./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound50.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_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/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_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/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_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/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 cb55eb0e5d7c4df3b95a55b83f19894edf68e79ccb0eab5e69a8aa23c994caed --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:31:57,064 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:31:57,162 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:31:57,169 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:31:57,169 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:31:57,218 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:31:57,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:31:57,221 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:31:57,222 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:31:57,222 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:31:57,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:31:57,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:31:57,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:31:57,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:31:57,224 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:31:57,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:31:57,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:31:57,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:31:57,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:31:57,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:31:57,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:31:57,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:31:57,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:31:57,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:31:57,227 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:31:57,227 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:31:57,227 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:31:57,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:31:57,228 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:31:57,228 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:31:57,228 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:31:57,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:31:57,229 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:31:57,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:31:57,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:31:57,229 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:31:57,229 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:31:57,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:31:57,230 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:31:57,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:31:57,230 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:31:57,230 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:31:57,230 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:31:57,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:31:57,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:31:57,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:31:57,231 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:31:57,231 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:31:57,231 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:31:57,231 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:31:57,231 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_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/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 -> cb55eb0e5d7c4df3b95a55b83f19894edf68e79ccb0eab5e69a8aa23c994caed [2024-11-27 20:31:57,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:31:57,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:31:57,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:31:57,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:31:57,660 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:31:57,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound50.c [2024-11-27 20:32:01,055 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/data/b1824e771/9f5994d8b22d4e62bcb7bbe2f3804b85/FLAG8c87614cc [2024-11-27 20:32:01,414 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:32:01,414 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/sv-benchmarks/c/nla-digbench-scaling/cohencu-ll_unwindbound50.c [2024-11-27 20:32:01,423 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/data/b1824e771/9f5994d8b22d4e62bcb7bbe2f3804b85/FLAG8c87614cc [2024-11-27 20:32:01,641 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/data/b1824e771/9f5994d8b22d4e62bcb7bbe2f3804b85 [2024-11-27 20:32:01,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:32:01,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:32:01,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:32:01,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:32:01,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:32:01,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:32:01" (1/1) ... [2024-11-27 20:32:01,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d653bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:01, skipping insertion in model container [2024-11-27 20:32:01,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:32:01" (1/1) ... [2024-11-27 20:32:01,685 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:32:01,943 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:32:01,953 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:32:01,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:32:02,002 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:32:02,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02 WrapperNode [2024-11-27 20:32:02,003 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:32:02,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:32:02,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:32:02,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:32:02,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,086 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 194 [2024-11-27 20:32:02,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:32:02,090 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:32:02,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:32:02,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:32:02,107 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,110 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,139 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 20:32:02,143 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,144 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,153 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,163 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:32:02,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:32:02,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:32:02,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:32:02,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (1/1) ... [2024-11-27 20:32:02,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:32:02,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:02,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:32:02,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:32:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:32:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:32:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:32:02,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:32:02,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:32:02,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:32:02,336 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:32:02,339 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:32:03,478 INFO L? ?]: Removed 239 outVars from TransFormulas that were not future-live. [2024-11-27 20:32:03,479 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:32:03,503 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:32:03,503 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:32:03,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:32:03 BoogieIcfgContainer [2024-11-27 20:32:03,503 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:32:03,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:32:03,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:32:03,513 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:32:03,513 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:32:01" (1/3) ... [2024-11-27 20:32:03,514 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ed64ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:32:03, skipping insertion in model container [2024-11-27 20:32:03,514 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:32:02" (2/3) ... [2024-11-27 20:32:03,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ed64ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:32:03, skipping insertion in model container [2024-11-27 20:32:03,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:32:03" (3/3) ... [2024-11-27 20:32:03,516 INFO L128 eAbstractionObserver]: Analyzing ICFG cohencu-ll_unwindbound50.c [2024-11-27 20:32:03,561 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:32:03,563 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cohencu-ll_unwindbound50.c that has 2 procedures, 306 locations, 1 initial locations, 1 loop locations, and 140 error locations. [2024-11-27 20:32:03,663 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:32:03,686 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;@860fc12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:32:03,686 INFO L334 AbstractCegarLoop]: Starting to check reachability of 140 error locations. [2024-11-27 20:32:03,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 306 states, 153 states have (on average 1.9411764705882353) internal successors, (297), 293 states have internal predecessors, (297), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 20:32:03,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-27 20:32:03,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:03,699 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-27 20:32:03,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:03,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:03,706 INFO L85 PathProgramCache]: Analyzing trace with hash 925636, now seen corresponding path program 1 times [2024-11-27 20:32:03,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:03,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546709856] [2024-11-27 20:32:03,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:03,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:03,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:03,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546709856] [2024-11-27 20:32:04,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546709856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:04,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:04,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:04,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707819858] [2024-11-27 20:32:04,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:04,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:32:04,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:04,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:32:04,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:04,041 INFO L87 Difference]: Start difference. First operand has 306 states, 153 states have (on average 1.9411764705882353) internal successors, (297), 293 states have internal predecessors, (297), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-27 20:32:04,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:04,211 INFO L93 Difference]: Finished difference Result 601 states and 646 transitions. [2024-11-27 20:32:04,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:32:04,216 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-27 20:32:04,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:04,225 INFO L225 Difference]: With dead ends: 601 [2024-11-27 20:32:04,225 INFO L226 Difference]: Without dead ends: 291 [2024-11-27 20:32:04,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:32:04,233 INFO L435 NwaCegarLoop]: 302 mSDtfsCounter, 307 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:04,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 602 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:32:04,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-27 20:32:04,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-11-27 20:32:04,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 148 states have (on average 1.8986486486486487) internal successors, (281), 279 states have internal predecessors, (281), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:32:04,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 301 transitions. [2024-11-27 20:32:04,329 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 301 transitions. Word has length 4 [2024-11-27 20:32:04,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:04,329 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 301 transitions. [2024-11-27 20:32:04,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-27 20:32:04,330 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 301 transitions. [2024-11-27 20:32:04,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 20:32:04,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:04,332 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 20:32:04,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:32:04,332 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:04,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:04,333 INFO L85 PathProgramCache]: Analyzing trace with hash 28694756, now seen corresponding path program 1 times [2024-11-27 20:32:04,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:04,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101351204] [2024-11-27 20:32:04,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:04,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:04,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:04,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:04,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101351204] [2024-11-27 20:32:04,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101351204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:04,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:04,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:04,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191751818] [2024-11-27 20:32:04,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:04,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:32:04,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:04,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:32:04,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:04,448 INFO L87 Difference]: Start difference. First operand 291 states and 301 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:04,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:04,541 INFO L93 Difference]: Finished difference Result 471 states and 485 transitions. [2024-11-27 20:32:04,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:32:04,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-27 20:32:04,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:04,544 INFO L225 Difference]: With dead ends: 471 [2024-11-27 20:32:04,544 INFO L226 Difference]: Without dead ends: 295 [2024-11-27 20:32:04,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:32:04,550 INFO L435 NwaCegarLoop]: 297 mSDtfsCounter, 3 mSDsluCounter, 590 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 887 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:04,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 887 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:32:04,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-27 20:32:04,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2024-11-27 20:32:04,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 152 states have (on average 1.875) internal successors, (285), 283 states have internal predecessors, (285), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 20:32:04,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 305 transitions. [2024-11-27 20:32:04,584 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 305 transitions. Word has length 5 [2024-11-27 20:32:04,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:04,584 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 305 transitions. [2024-11-27 20:32:04,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:04,585 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 305 transitions. [2024-11-27 20:32:04,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-27 20:32:04,585 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:04,585 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:04,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:32:04,588 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:04,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:04,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1805858121, now seen corresponding path program 1 times [2024-11-27 20:32:04,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:04,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865541539] [2024-11-27 20:32:04,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:04,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:04,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:32:04,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:04,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865541539] [2024-11-27 20:32:04,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865541539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:04,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:04,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:04,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668522484] [2024-11-27 20:32:04,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:04,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:04,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:04,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:04,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:04,687 INFO L87 Difference]: Start difference. First operand 295 states and 305 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:04,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:04,907 INFO L93 Difference]: Finished difference Result 563 states and 583 transitions. [2024-11-27 20:32:04,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:04,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-27 20:32:04,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:04,911 INFO L225 Difference]: With dead ends: 563 [2024-11-27 20:32:04,912 INFO L226 Difference]: Without dead ends: 543 [2024-11-27 20:32:04,912 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 [2024-11-27 20:32:04,914 INFO L435 NwaCegarLoop]: 341 mSDtfsCounter, 237 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:04,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 596 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:32:04,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-27 20:32:04,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 353. [2024-11-27 20:32:04,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 205 states have (on average 1.7853658536585366) internal successors, (366), 336 states have internal predecessors, (366), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:32:04,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 396 transitions. [2024-11-27 20:32:04,945 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 396 transitions. Word has length 7 [2024-11-27 20:32:04,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:04,946 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 396 transitions. [2024-11-27 20:32:04,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:32:04,946 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 396 transitions. [2024-11-27 20:32:04,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 20:32:04,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:04,948 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:04,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:32:04,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:04,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:04,949 INFO L85 PathProgramCache]: Analyzing trace with hash -633270809, now seen corresponding path program 1 times [2024-11-27 20:32:04,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:04,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824758175] [2024-11-27 20:32:04,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:04,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:05,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [393690251] [2024-11-27 20:32:05,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:05,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:05,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:05,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:05,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:32:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:05,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:32:05,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:05,466 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:32:05,466 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:32:05,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:05,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824758175] [2024-11-27 20:32:05,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:05,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393690251] [2024-11-27 20:32:05,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393690251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:05,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:05,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:05,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886572867] [2024-11-27 20:32:05,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:05,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:05,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:05,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:05,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:05,471 INFO L87 Difference]: Start difference. First operand 353 states and 396 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:06,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:06,342 INFO L93 Difference]: Finished difference Result 513 states and 571 transitions. [2024-11-27 20:32:06,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:06,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-11-27 20:32:06,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:06,345 INFO L225 Difference]: With dead ends: 513 [2024-11-27 20:32:06,345 INFO L226 Difference]: Without dead ends: 458 [2024-11-27 20:32:06,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:06,347 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 134 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:06,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 329 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:32:06,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-11-27 20:32:06,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 438. [2024-11-27 20:32:06,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 285 states have (on average 1.6456140350877193) internal successors, (469), 416 states have internal predecessors, (469), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:32:06,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 509 transitions. [2024-11-27 20:32:06,377 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 509 transitions. Word has length 40 [2024-11-27 20:32:06,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:06,378 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 509 transitions. [2024-11-27 20:32:06,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:06,378 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 509 transitions. [2024-11-27 20:32:06,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 20:32:06,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:06,379 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:06,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:32:06,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:06,580 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:06,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:06,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1312111433, now seen corresponding path program 1 times [2024-11-27 20:32:06,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:06,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054634589] [2024-11-27 20:32:06,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:06,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:06,814 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:32:06,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:06,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054634589] [2024-11-27 20:32:06,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054634589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:06,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:06,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:06,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775976322] [2024-11-27 20:32:06,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:06,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:06,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:06,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:06,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:06,817 INFO L87 Difference]: Start difference. First operand 438 states and 509 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:07,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:07,267 INFO L93 Difference]: Finished difference Result 471 states and 516 transitions. [2024-11-27 20:32:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:07,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-11-27 20:32:07,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:07,271 INFO L225 Difference]: With dead ends: 471 [2024-11-27 20:32:07,271 INFO L226 Difference]: Without dead ends: 448 [2024-11-27 20:32:07,274 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 [2024-11-27 20:32:07,275 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 120 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:07,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 434 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:32:07,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-27 20:32:07,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 438. [2024-11-27 20:32:07,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 285 states have (on average 1.5649122807017544) internal successors, (446), 416 states have internal predecessors, (446), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:32:07,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 486 transitions. [2024-11-27 20:32:07,320 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 486 transitions. Word has length 42 [2024-11-27 20:32:07,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:07,321 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 486 transitions. [2024-11-27 20:32:07,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:07,321 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 486 transitions. [2024-11-27 20:32:07,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 20:32:07,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:07,326 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:07,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:32:07,327 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:07,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:07,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1781294933, now seen corresponding path program 1 times [2024-11-27 20:32:07,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:07,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108407863] [2024-11-27 20:32:07,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:07,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:07,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:32:07,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:07,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108407863] [2024-11-27 20:32:07,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108407863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:07,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:07,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:07,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159391716] [2024-11-27 20:32:07,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:07,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:32:07,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:07,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:32:07,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:07,457 INFO L87 Difference]: Start difference. First operand 438 states and 486 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:08,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:08,630 INFO L93 Difference]: Finished difference Result 450 states and 493 transitions. [2024-11-27 20:32:08,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:32:08,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2024-11-27 20:32:08,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:08,634 INFO L225 Difference]: With dead ends: 450 [2024-11-27 20:32:08,634 INFO L226 Difference]: Without dead ends: 448 [2024-11-27 20:32:08,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:08,636 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 140 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:08,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 518 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:32:08,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-27 20:32:08,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 438. [2024-11-27 20:32:08,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 285 states have (on average 1.5578947368421052) internal successors, (444), 416 states have internal predecessors, (444), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:32:08,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 484 transitions. [2024-11-27 20:32:08,664 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 484 transitions. Word has length 44 [2024-11-27 20:32:08,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:08,664 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 484 transitions. [2024-11-27 20:32:08,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:08,665 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 484 transitions. [2024-11-27 20:32:08,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 20:32:08,666 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:08,666 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:08,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:32:08,667 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:08,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:08,667 INFO L85 PathProgramCache]: Analyzing trace with hash 614432022, now seen corresponding path program 1 times [2024-11-27 20:32:08,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:08,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092330076] [2024-11-27 20:32:08,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:08,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:08,911 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:32:08,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:08,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092330076] [2024-11-27 20:32:08,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092330076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:08,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:08,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:08,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513389923] [2024-11-27 20:32:08,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:08,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:32:08,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:08,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:32:08,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:08,914 INFO L87 Difference]: Start difference. First operand 438 states and 484 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:09,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:09,514 INFO L93 Difference]: Finished difference Result 450 states and 491 transitions. [2024-11-27 20:32:09,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:32:09,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-11-27 20:32:09,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:09,519 INFO L225 Difference]: With dead ends: 450 [2024-11-27 20:32:09,519 INFO L226 Difference]: Without dead ends: 448 [2024-11-27 20:32:09,520 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:09,520 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 255 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:09,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 472 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:32:09,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-27 20:32:09,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 438. [2024-11-27 20:32:09,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 285 states have (on average 1.550877192982456) internal successors, (442), 416 states have internal predecessors, (442), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:32:09,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 482 transitions. [2024-11-27 20:32:09,560 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 482 transitions. Word has length 45 [2024-11-27 20:32:09,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:09,561 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 482 transitions. [2024-11-27 20:32:09,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:09,561 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 482 transitions. [2024-11-27 20:32:09,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-27 