] [2024-11-28 04:01:23,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:23,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:01:23,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938826120] [2024-11-28 04:01:23,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:23,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:23,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:23,295 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:23,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:01:23,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:23,369 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-28 04:01:23,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:25,567 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 04:01:25,567 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:36,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:36,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947995805] [2024-11-28 04:01:36,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:01:36,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938826120] [2024-11-28 04:01:36,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938826120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:36,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:01:36,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:01:36,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802385818] [2024-11-28 04:01:36,812 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:36,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:01:36,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:36,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:01:36,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=424, Unknown=2, NotChecked=0, Total=506 [2024-11-28 04:01:36,813 INFO L87 Difference]: Start difference. First operand 422 states and 573 transitions. Second operand has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:01:38,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:38,773 INFO L93 Difference]: Finished difference Result 437 states and 577 transitions. [2024-11-28 04:01:38,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:01:38,774 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 96 [2024-11-28 04:01:38,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:38,775 INFO L225 Difference]: With dead ends: 437 [2024-11-28 04:01:38,776 INFO L226 Difference]: Without dead ends: 407 [2024-11-28 04:01:38,776 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=127, Invalid=627, Unknown=2, NotChecked=0, Total=756 [2024-11-28 04:01:38,777 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 298 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:38,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 330 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:01:38,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-28 04:01:38,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 394. [2024-11-28 04:01:38,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 306 states have (on average 1.542483660130719) internal successors, (472), 355 states have internal predecessors, (472), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-28 04:01:38,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 544 transitions. [2024-11-28 04:01:38,821 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 544 transitions. Word has length 96 [2024-11-28 04:01:38,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:38,821 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 544 transitions. [2024-11-28 04:01:38,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 14 states have internal predecessors, (65), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 04:01:38,822 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 544 transitions. [2024-11-28 04:01:38,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 04:01:38,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:38,822 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:38,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-28 04:01:39,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-28 04:01:39,023 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 47 more)] === [2024-11-28 04:01:39,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:39,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1434229875, now seen corresponding path program 1 times [2024-11-28 04:01:39,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:39,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845740586] [2024-11-28 04:01:39,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:39,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:39,314 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 04:01:39,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:39,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845740586] [2024-11-28 04:01:39,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845740586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:39,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305394048] [2024-11-28 04:01:39,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:39,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:39,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:39,318 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:39,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:01:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:39,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:01:39,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:39,752 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 74 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 04:01:39,752 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:40,148 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 26 proven. 6 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 04:01:40,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305394048] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:40,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:40,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2024-11-28 04:01:40,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481611647] [2024-11-28 04:01:40,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:40,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:01:40,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:40,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:01:40,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:01:40,149 INFO L87 Difference]: Start difference. First operand 394 states and 544 transitions. Second operand has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 14 states have internal predecessors, (89), 6 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (23), 8 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-28 04:01:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:40,444 INFO L93 Difference]: Finished difference Result 398 states and 547 transitions. [2024-11-28 04:01:40,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:01:40,444 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 14 states have internal predecessors, (89), 6 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (23), 8 states have call predecessors, (23), 6 states have call successors, (23) Word has length 103 [2024-11-28 04:01:40,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:40,445 INFO L225 Difference]: With dead ends: 398 [2024-11-28 04:01:40,445 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:01:40,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 197 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:01:40,446 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 135 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:40,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 152 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:01:40,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:01:40,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:01:40,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:01:40,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2024-11-28 04:01:40,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:40,447 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:01:40,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.235294117647059) internal successors, (89), 14 states have internal predecessors, (89), 6 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (23), 8 states have call predecessors, (23), 6 states have call successors, (23) [2024-11-28 04:01:40,447 