20:32:09,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:09,567 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:09,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:32:09,567 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:09,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:09,568 INFO L85 PathProgramCache]: Analyzing trace with hash -606149777, now seen corresponding path program 1 times [2024-11-27 20:32:09,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:09,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805185716] [2024-11-27 20:32:09,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:09,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:09,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543768609] [2024-11-27 20:32:09,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:09,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:09,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:09,609 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:09,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:32:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:09,674 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:32:09,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:32:10,090 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:32:10,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:10,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805185716] [2024-11-27 20:32:10,090 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:10,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543768609] [2024-11-27 20:32:10,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543768609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:10,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:10,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:10,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547435877] [2024-11-27 20:32:10,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:10,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:10,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:10,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:10,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:10,093 INFO L87 Difference]: Start difference. First operand 438 states and 482 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:10,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:10,716 INFO L93 Difference]: Finished difference Result 455 states and 489 transitions. [2024-11-27 20:32:10,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:10,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-11-27 20:32:10,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:10,722 INFO L225 Difference]: With dead ends: 455 [2024-11-27 20:32:10,722 INFO L226 Difference]: Without dead ends: 446 [2024-11-27 20:32:10,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:10,723 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 112 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:10,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 338 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:32:10,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-27 20:32:10,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 441. [2024-11-27 20:32:10,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 288 states have (on average 1.5243055555555556) internal successors, (439), 419 states have internal predecessors, (439), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:32:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 479 transitions. [2024-11-27 20:32:10,760 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 479 transitions. Word has length 48 [2024-11-27 20:32:10,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:10,761 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 479 transitions. [2024-11-27 20:32:10,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:10,761 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 479 transitions. [2024-11-27 20:32:10,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-27 20:32:10,766 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:10,767 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:10,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:32:10,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:10,967 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:10,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:10,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1610773798, now seen corresponding path program 1 times [2024-11-27 20:32:10,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:10,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799735790] [2024-11-27 20:32:10,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:10,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:11,140 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:32:11,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:11,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799735790] [2024-11-27 20:32:11,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799735790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:11,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:11,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:11,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127687544] [2024-11-27 20:32:11,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:11,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:32:11,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:11,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:32:11,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:11,143 INFO L87 Difference]: Start difference. First operand 441 states and 479 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:11,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:11,812 INFO L93 Difference]: Finished difference Result 454 states and 480 transitions. [2024-11-27 20:32:11,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:32:11,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2024-11-27 20:32:11,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:11,816 INFO L225 Difference]: With dead ends: 454 [2024-11-27 20:32:11,816 INFO L226 Difference]: Without dead ends: 448 [2024-11-27 20:32:11,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:11,818 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 247 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:11,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 376 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:32:11,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-27 20:32:11,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 441. [2024-11-27 20:32:11,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 288 states have (on average 1.5034722222222223) internal successors, (433), 419 states have internal predecessors, (433), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:32:11,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 473 transitions. [2024-11-27 20:32:11,846 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 473 transitions. Word has length 49 [2024-11-27 20:32:11,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:11,847 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 473 transitions. [2024-11-27 20:32:11,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:11,847 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 473 transitions. [2024-11-27 20:32:11,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-27 20:32:11,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:11,848 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:11,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:32:11,849 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:11,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:11,849 INFO L85 PathProgramCache]: Analyzing trace with hash -27600738, now seen corresponding path program 1 times [2024-11-27 20:32:11,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:11,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293506804] [2024-11-27 20:32:11,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:11,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:12,138 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:32:12,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:12,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293506804] [2024-11-27 20:32:12,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293506804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:12,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:12,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:12,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206565469] [2024-11-27 20:32:12,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:12,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:32:12,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:12,140 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:32:12,140 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:12,140 INFO L87 Difference]: Start difference. First operand 441 states and 473 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:12,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:12,909 INFO L93 Difference]: Finished difference Result 452 states and 474 transitions. [2024-11-27 20:32:12,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:12,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 53 [2024-11-27 20:32:12,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:12,912 INFO L225 Difference]: With dead ends: 452 [2024-11-27 20:32:12,912 INFO L226 Difference]: Without dead ends: 379 [2024-11-27 20:32:12,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:12,914 INFO L435 NwaCegarLoop]: 230 mSDtfsCounter, 226 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:12,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 316 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:32:12,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-27 20:32:12,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 375. [2024-11-27 20:32:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 225 states have (on average 1.6177777777777778) internal successors, (364), 356 states have internal predecessors, (364), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:32:12,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 398 transitions. [2024-11-27 20:32:12,937 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 398 transitions. Word has length 53 [2024-11-27 20:32:12,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:12,938 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 398 transitions. [2024-11-27 20:32:12,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:32:12,938 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 398 transitions. [2024-11-27 20:32:12,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 20:32:12,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:12,940 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:12,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:32:12,941 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:12,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:12,943 INFO L85 PathProgramCache]: Analyzing trace with hash -188580960, now seen corresponding path program 1 times [2024-11-27 20:32:12,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:12,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004304724] [2024-11-27 20:32:12,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:12,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:32:13,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:13,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004304724] [2024-11-27 20:32:13,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004304724] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:13,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:13,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:13,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400158479] [2024-11-27 20:32:13,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:13,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:13,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:13,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:13,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:13,115 INFO L87 Difference]: Start difference. First operand 375 states and 398 transitions. Second operand has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:32:13,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:13,647 INFO L93 Difference]: Finished difference Result 375 states and 398 transitions. [2024-11-27 20:32:13,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:13,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 85 [2024-11-27 20:32:13,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:13,650 INFO L225 Difference]: With dead ends: 375 [2024-11-27 20:32:13,653 INFO L226 Difference]: Without dead ends: 368 [2024-11-27 20:32:13,654 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 [2024-11-27 20:32:13,655 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 140 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:13,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 158 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:32:13,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-27 20:32:13,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-11-27 20:32:13,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 225 states have (on average 1.5866666666666667) internal successors, (357), 349 states have internal predecessors, (357), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:32:13,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 391 transitions. [2024-11-27 20:32:13,678 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 391 transitions. Word has length 85 [2024-11-27 20:32:13,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:13,680 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 391 transitions. [2024-11-27 20:32:13,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:32:13,681 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 391 transitions. [2024-11-27 20:32:13,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-27 20:32:13,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:13,687 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:13,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:32:13,687 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:13,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:13,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1551042300, now seen corresponding path program 1 times [2024-11-27 20:32:13,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:13,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319349167] [2024-11-27 20:32:13,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:13,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:13,806 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:32:13,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:13,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319349167] [2024-11-27 20:32:13,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319349167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:13,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:13,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:13,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792721144] [2024-11-27 20:32:13,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:13,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:13,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:13,808 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:13,808 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:13,808 INFO L87 Difference]: Start difference. First operand 368 states and 391 transitions. Second operand has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:32:14,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:14,240 INFO L93 Difference]: Finished difference Result 375 states and 394 transitions. [2024-11-27 20:32:14,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:14,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 86 [2024-11-27 20:32:14,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:14,243 INFO L225 Difference]: With dead ends: 375 [2024-11-27 20:32:14,244 INFO L226 Difference]: Without dead ends: 374 [2024-11-27 20:32:14,244 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 [2024-11-27 20:32:14,245 INFO L435 NwaCegarLoop]: 266 mSDtfsCounter, 24 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:14,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 409 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:32:14,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-27 20:32:14,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 370. [2024-11-27 20:32:14,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 227 states have (on average 1.5814977973568283) internal successors, (359), 351 states have internal predecessors, (359), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:32:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 393 transitions. [2024-11-27 20:32:14,269 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 393 transitions. Word has length 86 [2024-11-27 20:32:14,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:14,270 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 393 transitions. [2024-11-27 20:32:14,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 32.0) internal successors, (64), 3 states have internal predecessors, (64), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:32:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 393 transitions. [2024-11-27 20:32:14,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-27 20:32:14,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:14,272 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:14,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:32:14,272 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:14,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:14,273 INFO L85 PathProgramCache]: Analyzing trace with hash 11485931, now seen corresponding path program 1 times [2024-11-27 20:32:14,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:14,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859201398] [2024-11-27 20:32:14,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:14,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:14,492 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:32:14,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:14,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859201398] [2024-11-27 20:32:14,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859201398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:14,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:14,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:14,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955426032] [2024-11-27 20:32:14,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:14,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:14,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:14,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:14,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:14,494 INFO L87 Difference]: Start difference. First operand 370 states and 393 transitions. Second operand has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:32:14,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:14,638 INFO L93 Difference]: Finished difference Result 370 states and 393 transitions. [2024-11-27 20:32:14,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:14,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 88 [2024-11-27 20:32:14,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:14,641 INFO L225 Difference]: With dead ends: 370 [2024-11-27 20:32:14,642 INFO L226 Difference]: Without dead ends: 368 [2024-11-27 20:32:14,643 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 [2024-11-27 20:32:14,643 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 194 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:14,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 266 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:32:14,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-27 20:32:14,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-11-27 20:32:14,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 227 states have (on average 1.5638766519823788) internal successors, (355), 349 states have internal predecessors, (355), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:32:14,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 389 transitions. [2024-11-27 20:32:14,667 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 389 transitions. Word has length 88 [2024-11-27 20:32:14,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:14,667 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 389 transitions. [2024-11-27 20:32:14,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:32:14,668 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 389 transitions. [2024-11-27 20:32:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-27 20:32:14,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:14,670 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:14,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:32:14,671 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:14,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:14,673 INFO L85 PathProgramCache]: Analyzing trace with hash 356064041, now seen corresponding path program 1 times [2024-11-27 20:32:14,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:14,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561350409] [2024-11-27 20:32:14,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:14,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:14,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:14,831 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:32:14,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:14,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561350409] [2024-11-27 20:32:14,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561350409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:14,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:14,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:32:14,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965996031] [2024-11-27 20:32:14,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:14,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:32:14,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:14,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:32:14,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:32:14,832 INFO L87 Difference]: Start difference. First operand 368 states and 389 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-27 20:32:15,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:15,130 INFO L93 Difference]: Finished difference Result 372 states and 389 transitions. [2024-11-27 20:32:15,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:32:15,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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 89 [2024-11-27 20:32:15,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:15,134 INFO L225 Difference]: With dead ends: 372 [2024-11-27 20:32:15,134 INFO L226 Difference]: Without dead ends: 368 [2024-11-27 20:32:15,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:32:15,136 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 34 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:15,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 777 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:32:15,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-27 20:32:15,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 366. [2024-11-27 20:32:15,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 225 states have (on average 1.56) internal successors, (351), 347 states have internal predecessors, (351), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:32:15,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 385 transitions. [2024-11-27 20:32:15,155 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 385 transitions. Word has length 89 [2024-11-27 20:32:15,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:15,155 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 385 transitions. [2024-11-27 20:32:15,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 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) [2024-11-27 20:32:15,156 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 385 transitions. [2024-11-27 20:32:15,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-27 20:32:15,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:15,157 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:15,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:32:15,157 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:15,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:15,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1842953118, now seen corresponding path program 1 times [2024-11-27 20:32:15,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:15,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400808524] [2024-11-27 20:32:15,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:15,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:32:15,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:15,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400808524] [2024-11-27 20:32:15,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400808524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:15,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1838604880] [2024-11-27 20:32:15,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:15,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:15,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:15,317 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:15,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:32:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:15,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:32:15,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:15,589 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:32:15,589 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:32:15,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1838604880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:15,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:15,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-27 20:32:15,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687464764] [2024-11-27 20:32:15,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:15,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:32:15,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:15,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:32:15,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:32:15,591 INFO L87 Difference]: Start difference. First operand 366 states and 385 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:32:15,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:15,712 INFO L93 Difference]: Finished difference Result 535 states and 557 transitions. [2024-11-27 20:32:15,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:32:15,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 89 [2024-11-27 20:32:15,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:15,717 INFO L225 Difference]: With dead ends: 535 [2024-11-27 20:32:15,717 INFO L226 Difference]: Without dead ends: 534 [2024-11-27 20:32:15,719 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:32:15,719 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 221 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:15,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1499 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:32:15,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-27 20:32:15,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 442. [2024-11-27 20:32:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 296 states have (on average 1.6283783783783783) internal successors, (482), 418 states have internal predecessors, (482), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:32:15,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 526 transitions. [2024-11-27 20:32:15,749 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 526 transitions. Word has length 89 [2024-11-27 20:32:15,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:15,750 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 526 transitions. [2024-11-27 20:32:15,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:32:15,750 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 526 transitions. [2024-11-27 20:32:15,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-27 20:32:15,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:15,751 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:15,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:32:15,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:15,952 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:15,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:15,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1551419065, now seen corresponding path program 1 times [2024-11-27 20:32:15,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:15,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309388002] [2024-11-27 20:32:15,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:15,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:32:16,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:16,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309388002] [2024-11-27 20:32:16,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309388002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:16,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916389381] [2024-11-27 20:32:16,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:16,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:16,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:16,091 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:16,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:32:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:16,174 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:32:16,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:32:16,335 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:32:16,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916389381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:16,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:16,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-27 20:32:16,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923205612] [2024-11-27 20:32:16,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:16,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:32:16,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:16,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:32:16,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:32:16,337 INFO L87 Difference]: Start difference. First operand 442 states and 526 transitions. Second operand has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:32:16,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:16,520 INFO L93 Difference]: Finished difference Result 444 states and 526 transitions. [2024-11-27 20:32:16,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:32:16,520 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 91 [2024-11-27 20:32:16,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:16,524 INFO L225 Difference]: With dead ends: 444 [2024-11-27 20:32:16,525 INFO L226 Difference]: Without dead ends: 436 [2024-11-27 20:32:16,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:32:16,526 INFO L435 NwaCegarLoop]: 288 mSDtfsCounter, 437 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:16,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 355 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:32:16,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-27 20:32:16,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2024-11-27 20:32:16,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 296 states have (on average 1.5945945945945945) internal successors, (472), 410 states have internal predecessors, (472), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:32:16,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 516 transitions. [2024-11-27 20:32:16,550 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 516 transitions. Word has length 91 [2024-11-27 20:32:16,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:16,551 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 516 transitions. [2024-11-27 20:32:16,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:32:16,551 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 516 transitions. [2024-11-27 20:32:16,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-27 20:32:16,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:16,553 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:16,567 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:32:16,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 20:32:16,754 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:16,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:16,755 INFO L85 PathProgramCache]: Analyzing trace with hash -849350709, now seen corresponding path program 1 times [2024-11-27 20:32:16,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:16,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280394522] [2024-11-27 20:32:16,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:16,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:16,881 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:32:16,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:16,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280394522] [2024-11-27 20:32:16,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280394522] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:16,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867582803] [2024-11-27 20:32:16,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:16,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:16,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:16,885 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:16,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:32:16,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:16,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:32:16,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:17,107 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:32:17,107 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:17,299 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:32:17,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867582803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:32:17,300 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:32:17,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 20:32:17,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707590740] [2024-11-27 20:32:17,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:17,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:32:17,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:17,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:32:17,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:32:17,302 INFO L87 Difference]: Start difference. First operand 434 states and 516 transitions. Second operand has 7 states, 6 states have (on average 31.666666666666668) internal successors, (190), 7 states have internal predecessors, (190), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:32:17,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:17,620 INFO L93 Difference]: Finished difference Result 779 states and 948 transitions. [2024-11-27 20:32:17,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:32:17,621 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 31.666666666666668) internal successors, (190), 7 states have internal predecessors, (190), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 92 [2024-11-27 20:32:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:17,625 INFO L225 Difference]: With dead ends: 779 [2024-11-27 20:32:17,626 INFO L226 Difference]: Without dead ends: 771 [2024-11-27 20:32:17,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:32:17,627 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 453 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 1014 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:17,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 1014 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:32:17,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2024-11-27 20:32:17,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 505. [2024-11-27 20:32:17,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 367 states have (on average 1.561307901907357) internal successors, (573), 476 states have internal predecessors, (573), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 20:32:17,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 627 transitions. [2024-11-27 20:32:17,661 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 627 transitions. Word has length 92 [2024-11-27 20:32:17,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:17,662 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 627 transitions. [2024-11-27 20:32:17,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 31.666666666666668) internal successors, (190), 7 states have internal predecessors, (190), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:32:17,662 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 627 transitions. [2024-11-27 20:32:17,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-27 20:32:17,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:17,665 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:17,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-27 20:32:17,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:17,869 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:17,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1655904136, now seen corresponding path program 1 times [2024-11-27 20:32:17,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:17,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180945991] [2024-11-27 20:32:17,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:17,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:17,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:17,999 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-27 20:32:18,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:18,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180945991] [2024-11-27 20:32:18,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180945991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:18,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:18,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:18,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68003766] [2024-11-27 20:32:18,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:18,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:18,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:18,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:18,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:18,002 INFO L87 Difference]: Start difference. First operand 505 states and 627 transitions. Second operand has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:32:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:18,102 INFO L93 Difference]: Finished difference Result 505 states and 627 transitions. [2024-11-27 20:32:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:18,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 101 [2024-11-27 20:32:18,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:18,106 INFO L225 Difference]: With dead ends: 505 [2024-11-27 20:32:18,106 INFO L226 Difference]: Without dead ends: 503 [2024-11-27 20:32:18,107 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 [2024-11-27 20:32:18,107 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 170 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:18,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 252 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:32:18,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-27 20:32:18,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 503. [2024-11-27 20:32:18,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 367 states have (on average 1.550408719346049) internal successors, (569), 474 states have internal predecessors, (569), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-27 20:32:18,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 623 transitions. [2024-11-27 20:32:18,136 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 623 transitions. Word has length 101 [2024-11-27 20:32:18,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:18,136 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 623 transitions. [2024-11-27 20:32:18,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.5) internal successors, (71), 3 states have internal predecessors, (71), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:32:18,136 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 623 transitions. [2024-11-27 20:32:18,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-27 20:32:18,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:18,138 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:18,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:32:18,138 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:18,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:18,139 INFO L85 PathProgramCache]: Analyzing trace with hash 206579518, now seen corresponding path program 1 times [2024-11-27 20:32:18,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:18,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835788912] [2024-11-27 20:32:18,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:18,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:18,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:32:18,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:18,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835788912] [2024-11-27 20:32:18,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835788912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:18,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508771416] [2024-11-27 20:32:18,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:18,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:18,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:18,289 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:18,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:32:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:18,360 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:32:18,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:18,514 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:32:18,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:18,703 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:32:18,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508771416] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:32:18,703 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:32:18,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 6] total 10 [2024-11-27 20:32:18,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603047124] [2024-11-27 20:32:18,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:18,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:32:18,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:18,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:32:18,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:32:18,706 INFO L87 Difference]: Start difference. First operand 503 states and 623 transitions. Second operand has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-27 20:32:19,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:19,032 INFO L93 Difference]: Finished difference Result 1128 states and 1227 transitions. [2024-11-27 20:32:19,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:32:19,033 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 102 [2024-11-27 20:32:19,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:19,038 INFO L225 Difference]: With dead ends: 1128 [2024-11-27 20:32:19,038 INFO L226 Difference]: Without dead ends: 960 [2024-11-27 20:32:19,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=173, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:32:19,040 INFO L435 NwaCegarLoop]: 272 mSDtfsCounter, 727 mSDsluCounter, 1113 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:19,040 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1385 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:32:19,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-11-27 20:32:19,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 717. [2024-11-27 20:32:19,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 563 states have (on average 1.6145648312611012) internal successors, (909), 672 states have internal predecessors, (909), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 20:32:19,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 993 transitions. [2024-11-27 20:32:19,080 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 993 transitions. Word has length 102 [2024-11-27 20:32:19,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:19,080 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 993 transitions. [2024-11-27 20:32:19,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 14.6) internal successors, (146), 10 states have internal predecessors, (146), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-27 20:32:19,081 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 993 transitions. [2024-11-27 20:32:19,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-27 20:32:19,082 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:19,082 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:19,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 20:32:19,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:19,283 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:19,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:19,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1194138392, now seen corresponding path program 1 times [2024-11-27 20:32:19,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:19,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188349543] [2024-11-27 20:32:19,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:19,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:19,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273881925] [2024-11-27 20:32:19,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:19,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:19,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:19,326 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:19,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:32:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:19,402 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:32:19,405 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:32:19,543 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:19,844 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:32:19,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:19,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188349543] [2024-11-27 20:32:19,845 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:19,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273881925] [2024-11-27 20:32:19,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273881925] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:32:19,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:32:19,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-27 20:32:19,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734005387] [2024-11-27 20:32:19,846 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:19,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:32:19,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:19,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:32:19,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:32:19,848 INFO L87 Difference]: Start difference. First operand 717 states and 993 transitions. Second operand has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 20:32:20,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:20,206 INFO L93 Difference]: Finished difference Result 922 states and 1053 transitions. [2024-11-27 20:32:20,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:32:20,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 103 [2024-11-27 20:32:20,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:20,213 INFO L225 Difference]: With dead ends: 922 [2024-11-27 20:32:20,214 INFO L226 Difference]: Without dead ends: 916 [2024-11-27 20:32:20,215 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:32:20,216 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 1258 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:20,216 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 945 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:32:20,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2024-11-27 20:32:20,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 712. [2024-11-27 20:32:20,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 563 states have (on average 1.5914742451154529) internal successors, (896), 667 states have internal predecessors, (896), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 20:32:20,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 980 transitions. [2024-11-27 20:32:20,272 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 980 transitions. Word has length 103 [2024-11-27 20:32:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:20,275 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 980 transitions. [2024-11-27 20:32:20,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.6) internal successors, (148), 6 states have internal predecessors, (148), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 20:32:20,276 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 980 transitions. [2024-11-27 20:32:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-27 20:32:20,277 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:20,277 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:20,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 20:32:20,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:20,478 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:20,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:20,479 INFO L85 PathProgramCache]: Analyzing trace with hash -870109387, now seen corresponding path program 1 times [2024-11-27 20:32:20,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:20,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566299258] [2024-11-27 20:32:20,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:20,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:20,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1163473945] [2024-11-27 20:32:20,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:20,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:20,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:20,519 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:20,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:32:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:20,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:32:20,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:20,795 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 20:32:20,795 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:32:20,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:20,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566299258] [2024-11-27 20:32:20,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:20,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163473945] [2024-11-27 20:32:20,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163473945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:20,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:20,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:20,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933116584] [2024-11-27 20:32:20,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:20,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:32:20,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:20,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:32:20,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:20,797 INFO L87 Difference]: Start difference. First operand 712 states and 980 transitions. Second operand has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:32:21,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:21,416 INFO L93 Difference]: Finished difference Result 713 states and 980 transitions. [2024-11-27 20:32:21,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:21,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 105 [2024-11-27 20:32:21,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:21,421 INFO L225 Difference]: With dead ends: 713 [2024-11-27 20:32:21,421 INFO L226 Difference]: Without dead ends: 712 [2024-11-27 20:32:21,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:21,423 INFO L435 NwaCegarLoop]: 231 mSDtfsCounter, 64 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:21,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 461 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:32:21,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-11-27 20:32:21,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 712. [2024-11-27 20:32:21,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 563 states have (on average 1.5896980461811723) internal successors, (895), 667 states have internal predecessors, (895), 42 states have call successors, (42), 5 states have call predecessors, (42), 5 states have return successors, (42), 39 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-27 20:32:21,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 979 transitions. [2024-11-27 20:32:21,484 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 979 transitions. Word has length 105 [2024-11-27 20:32:21,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:21,484 INFO L471 AbstractCegarLoop]: Abstraction has 712 states and 979 transitions. [2024-11-27 20:32:21,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.333333333333332) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:32:21,485 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 979 transitions. [2024-11-27 20:32:21,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-27 20:32:21,486 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:21,486 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:21,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:32:21,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-27 20:32:21,687 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:21,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:21,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1203587016, now seen corresponding path program 1 times [2024-11-27 20:32:21,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:21,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830758323] [2024-11-27 20:32:21,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:21,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:21,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:21,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406338381] [2024-11-27 20:32:21,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:21,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:21,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:21,733 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:21,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:32:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:21,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:32:21,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:22,184 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 20:32:22,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:32:22,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:22,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830758323] [2024-11-27 20:32:22,185 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:22,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406338381] [2024-11-27 20:32:22,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406338381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:22,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:22,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:32:22,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079895074] [2024-11-27 20:32:22,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:22,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:32:22,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:22,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:32:22,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:32:22,187 INFO L87 Difference]: Start difference. First operand 712 states and 979 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:32:22,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:22,911 INFO L93 Difference]: Finished difference Result 713 states and 979 transitions. [2024-11-27 20:32:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:32:22,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 106 [2024-11-27 20:32:22,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:22,915 INFO L225 Difference]: With dead ends: 713 [2024-11-27 20:32:22,916 INFO L226 Difference]: Without dead ends: 692 [2024-11-27 20:32:22,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:32:22,920 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 20 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:22,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 389 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:32:22,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-27 20:32:22,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2024-11-27 20:32:22,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 545 states have (on average 1.6073394495412845) internal successors, (876), 649 states have internal predecessors, (876), 40 states have call successors, (40), 5 states have call predecessors, (40), 5 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:32:22,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 956 transitions. [2024-11-27 20:32:22,966 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 956 transitions. Word has length 106 [2024-11-27 20:32:22,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:22,966 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 956 transitions. [2024-11-27 20:32:22,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:32:22,967 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 956 transitions. [2024-11-27 20:32:22,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-27 20:32:22,968 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:22,968 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:22,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 20:32:23,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 20:32:23,169 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:23,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:23,170 INFO L85 PathProgramCache]: Analyzing trace with hash 867041705, now seen corresponding path program 1 times [2024-11-27 20:32:23,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:23,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689855806] [2024-11-27 20:32:23,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:23,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:23,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:23,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1566140922] [2024-11-27 20:32:23,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:23,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:23,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:23,208 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:23,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:32:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:23,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:32:23,295 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:23,733 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:32:23,734 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:32:23,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:23,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689855806] [2024-11-27 20:32:23,734 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:23,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566140922] [2024-11-27 20:32:23,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566140922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:23,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:23,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:32:23,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513709851] [2024-11-27 20:32:23,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:23,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:32:23,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:23,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:32:23,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:32:23,736 INFO L87 Difference]: Start difference. First operand 692 states and 956 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-11-27 20:32:24,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:24,655 INFO L93 Difference]: Finished difference Result 692 states and 956 transitions. [2024-11-27 20:32:24,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:32:24,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 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 124 [2024-11-27 20:32:24,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:24,660 INFO L225 Difference]: With dead ends: 692 [2024-11-27 20:32:24,661 INFO L226 Difference]: Without dead ends: 682 [2024-11-27 20:32:24,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:32:24,662 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 233 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:24,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 257 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:32:24,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-27 20:32:24,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 682. [2024-11-27 20:32:24,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 545 states have (on average 1.5522935779816514) internal successors, (846), 639 states have internal predecessors, (846), 40 states have call successors, (40), 5 states have call predecessors, (40), 5 states have return successors, (40), 37 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:32:24,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 926 transitions. [2024-11-27 20:32:24,704 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 926 transitions. Word has length 124 [2024-11-27 20:32:24,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:24,704 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 926 transitions. [2024-11-27 20:32:24,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 5 states have internal predecessors, (87), 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) [2024-11-27 20:32:24,704 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 926 transitions. [2024-11-27 20:32:24,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-27 20:32:24,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:24,706 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:24,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 20:32:24,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-27 20:32:24,911 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:24,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:24,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1108489168, now seen corresponding path program 1 times [2024-11-27 20:32:24,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:24,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412434274] [2024-11-27 20:32:24,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:24,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:24,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143218938] [2024-11-27 20:32:24,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:24,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:24,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:24,949 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:24,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:32:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:25,034 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:32:25,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:25,500 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:32:25,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:26,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:26,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412434274] [2024-11-27 20:32:26,377 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:26,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143218938] [2024-11-27 20:32:26,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143218938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:26,378 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:26,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:32:26,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272992685] [2024-11-27 20:32:26,378 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:26,378 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:32:26,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:26,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:32:26,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:32:26,380 INFO L87 Difference]: Start difference. First operand 682 states and 926 transitions. Second operand has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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) [2024-11-27 20:32:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:27,424 INFO L93 Difference]: Finished difference Result 733 states and 954 transitions. [2024-11-27 20:32:27,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:32:27,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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 125 [2024-11-27 20:32:27,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:27,429 INFO L225 Difference]: With dead ends: 733 [2024-11-27 20:32:27,429 INFO L226 Difference]: Without dead ends: 710 [2024-11-27 20:32:27,429 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:32:27,430 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 129 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:27,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 419 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:32:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2024-11-27 20:32:27,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 694. [2024-11-27 20:32:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 557 states have (on average 1.5152603231597845) internal successors, (844), 650 states have internal predecessors, (844), 40 states have call successors, (40), 5 states have call predecessors, (40), 5 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:32:27,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 924 transitions. [2024-11-27 20:32:27,470 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 924 transitions. Word has length 125 [2024-11-27 20:32:27,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:27,470 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 924 transitions. [2024-11-27 20:32:27,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 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) [2024-11-27 20:32:27,471 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 924 transitions. [2024-11-27 20:32:27,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-27 20:32:27,472 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:27,472 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:27,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 20:32:27,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 20:32:27,673 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:27,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:27,674 INFO L85 PathProgramCache]: Analyzing trace with hash 3425931, now seen corresponding path program 1 times [2024-11-27 20:32:27,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:27,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208827658] [2024-11-27 20:32:27,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:27,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:27,855 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:32:27,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:27,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208827658] [2024-11-27 20:32:27,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208827658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:27,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993682611] [2024-11-27 20:32:27,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:27,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:27,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:27,858 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:27,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:32:27,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:27,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:32:27,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:28,286 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:32:28,286 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:28,556 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:32:28,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993682611] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:32:28,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:32:28,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-11-27 20:32:28,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894342728] [2024-11-27 20:32:28,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:28,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:32:28,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:28,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:32:28,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:32:28,559 INFO L87 Difference]: Start difference. First operand 694 states and 924 transitions. Second operand has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 8 states have internal predecessors, (232), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:32:29,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:29,798 INFO L93 Difference]: Finished difference Result 734 states and 931 transitions. [2024-11-27 20:32:29,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:32:29,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 8 states have internal predecessors, (232), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 126 [2024-11-27 20:32:29,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:29,802 INFO L225 Difference]: With dead ends: 734 [2024-11-27 20:32:29,803 INFO L226 Difference]: Without dead ends: 729 [2024-11-27 20:32:29,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:32:29,804 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 464 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:29,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 759 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 20:32:29,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-27 20:32:29,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 693. [2024-11-27 20:32:29,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 557 states have (on average 1.4937163375224416) internal successors, (832), 649 states have internal predecessors, (832), 40 states have call successors, (40), 5 states have call predecessors, (40), 5 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:32:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 912 transitions. [2024-11-27 20:32:29,850 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 912 transitions. Word has length 126 [2024-11-27 20:32:29,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:29,851 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 912 transitions. [2024-11-27 20:32:29,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 33.142857142857146) internal successors, (232), 8 states have internal predecessors, (232), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:32:29,853 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 912 transitions. [2024-11-27 20:32:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-27 20:32:29,854 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:29,855 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:29,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 20:32:30,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 20:32:30,056 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:30,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:30,058 INFO L85 PathProgramCache]: Analyzing trace with hash 106203954, now seen corresponding path program 1 times [2024-11-27 20:32:30,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:30,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646659709] [2024-11-27 20:32:30,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:30,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:30,263 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:32:30,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:30,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646659709] [2024-11-27 20:32:30,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646659709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:30,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121430048] [2024-11-27 20:32:30,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:30,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:30,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:30,266 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:30,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:32:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:30,349 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:32:30,351 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:30,684 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:32:30,685 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:30,941 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:32:30,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121430048] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:32:30,942 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:32:30,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-11-27 20:32:30,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850622409] [2024-11-27 20:32:30,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:30,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:32:30,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:30,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:32:30,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:32:30,945 INFO L87 Difference]: Start difference. First operand 693 states and 912 transitions. Second operand has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 8 states have internal predecessors, (234), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:32:31,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:31,991 INFO L93 Difference]: Finished difference Result 733 states and 919 transitions. [2024-11-27 20:32:31,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:32:31,992 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 8 states have internal predecessors, (234), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 127 [2024-11-27 20:32:31,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:31,996 INFO L225 Difference]: With dead ends: 733 [2024-11-27 20:32:31,996 INFO L226 Difference]: Without dead ends: 728 [2024-11-27 20:32:31,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:32:31,997 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 461 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 473 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:31,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [473 Valid, 602 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:32:32,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-11-27 20:32:32,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 692. [2024-11-27 20:32:32,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 557 states have (on average 1.4721723518850987) internal successors, (820), 648 states have internal predecessors, (820), 40 states have call successors, (40), 5 states have call predecessors, (40), 5 states have return successors, (40), 38 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-27 20:32:32,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 900 transitions. [2024-11-27 20:32:32,042 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 900 transitions. Word has length 127 [2024-11-27 20:32:32,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:32,042 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 900 transitions. [2024-11-27 20:32:32,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 33.42857142857143) internal successors, (234), 8 states have internal predecessors, (234), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:32:32,043 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 900 transitions. [2024-11-27 20:32:32,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-27 20:32:32,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:32,046 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:32,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 20:32:32,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 20:32:32,247 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:32,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:32,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1002644627, now seen corresponding path program 1 times [2024-11-27 20:32:32,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:32,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775395599] [2024-11-27 20:32:32,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:32,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:32,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [844336772] [2024-11-27 20:32:32,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:32,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:32,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:32,282 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:32,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:32:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:32,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:32:32,367 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:33,108 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:32:33,108 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:32:33,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:33,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775395599] [2024-11-27 20:32:33,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:33,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844336772] [2024-11-27 20:32:33,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844336772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:32:33,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:32:33,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 20:32:33,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57884098] [2024-11-27 20:32:33,552 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:33,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:32:33,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:33,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:32:33,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:32:33,554 INFO L87 Difference]: Start difference. First operand 692 states and 900 transitions. Second operand has 10 states, 9 states have (on average 19.77777777777778) internal successors, (178), 10 states have internal predecessors, (178), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:32:36,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:36,550 INFO L93 Difference]: Finished difference Result 753 states and 932 transitions. [2024-11-27 20:32:36,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:32:36,551 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 19.77777777777778) internal successors, (178), 10 states have internal predecessors, (178), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 128 [2024-11-27 20:32:36,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:36,553 INFO L225 Difference]: With dead ends: 753 [2024-11-27 20:32:36,553 INFO L226 Difference]: Without dead ends: 658 [2024-11-27 20:32:36,554 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:32:36,555 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 594 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:36,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 479 Invalid, 1540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 20:32:36,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2024-11-27 20:32:36,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 639. [2024-11-27 20:32:36,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 509 states have (on average 1.4381139489194499) internal successors, (732), 598 states have internal predecessors, (732), 37 states have call successors, (37), 5 states have call predecessors, (37), 5 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:32:36,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 806 transitions. [2024-11-27 20:32:36,595 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 806 transitions. Word has length 128 [2024-11-27 20:32:36,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:36,595 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 806 transitions. [2024-11-27 20:32:36,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 19.77777777777778) internal successors, (178), 10 states have internal predecessors, (178), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:32:36,596 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 806 transitions. [2024-11-27 20:32:36,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-27 20:32:36,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:36,600 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:32:36,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 20:32:36,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-27 20:32:36,801 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:36,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:36,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1490659654, now seen corresponding path program 1 times [2024-11-27 20:32:36,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:36,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488902414] [2024-11-27 20:32:36,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:36,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:36,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:36,897 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2024-11-27 20:32:36,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:36,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488902414] [2024-11-27 20:32:36,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488902414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:32:36,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:32:36,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:32:36,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894207411] [2024-11-27 20:32:36,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:32:36,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:32:36,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:36,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:32:36,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:32:36,899 INFO L87 Difference]: Start difference. First operand 639 states and 806 transitions. Second operand has 3 states, 2 states have (on average 45.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:32:37,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:37,259 INFO L93 Difference]: Finished difference Result 643 states and 806 transitions. [2024-11-27 20:32:37,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:32:37,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 45.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 170 [2024-11-27 20:32:37,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:37,263 INFO L225 Difference]: With dead ends: 643 [2024-11-27 20:32:37,263 INFO L226 Difference]: Without dead ends: 640 [2024-11-27 20:32:37,263 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 [2024-11-27 20:32:37,264 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 132 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:37,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 188 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:32:37,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2024-11-27 20:32:37,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 637. [2024-11-27 20:32:37,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 509 states have (on average 1.4263261296660117) internal successors, (726), 596 states have internal predecessors, (726), 37 states have call successors, (37), 5 states have call predecessors, (37), 5 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:32:37,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 800 transitions. [2024-11-27 20:32:37,296 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 800 transitions. Word has length 170 [2024-11-27 20:32:37,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:37,297 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 800 transitions. [2024-11-27 20:32:37,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 45.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:32:37,297 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 800 transitions. [2024-11-27 20:32:37,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-27 20:32:37,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:37,299 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:32:37,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-27 20:32:37,300 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:37,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:37,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1963002351, now seen corresponding path program 1 times [2024-11-27 20:32:37,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:37,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713022291] [2024-11-27 20:32:37,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:37,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:37,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1924443554] [2024-11-27 20:32:37,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:37,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:37,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:37,334 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:37,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:32:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:37,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:32:37,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:38,130 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:32:38,130 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:39,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:39,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713022291] [2024-11-27 20:32:39,282 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:39,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924443554] [2024-11-27 20:32:39,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924443554] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:39,282 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:39,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:32:39,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950701411] [2024-11-27 20:32:39,283 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:39,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:32:39,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:39,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:32:39,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:32:39,285 INFO L87 Difference]: Start difference. First operand 637 states and 800 transitions. Second operand has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:32:40,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:40,200 INFO L93 Difference]: Finished difference Result 638 states and 800 transitions. [2024-11-27 20:32:40,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:32:40,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 174 [2024-11-27 20:32:40,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:40,204 INFO L225 Difference]: With dead ends: 638 [2024-11-27 20:32:40,204 INFO L226 Difference]: Without dead ends: 637 [2024-11-27 20:32:40,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:32:40,209 INFO L435 NwaCegarLoop]: 221 mSDtfsCounter, 32 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:40,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 466 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 691 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:32:40,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-27 20:32:40,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2024-11-27 20:32:40,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 509 states have (on average 1.424361493123772) internal successors, (725), 596 states have internal predecessors, (725), 37 states have call successors, (37), 5 states have call predecessors, (37), 5 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:32:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 799 transitions. [2024-11-27 20:32:40,251 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 799 transitions. Word has length 174 [2024-11-27 20:32:40,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:40,253 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 799 transitions. [2024-11-27 20:32:40,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 30.5) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:32:40,253 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 799 transitions. [2024-11-27 20:32:40,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-27 20:32:40,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:40,256 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:32:40,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 20:32:40,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 20:32:40,460 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:40,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:40,461 INFO L85 PathProgramCache]: Analyzing trace with hash 723530921, now seen corresponding path program 1 times [2024-11-27 20:32:40,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:40,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147049114] [2024-11-27 20:32:40,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:40,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:40,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [498923806] [2024-11-27 20:32:40,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:40,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:40,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:40,513 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:40,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:32:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:40,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:32:40,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:41,395 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:32:41,396 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:41,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:41,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147049114] [2024-11-27 20:32:41,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:41,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498923806] [2024-11-27 20:32:41,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498923806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:41,622 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:41,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 20:32:41,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673027549] [2024-11-27 20:32:41,623 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:41,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:32:41,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:41,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:32:41,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:32:41,625 INFO L87 Difference]: Start difference. First operand 637 states and 799 transitions. Second operand has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:32:42,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:42,444 INFO L93 Difference]: Finished difference Result 648 states and 799 transitions. [2024-11-27 20:32:42,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:32:42,444 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 175 [2024-11-27 20:32:42,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:42,446 INFO L225 Difference]: With dead ends: 648 [2024-11-27 20:32:42,446 INFO L226 Difference]: Without dead ends: 647 [2024-11-27 20:32:42,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:32:42,448 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 69 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:42,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 560 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:32:42,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-11-27 20:32:42,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 637. [2024-11-27 20:32:42,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 509 states have (on average 1.4223968565815324) internal successors, (724), 596 states have internal predecessors, (724), 37 states have call successors, (37), 5 states have call predecessors, (37), 5 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:32:42,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 798 transitions. [2024-11-27 20:32:42,486 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 798 transitions. Word has length 175 [2024-11-27 20:32:42,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:42,486 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 798 transitions. [2024-11-27 20:32:42,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.6) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:32:42,487 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 798 transitions. [2024-11-27 20:32:42,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-27 20:32:42,489 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:42,489 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:32:42,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 20:32:42,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:42,694 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:42,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:42,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1731006349, now seen corresponding path program 1 times [2024-11-27 20:32:42,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:42,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072806887] [2024-11-27 20:32:42,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:42,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:42,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [998523386] [2024-11-27 20:32:42,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:42,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:42,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:42,740 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:42,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:32:42,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:42,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:32:42,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:45,205 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:32:45,205 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:32:46,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:46,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072806887] [2024-11-27 20:32:46,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:46,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998523386] [2024-11-27 20:32:46,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998523386] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:32:46,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:32:46,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 20:32:46,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267535055] [2024-11-27 20:32:46,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:46,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:32:46,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:46,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:32:46,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:32:46,363 INFO L87 Difference]: Start difference. First operand 637 states and 798 transitions. Second operand has 10 states, 9 states have (on average 27.555555555555557) internal successors, (248), 10 states have internal predecessors, (248), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 20:32:51,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:51,321 INFO L93 Difference]: Finished difference Result 661 states and 822 transitions. [2024-11-27 20:32:51,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:32:51,321 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 27.555555555555557) internal successors, (248), 10 states have internal predecessors, (248), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 178 [2024-11-27 20:32:51,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:51,323 INFO L225 Difference]: With dead ends: 661 [2024-11-27 20:32:51,324 INFO L226 Difference]: Without dead ends: 653 [2024-11-27 20:32:51,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:32:51,325 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 299 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 1569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:51,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 367 Invalid, 1569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1545 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-27 20:32:51,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2024-11-27 20:32:51,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 637. [2024-11-27 20:32:51,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 509 states have (on average 1.4066797642436148) internal successors, (716), 596 states have internal predecessors, (716), 37 states have call successors, (37), 5 states have call predecessors, (37), 5 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:32:51,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 790 transitions. [2024-11-27 20:32:51,368 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 790 transitions. Word has length 178 [2024-11-27 20:32:51,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:51,369 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 790 transitions. [2024-11-27 20:32:51,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 27.555555555555557) internal successors, (248), 10 states have internal predecessors, (248), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 20:32:51,369 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 790 transitions. [2024-11-27 20:32:51,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-27 20:32:51,372 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:51,372 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:32:51,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-27 20:32:51,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-27 20:32:51,576 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:51,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:51,577 INFO L85 PathProgramCache]: Analyzing trace with hash -939948229, now seen corresponding path program 1 times [2024-11-27 20:32:51,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:51,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706061471] [2024-11-27 20:32:51,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:51,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:51,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:51,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855472394] [2024-11-27 20:32:51,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:51,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:51,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:51,618 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:51,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:32:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:51,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:32:51,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:52,941 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 33 proven. 56 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:32:52,942 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:53,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:53,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706061471] [2024-11-27 20:32:53,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:53,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855472394] [2024-11-27 20:32:53,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855472394] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:53,058 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:53,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 20:32:53,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430688252] [2024-11-27 20:32:53,058 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:53,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:32:53,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:53,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:32:53,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:32:53,061 INFO L87 Difference]: Start difference. First operand 637 states and 790 transitions. Second operand has 9 states, 8 states have (on average 17.875) internal successors, (143), 9 states have internal predecessors, (143), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 20:32:54,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:54,493 INFO L93 Difference]: Finished difference Result 647 states and 794 transitions. [2024-11-27 20:32:54,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:32:54,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.875) internal successors, (143), 9 states have internal predecessors, (143), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 197 [2024-11-27 20:32:54,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:54,496 INFO L225 Difference]: With dead ends: 647 [2024-11-27 20:32:54,497 INFO L226 Difference]: Without dead ends: 607 [2024-11-27 20:32:54,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:32:54,498 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 28 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:54,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 910 Invalid, 1295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:32:54,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-27 20:32:54,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 603. [2024-11-27 20:32:54,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 477 states have (on average 1.421383647798742) internal successors, (678), 564 states have internal predecessors, (678), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:32:54,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 748 transitions. [2024-11-27 20:32:54,543 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 748 transitions. Word has length 197 [2024-11-27 20:32:54,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:54,543 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 748 transitions. [2024-11-27 20:32:54,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.875) internal successors, (143), 9 states have internal predecessors, (143), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 20:32:54,544 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 748 transitions. [2024-11-27 20:32:54,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-27 20:32:54,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:54,547 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:32:54,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-27 20:32:54,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-27 20:32:54,748 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:54,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:54,748 INFO L85 PathProgramCache]: Analyzing trace with hash -33283891, now seen corresponding path program 1 times [2024-11-27 20:32:54,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:54,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053596026] [2024-11-27 20:32:54,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:54,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:32:54,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073736241] [2024-11-27 20:32:54,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:32:54,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:54,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:54,795 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:54,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 20:32:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:32:54,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:32:54,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:55,173 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:32:55,174 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:32:55,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:32:55,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053596026] [2024-11-27 20:32:55,319 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:32:55,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073736241] [2024-11-27 20:32:55,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073736241] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:32:55,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:32:55,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:32:55,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743190915] [2024-11-27 20:32:55,319 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:32:55,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:32:55,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:32:55,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:32:55,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:32:55,320 INFO L87 Difference]: Start difference. First operand 603 states and 748 transitions. Second operand has 5 states, 4 states have (on average 36.25) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 20:32:55,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:32:55,541 INFO L93 Difference]: Finished difference Result 694 states and 772 transitions. [2024-11-27 20:32:55,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:32:55,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 36.25) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 202 [2024-11-27 20:32:55,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:32:55,545 INFO L225 Difference]: With dead ends: 694 [2024-11-27 20:32:55,545 INFO L226 Difference]: Without dead ends: 693 [2024-11-27 20:32:55,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:32:55,547 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 189 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:32:55,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 837 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:32:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-11-27 20:32:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 603. [2024-11-27 20:32:55,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 477 states have (on average 1.419287211740042) internal successors, (677), 564 states have internal predecessors, (677), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 33 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:32:55,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 747 transitions. [2024-11-27 20:32:55,591 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 747 transitions. Word has length 202 [2024-11-27 20:32:55,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:32:55,592 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 747 transitions. [2024-11-27 20:32:55,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 36.25) internal successors, (145), 5 states have internal predecessors, (145), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 20:32:55,592 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 747 transitions. [2024-11-27 20:32:55,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-27 20:32:55,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:32:55,595 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:32:55,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-27 20:32:55,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:55,796 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:32:55,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:32:55,796 INFO L85 PathProgramCache]: Analyzing trace with hash 2056756558, now seen corresponding path program 2 times [2024-11-27 20:32:55,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:32:55,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135197633] [2024-11-27 20:32:55,796 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:32:55,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:32:55,844 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:32:55,845 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:32:55,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063026524] [2024-11-27 20:32:55,846 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:32:55,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:32:55,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:32:55,850 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:32:55,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 20:32:55,969 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:32:55,969 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:32:55,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:32:55,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:32:57,013 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 0 proven. 118 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:32:57,014 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:01,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:01,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135197633] [2024-11-27 20:33:01,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:33:01,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063026524] [2024-11-27 20:33:01,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063026524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:01,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:33:01,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 20:33:01,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788566871] [2024-11-27 20:33:01,542 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:01,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:33:01,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:01,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:33:01,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=86, Unknown=1, NotChecked=0, Total=132 [2024-11-27 20:33:01,544 INFO L87 Difference]: Start difference. First operand 603 states and 747 transitions. Second operand has 9 states, 8 states have (on average 18.375) internal successors, (147), 9 states have internal predecessors, (147), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 20:33:03,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:03,269 INFO L93 Difference]: Finished difference Result 645 states and 771 transitions. [2024-11-27 20:33:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:33:03,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 18.375) internal successors, (147), 9 states have internal predecessors, (147), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 209 [2024-11-27 20:33:03,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:03,272 INFO L225 Difference]: With dead ends: 645 [2024-11-27 20:33:03,272 INFO L226 Difference]: Without dead ends: 623 [2024-11-27 20:33:03,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=45, Invalid=86, Unknown=1, NotChecked=0, Total=132 [2024-11-27 20:33:03,273 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 121 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 1904 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:03,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 585 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1904 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 20:33:03,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-11-27 20:33:03,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 611. [2024-11-27 20:33:03,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 485 states have (on average 1.3731958762886598) internal successors, (666), 571 states have internal predecessors, (666), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:33:03,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 736 transitions. [2024-11-27 20:33:03,309 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 736 transitions. Word has length 209 [2024-11-27 20:33:03,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:03,310 INFO L471 AbstractCegarLoop]: Abstraction has 611 states and 736 transitions. [2024-11-27 20:33:03,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 18.375) internal successors, (147), 9 states have internal predecessors, (147), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 20:33:03,310 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 736 transitions. [2024-11-27 20:33:03,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-27 20:33:03,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:03,312 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:33:03,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-27 20:33:03,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:03,512 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:33:03,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:03,513 INFO L85 PathProgramCache]: Analyzing trace with hash -665056051, now seen corresponding path program 2 times [2024-11-27 20:33:03,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:03,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322292836] [2024-11-27 20:33:03,513 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:03,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:03,540 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:03,540 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:33:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:03,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:03,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322292836] [2024-11-27 20:33:03,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322292836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:03,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402513141] [2024-11-27 20:33:03,825 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:03,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:03,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:03,828 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:03,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 20:33:03,932 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:03,932 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:33:03,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:33:03,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:04,722 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:05,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402513141] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:33:05,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:33:05,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-27 20:33:05,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424260086] [2024-11-27 20:33:05,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:05,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:33:05,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:05,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:33:05,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:33:05,167 INFO L87 Difference]: Start difference. First operand 611 states and 736 transitions. Second operand has 13 states, 12 states have (on average 33.916666666666664) internal successors, (407), 13 states have internal predecessors, (407), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:33:06,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:06,971 INFO L93 Difference]: Finished difference Result 611 states and 736 transitions. [2024-11-27 20:33:06,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:33:06,972 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 33.916666666666664) internal successors, (407), 13 states have internal predecessors, (407), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 210 [2024-11-27 20:33:06,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:06,973 INFO L225 Difference]: With dead ends: 611 [2024-11-27 20:33:06,974 INFO L226 Difference]: Without dead ends: 604 [2024-11-27 20:33:06,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:33:06,975 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 520 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 1524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:06,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 660 Invalid, 1524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-27 20:33:06,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-27 20:33:07,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2024-11-27 20:33:07,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 485 states have (on average 1.3463917525773197) internal successors, (653), 564 states have internal predecessors, (653), 35 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (35), 34 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:33:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 723 transitions. [2024-11-27 20:33:07,019 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 723 transitions. Word has length 210 [2024-11-27 20:33:07,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:07,019 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 723 transitions. [2024-11-27 20:33:07,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 33.916666666666664) internal successors, (407), 13 states have internal predecessors, (407), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:33:07,020 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 723 transitions. [2024-11-27 20:33:07,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2024-11-27 20:33:07,021 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:07,021 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:33:07,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-27 20:33:07,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:07,222 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:33:07,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:07,223 INFO L85 PathProgramCache]: Analyzing trace with hash 858098992, now seen corresponding path program 2 times [2024-11-27 20:33:07,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:07,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088089173] [2024-11-27 20:33:07,223 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:07,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:07,246 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:07,247 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:33:07,508 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:07,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:07,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088089173] [2024-11-27 20:33:07,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088089173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:07,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88034223] [2024-11-27 20:33:07,509 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:07,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:07,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:07,512 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:07,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 20:33:07,615 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:07,615 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:33:07,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:33:07,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:08,350 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:08,350 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:08,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [88034223] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:33:08,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:33:08,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-27 20:33:08,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608064438] [2024-11-27 20:33:08,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:08,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:33:08,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:08,740 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:33:08,740 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:33:08,740 INFO L87 Difference]: Start difference. First operand 604 states and 723 transitions. Second operand has 13 states, 12 states have (on average 34.083333333333336) internal successors, (409), 13 states have internal predecessors, (409), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:33:10,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:10,123 INFO L93 Difference]: Finished difference Result 672 states and 768 transitions. [2024-11-27 20:33:10,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:33:10,123 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 34.083333333333336) internal successors, (409), 13 states have internal predecessors, (409), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 211 [2024-11-27 20:33:10,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:10,126 INFO L225 Difference]: With dead ends: 672 [2024-11-27 20:33:10,126 INFO L226 Difference]: Without dead ends: 670 [2024-11-27 20:33:10,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=169, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:33:10,127 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 387 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:10,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 689 Invalid, 1133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:33:10,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-27 20:33:10,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 629. [2024-11-27 20:33:10,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 507 states have (on average 1.3333333333333333) internal successors, (676), 586 states have internal predecessors, (676), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 20:33:10,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 752 transitions. [2024-11-27 20:33:10,167 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 752 transitions. Word has length 211 [2024-11-27 20:33:10,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:10,167 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 752 transitions. [2024-11-27 20:33:10,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 34.083333333333336) internal successors, (409), 13 states have internal predecessors, (409), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:33:10,168 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 752 transitions. [2024-11-27 20:33:10,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-27 20:33:10,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:10,169 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:33:10,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-27 20:33:10,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:10,370 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:33:10,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:10,371 INFO L85 PathProgramCache]: Analyzing trace with hash -586478, now seen corresponding path program 1 times [2024-11-27 20:33:10,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:10,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267496462] [2024-11-27 20:33:10,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:10,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:10,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:10,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267496462] [2024-11-27 20:33:10,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267496462] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:10,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068174865] [2024-11-27 20:33:10,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:10,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:10,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:10,681 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:10,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 20:33:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:10,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:33:10,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:11,579 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:11,579 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:11,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068174865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:11,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:33:11,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 20:33:11,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095556027] [2024-11-27 20:33:11,703 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:11,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:33:11,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:11,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:33:11,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:33:11,705 INFO L87 Difference]: Start difference. First operand 629 states and 752 transitions. Second operand has 11 states, 10 states have (on average 27.1) internal successors, (271), 11 states have internal predecessors, (271), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-27 20:33:14,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:14,918 INFO L93 Difference]: Finished difference Result 636 states and 755 transitions. [2024-11-27 20:33:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:33:14,918 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 27.1) internal successors, (271), 11 states have internal predecessors, (271), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 213 [2024-11-27 20:33:14,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:14,920 INFO L225 Difference]: With dead ends: 636 [2024-11-27 20:33:14,920 INFO L226 Difference]: Without dead ends: 624 [2024-11-27 20:33:14,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:33:14,921 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 728 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 1487 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 1552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:14,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 695 Invalid, 1552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1487 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 20:33:14,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2024-11-27 20:33:14,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 624. [2024-11-27 20:33:14,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 509 states have (on average 1.3045186640471513) internal successors, (664), 580 states have internal predecessors, (664), 38 states have call successors, (38), 5 states have call predecessors, (38), 5 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 20:33:14,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 740 transitions. [2024-11-27 20:33:14,945 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 740 transitions. Word has length 213 [2024-11-27 20:33:14,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:14,945 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 740 transitions. [2024-11-27 20:33:14,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 27.1) internal successors, (271), 11 states have internal predecessors, (271), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-27 20:33:14,946 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 740 transitions. [2024-11-27 20:33:14,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-27 20:33:14,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:14,947 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:33:14,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-27 20:33:15,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-27 20:33:15,148 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:33:15,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:15,148 INFO L85 PathProgramCache]: Analyzing trace with hash -291798541, now seen corresponding path program 1 times [2024-11-27 20:33:15,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:15,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820751663] [2024-11-27 20:33:15,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:15,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:33:15,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1488387338] [2024-11-27 20:33:15,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:15,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:15,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:15,185 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:15,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 20:33:15,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:15,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:33:15,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:16,340 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:16,340 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:16,985 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:33:16,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:16,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820751663] [2024-11-27 20:33:16,986 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:33:16,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488387338] [2024-11-27 20:33:16,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488387338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:33:16,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:33:16,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 20:33:16,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050702503] [2024-11-27 20:33:16,986 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:16,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:33:16,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:16,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:33:16,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:33:16,988 INFO L87 Difference]: Start difference. First operand 624 states and 740 transitions. Second operand has 16 states, 15 states have (on average 20.266666666666666) internal successors, (304), 16 states have internal predecessors, (304), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:33:23,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:23,711 INFO L93 Difference]: Finished difference Result 1020 states and 1295 transitions. [2024-11-27 20:33:23,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:33:23,712 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 20.266666666666666) internal successors, (304), 16 states have internal predecessors, (304), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 216 [2024-11-27 20:33:23,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:23,716 INFO L225 Difference]: With dead ends: 1020 [2024-11-27 20:33:23,716 INFO L226 Difference]: Without dead ends: 936 [2024-11-27 20:33:23,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 416 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:33:23,717 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 946 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 3588 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 3695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 3588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:23,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 1178 Invalid, 3695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 3588 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-27 20:33:23,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2024-11-27 20:33:23,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 728. [2024-11-27 20:33:23,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 606 states have (on average 1.3283828382838283) internal successors, (805), 677 states have internal predecessors, (805), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 20:33:23,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 895 transitions. [2024-11-27 20:33:23,759 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 895 transitions. Word has length 216 [2024-11-27 20:33:23,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:23,760 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 895 transitions. [2024-11-27 20:33:23,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 20.266666666666666) internal successors, (304), 16 states have internal predecessors, (304), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:33:23,760 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 895 transitions. [2024-11-27 20:33:23,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-27 20:33:23,762 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:23,762 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:23,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-27 20:33:23,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:23,967 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:33:23,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:23,967 INFO L85 PathProgramCache]: Analyzing trace with hash 297698353, now seen corresponding path program 2 times [2024-11-27 20:33:23,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:23,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870189326] [2024-11-27 20:33:23,968 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:23,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:24,019 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:24,019 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:33:24,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1913100558] [2024-11-27 20:33:24,025 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:24,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:24,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:24,033 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:24,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 20:33:24,143 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:24,143 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:33:24,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:33:24,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:33:25,233 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:25,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:25,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870189326] [2024-11-27 20:33:25,817 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:33:25,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913100558] [2024-11-27 20:33:25,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913100558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:25,818 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:33:25,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 20:33:25,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172298521] [2024-11-27 20:33:25,818 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:25,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:33:25,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:25,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:33:25,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:33:25,819 INFO L87 Difference]: Start difference. First operand 728 states and 895 transitions. Second operand has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 8 states have internal predecessors, (181), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:33:27,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:27,408 INFO L93 Difference]: Finished difference Result 729 states and 895 transitions. [2024-11-27 20:33:27,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:33:27,409 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 8 states have internal predecessors, (181), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 258 [2024-11-27 20:33:27,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:27,411 INFO L225 Difference]: With dead ends: 729 [2024-11-27 20:33:27,412 INFO L226 Difference]: Without dead ends: 725 [2024-11-27 20:33:27,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=250, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:33:27,413 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 659 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:27,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 190 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 20:33:27,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-27 20:33:27,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 724. [2024-11-27 20:33:27,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 606 states have (on average 1.3052805280528053) internal successors, (791), 673 states have internal predecessors, (791), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 20:33:27,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 881 transitions. [2024-11-27 20:33:27,446 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 881 transitions. Word has length 258 [2024-11-27 20:33:27,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:27,446 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 881 transitions. [2024-11-27 20:33:27,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 25.857142857142858) internal successors, (181), 8 states have internal predecessors, (181), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:33:27,447 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 881 transitions. [2024-11-27 20:33:27,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-27 20:33:27,448 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:27,448 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:27,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-27 20:33:27,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-27 20:33:27,649 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:33:27,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:27,649 INFO L85 PathProgramCache]: Analyzing trace with hash 638714535, now seen corresponding path program 2 times [2024-11-27 20:33:27,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:27,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155805068] [2024-11-27 20:33:27,649 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:27,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:27,693 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:27,693 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:33:27,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261518473] [2024-11-27 20:33:27,696 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:27,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:27,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:27,698 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:27,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-27 20:33:27,810 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:27,810 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:33:27,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:33:27,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:28,982 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:33:28,982 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:29,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:29,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155805068] [2024-11-27 20:33:29,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:33:29,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261518473] [2024-11-27 20:33:29,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261518473] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:33:29,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:33:29,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 20:33:29,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997210521] [2024-11-27 20:33:29,274 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:29,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:33:29,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:29,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:33:29,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:33:29,275 INFO L87 Difference]: Start difference. First operand 724 states and 881 transitions. Second operand has 10 states, 9 states have (on average 20.22222222222222) internal successors, (182), 10 states have internal predecessors, (182), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-27 20:33:30,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:30,752 INFO L93 Difference]: Finished difference Result 733 states and 881 transitions. [2024-11-27 20:33:30,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:33:30,753 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 20.22222222222222) internal successors, (182), 10 states have internal predecessors, (182), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 259 [2024-11-27 20:33:30,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:30,756 INFO L225 Difference]: With dead ends: 733 [2024-11-27 20:33:30,756 INFO L226 Difference]: Without dead ends: 732 [2024-11-27 20:33:30,757 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:33:30,757 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 162 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:30,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 634 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 20:33:30,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2024-11-27 20:33:30,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 724. [2024-11-27 20:33:30,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 606 states have (on average 1.3036303630363035) internal successors, (790), 673 states have internal predecessors, (790), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-27 20:33:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 880 transitions. [2024-11-27 20:33:30,802 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 880 transitions. Word has length 259 [2024-11-27 20:33:30,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:30,803 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 880 transitions. [2024-11-27 20:33:30,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 20.22222222222222) internal successors, (182), 10 states have internal predecessors, (182), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-27 20:33:30,803 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 880 transitions. [2024-11-27 20:33:30,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-27 20:33:30,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:30,805 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:30,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-27 20:33:31,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:31,006 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:33:31,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:31,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1239775669, now seen corresponding path program 2 times [2024-11-27 20:33:31,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:31,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295538296] [2024-11-27 20:33:31,006 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:31,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:31,043 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:31,044 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:33:31,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [516005784] [2024-11-27 20:33:31,045 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:31,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:31,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:31,049 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:31,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-27 20:33:31,212 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:31,212 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:33:31,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 20:33:31,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:33:33,724 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:35,277 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:33:35,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:35,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295538296] [2024-11-27 20:33:35,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:33:35,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516005784] [2024-11-27 20:33:35,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516005784] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:33:35,278 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:33:35,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 20:33:35,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111574335] [2024-11-27 20:33:35,278 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:35,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:33:35,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:35,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:33:35,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:33:35,280 INFO L87 Difference]: Start difference. First operand 724 states and 880 transitions. Second operand has 16 states, 15 states have (on average 24.4) internal successors, (366), 16 states have internal predecessors, (366), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-27 20:33:50,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:51,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:51,580 INFO L93 Difference]: Finished difference Result 760 states and 914 transitions. [2024-11-27 20:33:51,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:33:51,580 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 24.4) internal successors, (366), 16 states have internal predecessors, (366), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 262 [2024-11-27 20:33:51,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:51,582 INFO L225 Difference]: With dead ends: 760 [2024-11-27 20:33:51,583 INFO L226 Difference]: Without dead ends: 754 [2024-11-27 20:33:51,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:33:51,583 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 302 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 3243 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 3270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:51,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 732 Invalid, 3270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 3243 Invalid, 0 Unknown, 0 Unchecked, 16.0s Time] [2024-11-27 20:33:51,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-11-27 20:33:51,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 736. [2024-11-27 20:33:51,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 617 states have (on average 1.2917341977309562) internal successors, (797), 684 states have internal predecessors, (797), 46 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-27 20:33:51,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 889 transitions. [2024-11-27 20:33:51,631 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 889 transitions. Word has length 262 [2024-11-27 20:33:51,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:51,631 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 889 transitions. [2024-11-27 20:33:51,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 24.4) internal successors, (366), 16 states have internal predecessors, (366), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-27 20:33:51,632 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 889 transitions. [2024-11-27 20:33:51,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-27 20:33:51,633 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:51,634 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-11-27 20:33:51,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-27 20:33:51,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:51,834 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:33:51,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:51,835 INFO L85 PathProgramCache]: Analyzing trace with hash 316817448, now seen corresponding path program 1 times [2024-11-27 20:33:51,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:51,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792426147] [2024-11-27 20:33:51,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:51,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:51,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:33:51,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [182788272] [2024-11-27 20:33:51,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:33:51,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:51,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:51,874 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:51,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-27 20:33:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:33:51,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:33:51,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:52,310 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:33:52,310 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:52,836 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:33:52,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:52,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792426147] [2024-11-27 20:33:52,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:33:52,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182788272] [2024-11-27 20:33:52,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182788272] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:33:52,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:33:52,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 20:33:52,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392307734] [2024-11-27 20:33:52,837 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:52,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:33:52,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:52,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:33:52,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:33:52,839 INFO L87 Difference]: Start difference. First operand 736 states and 889 transitions. Second operand has 10 states, 9 states have (on average 43.55555555555556) internal successors, (392), 10 states have internal predecessors, (392), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2024-11-27 20:33:53,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:33:53,333 INFO L93 Difference]: Finished difference Result 929 states and 1016 transitions. [2024-11-27 20:33:53,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:33:53,334 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 43.55555555555556) internal successors, (392), 10 states have internal predecessors, (392), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 275 [2024-11-27 20:33:53,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:33:53,336 INFO L225 Difference]: With dead ends: 929 [2024-11-27 20:33:53,337 INFO L226 Difference]: Without dead ends: 927 [2024-11-27 20:33:53,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:33:53,338 INFO L435 NwaCegarLoop]: 475 mSDtfsCounter, 1529 mSDsluCounter, 1649 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1540 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:33:53,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1540 Valid, 2124 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:33:53,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2024-11-27 20:33:53,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 735. [2024-11-27 20:33:53,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 617 states have (on average 1.2852512155591571) internal successors, (793), 683 states have internal predecessors, (793), 46 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-27 20:33:53,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 885 transitions. [2024-11-27 20:33:53,390 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 885 transitions. Word has length 275 [2024-11-27 20:33:53,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:33:53,391 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 885 transitions. [2024-11-27 20:33:53,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 43.55555555555556) internal successors, (392), 10 states have internal predecessors, (392), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2024-11-27 20:33:53,391 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 885 transitions. [2024-11-27 20:33:53,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-11-27 20:33:53,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:33:53,393 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:33:53,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-27 20:33:53,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:53,593 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr80ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:33:53,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:33:53,594 INFO L85 PathProgramCache]: Analyzing trace with hash -585522503, now seen corresponding path program 2 times [2024-11-27 20:33:53,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:33:53,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991202198] [2024-11-27 20:33:53,594 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:53,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:33:53,635 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:53,635 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:33:53,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1319536381] [2024-11-27 20:33:53,637 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:33:53,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:33:53,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:33:53,639 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:33:53,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-27 20:33:53,760 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:33:53,760 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:33:53,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 20:33:53,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:33:54,995 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 20:33:54,995 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:33:55,938 INFO L134 CoverageAnalysis]: Checked inductivity of 720 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 20:33:55,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:33:55,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991202198] [2024-11-27 20:33:55,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:33:55,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319536381] [2024-11-27 20:33:55,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319536381] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:33:55,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:33:55,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-27 20:33:55,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188704923] [2024-11-27 20:33:55,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:33:55,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 20:33:55,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:33:55,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 20:33:55,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:33:55,941 INFO L87 Difference]: Start difference. First operand 735 states and 885 transitions. Second operand has 20 states, 19 states have (on average 20.736842105263158) internal successors, (394), 20 states have internal predecessors, (394), 8 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 8 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-27 20:34:00,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:00,921 INFO L93 Difference]: Finished difference Result 870 states and 1077 transitions. [2024-11-27 20:34:00,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-27 20:34:00,922 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 20.736842105263158) internal successors, (394), 20 states have internal predecessors, (394), 8 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 8 states have call predecessors, (34), 8 states have call successors, (34) Word has length 281 [2024-11-27 20:34:00,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:00,925 INFO L225 Difference]: With dead ends: 870 [2024-11-27 20:34:00,925 INFO L226 Difference]: Without dead ends: 830 [2024-11-27 20:34:00,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 20:34:00,930 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 734 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 4853 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 4933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 4853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:00,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 799 Invalid, 4933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 4853 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-27 20:34:00,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-11-27 20:34:00,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 750. [2024-11-27 20:34:00,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 630 states have (on average 1.3031746031746032) internal successors, (821), 696 states have internal predecessors, (821), 48 states have call successors, (48), 5 states have call predecessors, (48), 5 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 20:34:00,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 917 transitions. [2024-11-27 20:34:00,973 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 917 transitions. Word has length 281 [2024-11-27 20:34:00,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:00,973 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 917 transitions. [2024-11-27 20:34:00,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 20.736842105263158) internal successors, (394), 20 states have internal predecessors, (394), 8 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 8 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-27 20:34:00,974 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 917 transitions. [2024-11-27 20:34:00,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-11-27 20:34:00,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:00,975 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-11-27 20:34:00,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-27 20:34:01,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-27 20:34:01,176 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:34:01,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:01,176 INFO L85 PathProgramCache]: Analyzing trace with hash 367291340, now seen corresponding path program 3 times [2024-11-27 20:34:01,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:01,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121461894] [2024-11-27 20:34:01,177 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:34:01,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:01,221 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 20:34:01,221 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:34:01,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [920619760] [2024-11-27 20:34:01,223 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:34:01,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:01,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:01,226 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:01,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-27 20:34:01,319 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 20:34:01,319 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:01,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 20:34:01,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:05,500 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 146 proven. 106 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2024-11-27 20:34:05,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:08,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:08,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121461894] [2024-11-27 20:34:08,903 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:34:08,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920619760] [2024-11-27 20:34:08,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920619760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:08,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:08,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 20:34:08,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761843197] [2024-11-27 20:34:08,903 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:08,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:34:08,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:08,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:34:08,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:34:08,905 INFO L87 Difference]: Start difference. First operand 750 states and 917 transitions. Second operand has 13 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-27 20:34:17,313 WARN L286 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 40 DAG size of output: 31 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:34:22,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:34:25,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:34:29,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:34:32,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:34:32,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:32,454 INFO L93 Difference]: Finished difference Result 760 states and 927 transitions. [2024-11-27 20:34:32,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:34:32,454 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 293 [2024-11-27 20:34:32,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:32,458 INFO L225 Difference]: With dead ends: 760 [2024-11-27 20:34:32,458 INFO L226 Difference]: Without dead ends: 733 [2024-11-27 20:34:32,458 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 399 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=234, Invalid=696, Unknown=0, NotChecked=0, Total=930 [2024-11-27 20:34:32,459 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 1001 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 112 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 1165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:32,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 190 Invalid, 1165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 1052 Invalid, 1 Unknown, 0 Unchecked, 15.9s Time] [2024-11-27 20:34:32,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-11-27 20:34:32,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 721. [2024-11-27 20:34:32,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 628 states have (on average 1.1878980891719746) internal successors, (746), 668 states have internal predecessors, (746), 48 states have call successors, (48), 5 states have call predecessors, (48), 5 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 20:34:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 842 transitions. [2024-11-27 20:34:32,500 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 842 transitions. Word has length 293 [2024-11-27 20:34:32,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:32,501 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 842 transitions. [2024-11-27 20:34:32,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.083333333333334) internal successors, (109), 12 states have internal predecessors, (109), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-27 20:34:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 842 transitions. [2024-11-27 20:34:32,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-11-27 20:34:32,503 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:32,503 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-11-27 20:34:32,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-27 20:34:32,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-27 20:34:32,704 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:34:32,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:32,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1439006343, now seen corresponding path program 1 times [2024-11-27 20:34:32,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:32,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027529877] [2024-11-27 20:34:32,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:32,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:33,064 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:34:33,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:33,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027529877] [2024-11-27 20:34:33,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027529877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:33,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433405538] [2024-11-27 20:34:33,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:33,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:33,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:33,067 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:33,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 20:34:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:33,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:34:33,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:33,582 INFO L134 CoverageAnalysis]: Checked inductivity of 918 backedges. 306 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:34:33,582 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:34:33,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1433405538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:33,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:33,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-11-27 20:34:33,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276348332] [2024-11-27 20:34:33,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:33,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:34:33,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:33,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:34:33,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:34:33,584 INFO L87 Difference]: Start difference. First operand 721 states and 842 transitions. Second operand has 7 states, 6 states have (on average 36.166666666666664) internal successors, (217), 7 states have internal predecessors, (217), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 20:34:34,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:34,929 INFO L93 Difference]: Finished difference Result 730 states and 851 transitions. [2024-11-27 20:34:34,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:34:34,929 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 36.166666666666664) internal successors, (217), 7 states have internal predecessors, (217), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 304 [2024-11-27 20:34:34,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:34,931 INFO L225 Difference]: With dead ends: 730 [2024-11-27 20:34:34,931 INFO L226 Difference]: Without dead ends: 726 [2024-11-27 20:34:34,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:34:34,931 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 190 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:34,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 636 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:34:34,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-27 20:34:34,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 717. [2024-11-27 20:34:34,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 628 states have (on average 1.1751592356687899) internal successors, (738), 664 states have internal predecessors, (738), 48 states have call successors, (48), 5 states have call predecessors, (48), 5 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-27 20:34:34,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 834 transitions. [2024-11-27 20:34:34,982 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 834 transitions. Word has length 304 [2024-11-27 20:34:34,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:34,982 INFO L471 AbstractCegarLoop]: Abstraction has 717 states and 834 transitions. [2024-11-27 20:34:34,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 36.166666666666664) internal successors, (217), 7 states have internal predecessors, (217), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 20:34:34,982 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 834 transitions. [2024-11-27 20:34:34,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-11-27 20:34:34,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:34,984 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-11-27 20:34:34,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-27 20:34:35,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-27 20:34:35,184 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:34:35,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:35,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1659523560, now seen corresponding path program 1 times [2024-11-27 20:34:35,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:35,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784212110] [2024-11-27 20:34:35,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:35,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:35,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:35,794 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 0 proven. 309 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:34:35,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:35,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784212110] [2024-11-27 20:34:35,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784212110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:35,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [630896341] [2024-11-27 20:34:35,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:35,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:35,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:35,796 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:35,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-27 20:34:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:35,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:34:35,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:37,234 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 192 proven. 117 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:34:37,234 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:39,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [630896341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:39,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:34:39,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2024-11-27 20:34:39,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733899043] [2024-11-27 20:34:39,439 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:39,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 20:34:39,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:39,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 20:34:39,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870 [2024-11-27 20:34:39,441 INFO L87 Difference]: Start difference. First operand 717 states and 834 transitions. Second operand has 25 states, 24 states have (on average 18.0) internal successors, (432), 25 states have internal predecessors, (432), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:34:44,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:44,117 INFO L93 Difference]: Finished difference Result 717 states and 834 transitions. [2024-11-27 20:34:44,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:34:44,118 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 18.0) internal successors, (432), 25 states have internal predecessors, (432), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 305 [2024-11-27 20:34:44,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:44,120 INFO L225 Difference]: With dead ends: 717 [2024-11-27 20:34:44,120 INFO L226 Difference]: Without dead ends: 669 [2024-11-27 20:34:44,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=313, Invalid=1093, Unknown=0, NotChecked=0, Total=1406 [2024-11-27 20:34:44,121 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 1249 mSDsluCounter, 1625 mSDsCounter, 0 mSdLazyCounter, 3158 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 3262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 3158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:44,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1799 Invalid, 3262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 3158 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-27 20:34:44,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-11-27 20:34:44,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 651. [2024-11-27 20:34:44,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 651 states, 570 states have (on average 1.1578947368421053) internal successors, (660), 601 states have internal predecessors, (660), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-27 20:34:44,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 748 transitions. [2024-11-27 20:34:44,159 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 748 transitions. Word has length 305 [2024-11-27 20:34:44,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:44,159 INFO L471 AbstractCegarLoop]: Abstraction has 651 states and 748 transitions. [2024-11-27 20:34:44,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 18.0) internal successors, (432), 25 states have internal predecessors, (432), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:34:44,160 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 748 transitions. [2024-11-27 20:34:44,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-11-27 20:34:44,161 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:44,161 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1] [2024-11-27 20:34:44,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-27 20:34:44,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-27 20:34:44,362 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:34:44,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:44,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1992913338, now seen corresponding path program 1 times [2024-11-27 20:34:44,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:44,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185885406] [2024-11-27 20:34:44,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:44,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:44,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1132 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 1039 trivial. 0 not checked. [2024-11-27 20:34:44,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:44,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185885406] [2024-11-27 20:34:44,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185885406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:34:44,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:34:44,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:34:44,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044262517] [2024-11-27 20:34:44,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:34:44,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:34:44,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:44,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:34:44,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:34:44,528 INFO L87 Difference]: Start difference. First operand 651 states and 748 transitions. Second operand has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:34:45,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:45,178 INFO L93 Difference]: Finished difference Result 678 states and 776 transitions. [2024-11-27 20:34:45,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:34:45,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 334 [2024-11-27 20:34:45,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:45,181 INFO L225 Difference]: With dead ends: 678 [2024-11-27 20:34:45,181 INFO L226 Difference]: Without dead ends: 677 [2024-11-27 20:34:45,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:34:45,182 INFO L435 NwaCegarLoop]: 156 mSDtfsCounter, 239 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:45,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 309 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:34:45,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2024-11-27 20:34:45,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 650. [2024-11-27 20:34:45,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 570 states have (on average 1.1543859649122807) internal successors, (658), 600 states have internal predecessors, (658), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-27 20:34:45,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 746 transitions. [2024-11-27 20:34:45,238 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 746 transitions. Word has length 334 [2024-11-27 20:34:45,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:45,238 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 746 transitions. [2024-11-27 20:34:45,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 31.333333333333332) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:34:45,238 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 746 transitions. [2024-11-27 20:34:45,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-27 20:34:45,240 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:45,240 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:45,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-27 20:34:45,241 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:34:45,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:45,241 INFO L85 PathProgramCache]: Analyzing trace with hash 113767845, now seen corresponding path program 3 times [2024-11-27 20:34:45,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:45,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302450971] [2024-11-27 20:34:45,242 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:34:45,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:45,340 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 20:34:45,340 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:34:45,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568308821] [2024-11-27 20:34:45,342 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:34:45,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:45,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:45,345 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:45,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 20:34:45,602 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:34:45,602 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:45,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:34:45,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:47,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:34:47,635 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:47,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:47,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302450971] [2024-11-27 20:34:47,980 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:34:47,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568308821] [2024-11-27 20:34:47,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568308821] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:47,980 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:47,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 20:34:47,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545189295] [2024-11-27 20:34:47,981 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:47,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:34:47,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:47,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:34:47,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:34:47,982 INFO L87 Difference]: Start difference. First operand 650 states and 746 transitions. Second operand has 14 states, 13 states have (on average 18.53846153846154) internal successors, (241), 14 states have internal predecessors, (241), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-27 20:34:50,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:50,942 INFO L93 Difference]: Finished difference Result 706 states and 816 transitions. [2024-11-27 20:34:50,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:34:50,943 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.53846153846154) internal successors, (241), 14 states have internal predecessors, (241), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 343 [2024-11-27 20:34:50,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:50,945 INFO L225 Difference]: With dead ends: 706 [2024-11-27 20:34:50,946 INFO L226 Difference]: Without dead ends: 705 [2024-11-27 20:34:50,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:34:50,947 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 169 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 3395 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 3408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:50,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 883 Invalid, 3408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 3395 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 20:34:50,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2024-11-27 20:34:50,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 650. [2024-11-27 20:34:50,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 570 states have (on average 1.1526315789473685) internal successors, (657), 600 states have internal predecessors, (657), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-27 20:34:50,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 745 transitions. [2024-11-27 20:34:50,997 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 745 transitions. Word has length 343 [2024-11-27 20:34:50,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:50,998 INFO L471 AbstractCegarLoop]: Abstraction has 650 states and 745 transitions. [2024-11-27 20:34:50,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.53846153846154) internal successors, (241), 14 states have internal predecessors, (241), 6 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-27 20:34:50,998 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 745 transitions. [2024-11-27 20:34:50,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-27 20:34:50,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:51,000 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:51,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-27 20:34:51,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-27 20:34:51,200 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:34:51,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:51,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1956722599, now seen corresponding path program 1 times [2024-11-27 20:34:51,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:51,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976338821] [2024-11-27 20:34:51,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:51,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:34:51,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [62871701] [2024-11-27 20:34:51,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:51,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:51,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:51,249 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:51,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-27 20:34:51,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:51,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-27 20:34:51,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:53,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:34:53,256 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:54,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:54,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976338821] [2024-11-27 20:34:54,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:34:54,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62871701] [2024-11-27 20:34:54,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62871701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:54,039 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:54,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 20:34:54,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686036105] [2024-11-27 20:34:54,039 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:54,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:34:54,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:54,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:34:54,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:34:54,040 INFO L87 Difference]: Start difference. First operand 650 states and 745 transitions. Second operand has 13 states, 12 states have (on average 20.25) internal successors, (243), 13 states have internal predecessors, (243), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-27 20:34:56,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:56,405 INFO L93 Difference]: Finished difference Result 705 states and 815 transitions. [2024-11-27 20:34:56,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:34:56,405 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 20.25) internal successors, (243), 13 states have internal predecessors, (243), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 345 [2024-11-27 20:34:56,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:56,407 INFO L225 Difference]: With dead ends: 705 [2024-11-27 20:34:56,407 INFO L226 Difference]: Without dead ends: 698 [2024-11-27 20:34:56,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:34:56,408 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 51 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 3667 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 3673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:56,409 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1058 Invalid, 3673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3667 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 20:34:56,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-27 20:34:56,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 696. [2024-11-27 20:34:56,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 614 states have (on average 1.1644951140065147) internal successors, (715), 644 states have internal predecessors, (715), 46 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-27 20:34:56,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 807 transitions. [2024-11-27 20:34:56,503 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 807 transitions. Word has length 345 [2024-11-27 20:34:56,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:56,504 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 807 transitions. [2024-11-27 20:34:56,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 20.25) internal successors, (243), 13 states have internal predecessors, (243), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-27 20:34:56,504 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 807 transitions. [2024-11-27 20:34:56,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-27 20:34:56,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:56,507 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:56,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-27 20:34:56,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-27 20:34:56,708 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:34:56,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:56,708 INFO L85 PathProgramCache]: Analyzing trace with hash -785251927, now seen corresponding path program 1 times [2024-11-27 20:34:56,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:56,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111834378] [2024-11-27 20:34:56,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:56,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:56,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:34:56,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [469005461] [2024-11-27 20:34:56,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:34:56,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:56,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:56,768 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:56,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-27 20:34:56,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:34:56,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:34:56,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:58,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:34:58,455 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:58,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:58,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111834378] [2024-11-27 20:34:58,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:34:58,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469005461] [2024-11-27 20:34:58,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469005461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:58,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:58,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-27 20:34:58,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558335282] [2024-11-27 20:34:58,614 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:58,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 20:34:58,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:58,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 20:34:58,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:34:58,618 INFO L87 Difference]: Start difference. First operand 696 states and 807 transitions. Second operand has 12 states, 11 states have (on average 22.272727272727273) internal successors, (245), 12 states have internal predecessors, (245), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-27 20:35:00,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:00,602 INFO L93 Difference]: Finished difference Result 702 states and 808 transitions. [2024-11-27 20:35:00,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:35:00,603 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 22.272727272727273) internal successors, (245), 12 states have internal predecessors, (245), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 347 [2024-11-27 20:35:00,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:00,606 INFO L225 Difference]: With dead ends: 702 [2024-11-27 20:35:00,606 INFO L226 Difference]: Without dead ends: 698 [2024-11-27 20:35:00,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:35:00,611 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 49 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:00,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1707 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 20:35:00,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2024-11-27 20:35:00,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 696. [2024-11-27 20:35:00,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 614 states have (on average 1.1579804560260587) internal successors, (711), 644 states have internal predecessors, (711), 46 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-27 20:35:00,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 803 transitions. [2024-11-27 20:35:00,694 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 803 transitions. Word has length 347 [2024-11-27 20:35:00,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:00,694 INFO L471 AbstractCegarLoop]: Abstraction has 696 states and 803 transitions. [2024-11-27 20:35:00,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 22.272727272727273) internal successors, (245), 12 states have internal predecessors, (245), 4 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2024-11-27 20:35:00,695 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 803 transitions. [2024-11-27 20:35:00,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-27 20:35:00,697 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:00,697 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:00,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-27 20:35:00,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-27 20:35:00,898 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:35:00,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:00,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1246896763, now seen corresponding path program 1 times [2024-11-27 20:35:00,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:00,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105901002] [2024-11-27 20:35:00,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:00,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:00,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:35:01,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:01,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105901002] [2024-11-27 20:35:01,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105901002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:01,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383165422] [2024-11-27 20:35:01,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:01,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:01,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:01,536 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:01,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-27 20:35:01,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:01,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:35:01,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:03,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 62 proven. 298 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:35:03,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:03,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383165422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:03,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:35:03,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-27 20:35:03,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858494740] [2024-11-27 20:35:03,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:03,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:35:03,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:03,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:35:03,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:35:03,232 INFO L87 Difference]: Start difference. First operand 696 states and 803 transitions. Second operand has 17 states, 16 states have (on average 26.6875) internal successors, (427), 17 states have internal predecessors, (427), 7 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-27 20:35:07,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:07,884 INFO L93 Difference]: Finished difference Result 696 states and 803 transitions. [2024-11-27 20:35:07,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:35:07,885 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 26.6875) internal successors, (427), 17 states have internal predecessors, (427), 7 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) Word has length 350 [2024-11-27 20:35:07,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:07,887 INFO L225 Difference]: With dead ends: 696 [2024-11-27 20:35:07,887 INFO L226 Difference]: Without dead ends: 695 [2024-11-27 20:35:07,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2024-11-27 20:35:07,888 INFO L435 NwaCegarLoop]: 163 mSDtfsCounter, 588 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 1245 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:07,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 1245 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-27 20:35:07,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-27 20:35:07,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2024-11-27 20:35:07,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 614 states have (on average 1.1498371335504887) internal successors, (706), 643 states have internal predecessors, (706), 46 states have call successors, (46), 5 states have call predecessors, (46), 5 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-27 20:35:07,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 798 transitions. [2024-11-27 20:35:07,959 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 798 transitions. Word has length 350 [2024-11-27 20:35:07,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:07,960 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 798 transitions. [2024-11-27 20:35:07,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 26.6875) internal successors, (427), 17 states have internal predecessors, (427), 7 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 7 states have call predecessors, (36), 7 states have call successors, (36) [2024-11-27 20:35:07,960 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 798 transitions. [2024-11-27 20:35:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-27 20:35:07,963 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:07,963 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:07,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:08,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:08,167 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:35:08,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:08,167 INFO L85 PathProgramCache]: Analyzing trace with hash 704414772, now seen corresponding path program 1 times [2024-11-27 20:35:08,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:08,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48409904] [2024-11-27 20:35:08,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:08,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:08,553 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:35:08,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:08,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48409904] [2024-11-27 20:35:08,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48409904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:08,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178530382] [2024-11-27 20:35:08,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:08,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:08,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:08,558 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:08,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-27 20:35:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:08,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:35:08,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:09,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 80 proven. 1000 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-27 20:35:09,278 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:09,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-27 20:35:09,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178530382] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:35:09,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:35:09,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 22 [2024-11-27 20:35:09,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358322758] [2024-11-27 20:35:09,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:09,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:35:09,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:09,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:35:09,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:35:09,906 INFO L87 Difference]: Start difference. First operand 695 states and 798 transitions. Second operand has 22 states, 22 states have (on average 23.181818181818183) internal successors, (510), 22 states have internal predecessors, (510), 9 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 9 states have call predecessors, (62), 9 states have call successors, (62) [2024-11-27 20:35:10,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:10,781 INFO L93 Difference]: Finished difference Result 1532 states and 1660 transitions. [2024-11-27 20:35:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-27 20:35:10,782 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 23.181818181818183) internal successors, (510), 22 states have internal predecessors, (510), 9 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 9 states have call predecessors, (62), 9 states have call successors, (62) Word has length 355 [2024-11-27 20:35:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:10,785 INFO L225 Difference]: With dead ends: 1532 [2024-11-27 20:35:10,785 INFO L226 Difference]: Without dead ends: 1359 [2024-11-27 20:35:10,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 739 GetRequests, 700 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=549, Invalid=1091, Unknown=0, NotChecked=0, Total=1640 [2024-11-27 20:35:10,786 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 1062 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 1973 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:10,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 1973 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:35:10,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2024-11-27 20:35:10,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1094. [2024-11-27 20:35:10,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1094 states, 977 states have (on average 1.1473899692937564) internal successors, (1121), 1011 states have internal predecessors, (1121), 76 states have call successors, (76), 11 states have call predecessors, (76), 11 states have return successors, (76), 71 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-27 20:35:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1094 states to 1094 states and 1273 transitions. [2024-11-27 20:35:10,885 INFO L78 Accepts]: Start accepts. Automaton has 1094 states and 1273 transitions. Word has length 355 [2024-11-27 20:35:10,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:10,886 INFO L471 AbstractCegarLoop]: Abstraction has 1094 states and 1273 transitions. [2024-11-27 20:35:10,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 23.181818181818183) internal successors, (510), 22 states have internal predecessors, (510), 9 states have call successors, (62), 6 states have call predecessors, (62), 6 states have return successors, (62), 9 states have call predecessors, (62), 9 states have call successors, (62) [2024-11-27 20:35:10,886 INFO L276 IsEmpty]: Start isEmpty. Operand 1094 states and 1273 transitions. [2024-11-27 20:35:10,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2024-11-27 20:35:10,888 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:10,888 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:10,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:11,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:11,089 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr81ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:35:11,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:11,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1818248326, now seen corresponding path program 1 times [2024-11-27 20:35:11,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:11,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084098188] [2024-11-27 20:35:11,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:11,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:11,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-27 20:35:11,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:11,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084098188] [2024-11-27 20:35:11,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084098188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:11,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398837030] [2024-11-27 20:35:11,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:11,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:11,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:11,641 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:11,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-27 20:35:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:11,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:35:11,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:13,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 176 proven. 184 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-27 20:35:13,413 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:13,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398837030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:13,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:35:13,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2024-11-27 20:35:13,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94942125] [2024-11-27 20:35:13,538 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:13,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:35:13,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:13,539 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:35:13,540 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=428, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:35:13,540 INFO L87 Difference]: Start difference. First operand 1094 states and 1273 transitions. Second operand has 21 states, 20 states have (on average 25.7) internal successors, (514), 21 states have internal predecessors, (514), 8 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 8 states have call predecessors, (44), 8 states have call successors, (44) [2024-11-27 20:35:17,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:17,134 INFO L93 Difference]: Finished difference Result 1094 states and 1273 transitions. [2024-11-27 20:35:17,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:35:17,135 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 25.7) internal successors, (514), 21 states have internal predecessors, (514), 8 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 8 states have call predecessors, (44), 8 states have call successors, (44) Word has length 366 [2024-11-27 20:35:17,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:17,137 INFO L225 Difference]: With dead ends: 1094 [2024-11-27 20:35:17,137 INFO L226 Difference]: Without dead ends: 1090 [2024-11-27 20:35:17,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=1011, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:35:17,138 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 995 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 2602 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:17,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 591 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2602 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-27 20:35:17,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2024-11-27 20:35:17,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1090. [2024-11-27 20:35:17,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 977 states have (on average 1.1156601842374616) internal successors, (1090), 1007 states have internal predecessors, (1090), 76 states have call successors, (76), 11 states have call predecessors, (76), 11 states have return successors, (76), 71 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-27 20:35:17,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1242 transitions. [2024-11-27 20:35:17,240 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1242 transitions. Word has length 366 [2024-11-27 20:35:17,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:17,240 INFO L471 AbstractCegarLoop]: Abstraction has 1090 states and 1242 transitions. [2024-11-27 20:35:17,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 25.7) internal successors, (514), 21 states have internal predecessors, (514), 8 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 8 states have call predecessors, (44), 8 states have call successors, (44) [2024-11-27 20:35:17,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1242 transitions. [2024-11-27 20:35:17,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-11-27 20:35:17,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:17,244 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:17,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:17,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-27 20:35:17,444 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr84ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:35:17,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:17,445 INFO L85 PathProgramCache]: Analyzing trace with hash -691435781, now seen corresponding path program 1 times [2024-11-27 20:35:17,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:17,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459160303] [2024-11-27 20:35:17,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:17,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:17,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:17,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-27 20:35:17,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:17,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459160303] [2024-11-27 20:35:17,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459160303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:17,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82547232] [2024-11-27 20:35:17,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:17,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:17,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:17,798 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:17,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-27 20:35:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:17,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:35:17,926 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-27 20:35:18,355 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:35:18,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82547232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:35:18,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:35:18,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-11-27 20:35:18,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491829624] [2024-11-27 20:35:18,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:35:18,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:35:18,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:18,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:35:18,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:35:18,357 INFO L87 Difference]: Start difference. First operand 1090 states and 1242 transitions. Second operand has 7 states, 6 states have (on average 43.666666666666664) internal successors, (262), 7 states have internal predecessors, (262), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 20:35:19,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:19,012 INFO L93 Difference]: Finished difference Result 1090 states and 1242 transitions. [2024-11-27 20:35:19,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:35:19,012 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 43.666666666666664) internal successors, (262), 7 states have internal predecessors, (262), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 369 [2024-11-27 20:35:19,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:19,015 INFO L225 Difference]: With dead ends: 1090 [2024-11-27 20:35:19,015 INFO L226 Difference]: Without dead ends: 1088 [2024-11-27 20:35:19,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:35:19,016 INFO L435 NwaCegarLoop]: 213 mSDtfsCounter, 111 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:19,016 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 504 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:35:19,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1088 states. [2024-11-27 20:35:19,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1088 to 1088. [2024-11-27 20:35:19,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1088 states, 977 states have (on average 1.0992835209825997) internal successors, (1074), 1005 states have internal predecessors, (1074), 76 states have call successors, (76), 11 states have call predecessors, (76), 11 states have return successors, (76), 71 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-27 20:35:19,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1226 transitions. [2024-11-27 20:35:19,132 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1226 transitions. Word has length 369 [2024-11-27 20:35:19,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:19,133 INFO L471 AbstractCegarLoop]: Abstraction has 1088 states and 1226 transitions. [2024-11-27 20:35:19,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 43.666666666666664) internal successors, (262), 7 states have internal predecessors, (262), 4 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-27 20:35:19,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1226 transitions. [2024-11-27 20:35:19,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-11-27 20:35:19,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:19,136 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-11-27 20:35:19,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-27 20:35:19,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-27 20:35:19,336 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:35:19,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:19,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1088323540, now seen corresponding path program 3 times [2024-11-27 20:35:19,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:19,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657993542] [2024-11-27 20:35:19,337 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:35:19,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:19,380 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 20:35:19,380 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:35:20,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 60 proven. 506 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:35:20,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:20,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657993542] [2024-11-27 20:35:20,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657993542] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:20,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302533622] [2024-11-27 20:35:20,145 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:35:20,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:20,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:20,147 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:20,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-27 20:35:20,213 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 20:35:20,214 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:35:20,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:35:20,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:20,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 66 proven. 140 refuted. 0 times theorem prover too weak. 1306 trivial. 0 not checked. [2024-11-27 20:35:20,911 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:21,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302533622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:35:21,245 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:35:21,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 7] total 22 [2024-11-27 20:35:21,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557274815] [2024-11-27 20:35:21,245 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:21,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 20:35:21,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:21,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 20:35:21,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:35:21,247 INFO L87 Difference]: Start difference. First operand 1088 states and 1226 transitions. Second operand has 23 states, 22 states have (on average 16.59090909090909) internal successors, (365), 23 states have internal predecessors, (365), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) [2024-11-27 20:35:25,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:25,320 INFO L93 Difference]: Finished difference Result 1136 states and 1264 transitions. [2024-11-27 20:35:25,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-27 20:35:25,320 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 16.59090909090909) internal successors, (365), 23 states have internal predecessors, (365), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) Word has length 379 [2024-11-27 20:35:25,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:25,322 INFO L225 Difference]: With dead ends: 1136 [2024-11-27 20:35:25,322 INFO L226 Difference]: Without dead ends: 1135 [2024-11-27 20:35:25,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=715, Invalid=2707, Unknown=0, NotChecked=0, Total=3422 [2024-11-27 20:35:25,323 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 2598 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 2132 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 2346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 2132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:25,323 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 473 Invalid, 2346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 2132 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-27 20:35:25,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-27 20:35:25,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1087. [2024-11-27 20:35:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 977 states have (on average 1.0931422722620265) internal successors, (1068), 1004 states have internal predecessors, (1068), 76 states have call successors, (76), 11 states have call predecessors, (76), 11 states have return successors, (76), 71 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-27 20:35:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1220 transitions. [2024-11-27 20:35:25,407 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1220 transitions. Word has length 379 [2024-11-27 20:35:25,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:25,407 INFO L471 AbstractCegarLoop]: Abstraction has 1087 states and 1220 transitions. [2024-11-27 20:35:25,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 16.59090909090909) internal successors, (365), 23 states have internal predecessors, (365), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) [2024-11-27 20:35:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1220 transitions. [2024-11-27 20:35:25,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-11-27 20:35:25,409 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:25,409 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:25,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-27 20:35:25,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:25,610 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr91ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:35:25,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1619301499, now seen corresponding path program 1 times [2024-11-27 20:35:25,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:25,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336534210] [2024-11-27 20:35:25,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:25,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:35:25,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305405674] [2024-11-27 20:35:25,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:25,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:25,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:25,644 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:25,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-27 20:35:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:25,803 INFO L256 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:35:25,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:26,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1372 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 20:35:26,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:27,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1372 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 20:35:27,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:27,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336534210] [2024-11-27 20:35:27,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:35:27,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305405674] [2024-11-27 20:35:27,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305405674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:35:27,442 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:35:27,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2024-11-27 20:35:27,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223696678] [2024-11-27 20:35:27,443 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:27,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:35:27,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:27,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:35:27,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:35:27,445 INFO L87 Difference]: Start difference. First operand 1087 states and 1220 transitions. Second operand has 14 states, 13 states have (on average 41.07692307692308) internal successors, (534), 14 states have internal predecessors, (534), 8 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2024-11-27 20:35:29,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:35:29,632 INFO L93 Difference]: Finished difference Result 1124 states and 1261 transitions. [2024-11-27 20:35:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:35:29,632 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 41.07692307692308) internal successors, (534), 14 states have internal predecessors, (534), 8 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) Word has length 381 [2024-11-27 20:35:29,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:35:29,634 INFO L225 Difference]: With dead ends: 1124 [2024-11-27 20:35:29,635 INFO L226 Difference]: Without dead ends: 1123 [2024-11-27 20:35:29,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 764 GetRequests, 748 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:35:29,635 INFO L435 NwaCegarLoop]: 191 mSDtfsCounter, 536 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 1625 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 1656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:35:29,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 1209 Invalid, 1656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1625 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 20:35:29,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2024-11-27 20:35:29,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1091. [2024-11-27 20:35:29,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 981 states have (on average 1.091743119266055) internal successors, (1071), 1007 states have internal predecessors, (1071), 76 states have call successors, (76), 11 states have call predecessors, (76), 11 states have return successors, (76), 72 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-27 20:35:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1223 transitions. [2024-11-27 20:35:29,732 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1223 transitions. Word has length 381 [2024-11-27 20:35:29,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:35:29,732 INFO L471 AbstractCegarLoop]: Abstraction has 1091 states and 1223 transitions. [2024-11-27 20:35:29,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 41.07692307692308) internal successors, (534), 14 states have internal predecessors, (534), 8 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2024-11-27 20:35:29,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1223 transitions. [2024-11-27 20:35:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-27 20:35:29,735 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:35:29,735 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:35:29,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2024-11-27 20:35:29,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:29,936 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr97ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:35:29,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:35:29,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1006208843, now seen corresponding path program 1 times [2024-11-27 20:35:29,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:35:29,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031157265] [2024-11-27 20:35:29,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:29,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:35:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:35:29,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [155691179] [2024-11-27 20:35:29,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:35:29,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:35:29,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:35:30,003 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:35:30,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-27 20:35:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:35:30,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 20:35:30,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:35:32,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1372 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 20:35:32,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:35:34,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1372 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-27 20:35:34,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:35:34,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031157265] [2024-11-27 20:35:34,131 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:35:34,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155691179] [2024-11-27 20:35:34,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155691179] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:35:34,131 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:35:34,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2024-11-27 20:35:34,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395528163] [2024-11-27 20:35:34,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:35:34,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:35:34,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:35:34,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:35:34,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:35:34,133 INFO L87 Difference]: Start difference. First operand 1091 states and 1223 transitions. Second operand has 22 states, 21 states have (on average 26.0) internal successors, (546), 22 states have internal predecessors, (546), 8 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2024-11-27 20:35:41,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:35:49,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:35:50,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:35:53,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:35:59,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:05,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:07,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:11,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:18,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:20,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:23,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:26,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:31,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:33,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:37,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:39,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:44,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:50,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:53,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:57,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:36:59,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:01,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:06,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:13,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:18,032 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:21,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:22,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:25,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:29,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:37,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:38,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:43,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:48,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:53,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:54,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:56,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:37:58,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:38:03,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:38:08,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:38:08,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:38:08,432 INFO L93 Difference]: Finished difference Result 1151 states and 1302 transitions. [2024-11-27 20:38:08,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-27 20:38:08,432 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 26.0) internal successors, (546), 22 states have internal predecessors, (546), 8 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) Word has length 387 [2024-11-27 20:38:08,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:38:08,435 INFO L225 Difference]: With dead ends: 1151 [2024-11-27 20:38:08,435 INFO L226 Difference]: Without dead ends: 1087 [2024-11-27 20:38:08,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 752 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 14.3s TimeCoverageRelationStatistics Valid=296, Invalid=634, Unknown=0, NotChecked=0, Total=930 [2024-11-27 20:38:08,436 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 484 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 3319 mSolverCounterSat, 28 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 3359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3319 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 140.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:38:08,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 1797 Invalid, 3359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 3319 Invalid, 12 Unknown, 0 Unchecked, 140.9s Time] [2024-11-27 20:38:08,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1087 states. [2024-11-27 20:38:08,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1087 to 1043. [2024-11-27 20:38:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 936 states have (on average 1.0940170940170941) internal successors, (1024), 961 states have internal predecessors, (1024), 73 states have call successors, (73), 11 states have call predecessors, (73), 11 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-27 20:38:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1170 transitions. [2024-11-27 20:38:08,538 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1170 transitions. Word has length 387 [2024-11-27 20:38:08,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:38:08,538 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1170 transitions. [2024-11-27 20:38:08,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 26.0) internal successors, (546), 22 states have internal predecessors, (546), 8 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 8 states have call predecessors, (46), 8 states have call successors, (46) [2024-11-27 20:38:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1170 transitions. [2024-11-27 20:38:08,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-27 20:38:08,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:38:08,542 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:38:08,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-27 20:38:08,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2024-11-27 20:38:08,746 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:38:08,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:38:08,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1326812579, now seen corresponding path program 4 times [2024-11-27 20:38:08,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:38:08,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518094617] [2024-11-27 20:38:08,747 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:38:08,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:38:08,812 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:38:08,812 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:38:08,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707066281] [2024-11-27 20:38:08,815 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:38:08,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:38:08,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:38:08,820 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:38:08,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-27 20:38:09,020 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:38:09,021 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:38:09,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 20:38:09,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:38:11,585 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 20:38:11,586 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:38:11,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:38:11,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518094617] [2024-11-27 20:38:11,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:38:11,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707066281] [2024-11-27 20:38:11,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707066281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:38:11,799 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:38:11,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-27 20:38:11,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128249886] [2024-11-27 20:38:11,799 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:38:11,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:38:11,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:38:11,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:38:11,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:38:11,801 INFO L87 Difference]: Start difference. First operand 1043 states and 1170 transitions. Second operand has 17 states, 16 states have (on average 18.75) internal successors, (300), 17 states have internal predecessors, (300), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:38:15,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:38:15,107 INFO L93 Difference]: Finished difference Result 1069 states and 1203 transitions. [2024-11-27 20:38:15,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:38:15,108 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 18.75) internal successors, (300), 17 states have internal predecessors, (300), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 427 [2024-11-27 20:38:15,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:38:15,110 INFO L225 Difference]: With dead ends: 1069 [2024-11-27 20:38:15,110 INFO L226 Difference]: Without dead ends: 1068 [2024-11-27 20:38:15,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:38:15,111 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 107 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 5812 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 5817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:38:15,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1154 Invalid, 5817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 5812 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-27 20:38:15,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2024-11-27 20:38:15,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1043. [2024-11-27 20:38:15,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 936 states have (on average 1.0929487179487178) internal successors, (1023), 961 states have internal predecessors, (1023), 73 states have call successors, (73), 11 states have call predecessors, (73), 11 states have return successors, (73), 70 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-27 20:38:15,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1169 transitions. [2024-11-27 20:38:15,210 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1169 transitions. Word has length 427 [2024-11-27 20:38:15,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:38:15,210 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1169 transitions. [2024-11-27 20:38:15,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 18.75) internal successors, (300), 17 states have internal predecessors, (300), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:38:15,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1169 transitions. [2024-11-27 20:38:15,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-27 20:38:15,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:38:15,213 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:38:15,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-27 20:38:15,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:38:15,414 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:38:15,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:38:15,414 INFO L85 PathProgramCache]: Analyzing trace with hash -538392539, now seen corresponding path program 2 times [2024-11-27 20:38:15,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:38:15,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165086614] [2024-11-27 20:38:15,415 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:38:15,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:38:15,473 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:38:15,473 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:38:15,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1631838111] [2024-11-27 20:38:15,475 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:38:15,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:38:15,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:38:15,480 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:38:15,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-27 20:38:15,637 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:38:15,638 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:38:15,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 20:38:15,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:38:17,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 608 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 20:38:17,512 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:38:22,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:38:22,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165086614] [2024-11-27 20:38:22,383 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:38:22,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631838111] [2024-11-27 20:38:22,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631838111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:38:