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:01:40,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:01:40,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 50 remaining) [2024-11-28 04:01:40,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 50 remaining) [2024-11-28 04:01:40,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 50 remaining) [2024-11-28 04:01:40,450 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 50 remaining) [2024-11-28 04:01:40,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 50 remaining) [2024-11-28 04:01:40,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 50 remaining) [2024-11-28 04:01:40,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 50 remaining) [2024-11-28 04:01:40,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 50 remaining) [2024-11-28 04:01:40,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 50 remaining) [2024-11-28 04:01:40,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 50 remaining) [2024-11-28 04:01:40,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 50 remaining) [2024-11-28 04:01:40,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 50 remaining) [2024-11-28 04:01:40,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 50 remaining) [2024-11-28 04:01:40,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 50 remaining) [2024-11-28 04:01:40,451 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 50 remaining) [2024-11-28 04:01:40,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 50 remaining) [2024-11-28 04:01:40,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 50 remaining) [2024-11-28 04:01:40,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 50 remaining) [2024-11-28 04:01:40,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 50 remaining) [2024-11-28 04:01:40,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 50 remaining) [2024-11-28 04:01:40,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 50 remaining) [2024-11-28 04:01:40,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 50 remaining) [2024-11-28 04:01:40,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 50 remaining) [2024-11-28 04:01:40,452 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 50 remaining) [2024-11-28 04:01:40,453 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 50 remaining) [2024-11-28 04:01:40,454 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 50 remaining) [2024-11-28 04:01:40,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-28 04:01:40,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-28 04:01:40,662 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:40,665 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:01:41,601 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:01:41,636 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:01:41 BoogieIcfgContainer [2024-11-28 04:01:41,636 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:01:41,637 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:01:41,637 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:01:41,637 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:01:41,638 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:59:45" (3/4) ... [2024-11-28 04:01:41,641 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:01:41,649 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 04:01:41,649 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-28 04:01:41,656 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-28 04:01:41,656 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-28 04:01:41,657 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:01:41,657 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:01:41,771 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:01:41,772 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:01:41,772 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:01:41,774 INFO L158 Benchmark]: Toolchain (without parser) took 118080.69ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 92.8MB in the beginning and 108.3MB in the end (delta: -15.5MB). Peak memory consumption was 82.3MB. Max. memory is 16.1GB. [2024-11-28 04:01:41,775 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:01:41,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.43ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:01:41,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.94ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:01:41,775 INFO L158 Benchmark]: Boogie Preprocessor took 66.41ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:01:41,776 INFO L158 Benchmark]: RCFGBuilder took 862.29ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 57.8MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:01:41,776 INFO L158 Benchmark]: TraceAbstraction took 116587.75ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 57.3MB in the beginning and 112.9MB in the end (delta: -55.6MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. [2024-11-28 04:01:41,776 INFO L158 Benchmark]: Witness Printer took 135.62ms. Allocated memory is still 218.1MB. Free memory was 112.9MB in the beginning and 108.3MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:01:41,777 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.43ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.2MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.94ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.7MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.41ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 862.29ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 57.8MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 116587.75ms. Allocated memory was 117.4MB in the beginning and 218.1MB in the end (delta: 100.7MB). Free memory was 57.3MB in the beginning and 112.9MB in the end (delta: -55.6MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. * Witness Printer took 135.62ms. Allocated memory is still 218.1MB. Free memory was 112.9MB in the beginning and 108.3MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 69]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 131 locations, 50 error locations. Started 1 CEGAR loops. OverallTime: 115.5s, OverallIterations: 48, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14014 SdHoareTripleChecker+Valid, 24.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13788 mSDsluCounter, 18171 SdHoareTripleChecker+Invalid, 21.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13583 mSDsCounter, 1024 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21352 IncrementalHoareTripleChecker+Invalid, 22376 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1024 mSolverCounterUnsat, 4588 mSDtfsCounter, 21352 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3355 GetRequests, 2779 SyntacticMatches, 4 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2016 ImplicationChecksByTransitivity, 52.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=506occurred in iteration=43, InterpolantAutomatonStates: 444, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.9s AutomataMinimizationTime, 48 MinimizatonAttempts, 2474 StatesRemovedByMinimization, 46 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 70.8s InterpolantComputationTime, 5403 NumberOfCodeBlocks, 5403 NumberOfCodeBlocksAsserted, 87 NumberOfCheckSat, 3628 ConstructedInterpolants, 0 QuantifiedInterpolants, 19703 SizeOfPredicates, 70 NumberOfNonLiveVariables, 5445 ConjunctsInSsa, 430 ConjunctsInUnsatCore, 62 InterpolantComputations, 29 PerfectInterpolantSequences, 2332/2567 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 50 specifications checked. All of them hold - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (((((((((((c == 0) && (k == 1)) && (b == 1)) && (p == 1)) && (a == 1)) && (x == 1)) && (r == 0)) && (q == 0)) && (y == 1)) && (s == 1)) || ((((((((((((b == 1) && (p == 1)) && (c <= 1)) && (y <= x)) && (r == 0)) && (q == 0)) && (y == 1)) && (k == 0)) && (x <= 1)) && (b <= c)) && (a == x)) && (s == 1))) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (((((((((((((d == 1) && (p == 1)) && (c == 1)) && (b <= y)) && (v == 1)) && (v <= b)) && (a == 1)) && (x == 1)) && (r == 0)) && (q == 0)) && (y == 1)) && (k == 0)) && (s == 1)) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((((((((p == 0) && (a <= 1)) && (b == 0)) && (x == 1)) && (q == 1)) && (y == 1)) && (a != 0)) && (r == 1)) && (((__int128) s + 1) == 0)) || ((((((((b == 1) && (p == 1)) && (a == 1)) && (x == 1)) && (r == 0)) && (q == 0)) && (y == 1)) && (s == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-28 04:01:41,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_330c4073-2d9d-4fe9-8572-176e4a80649f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE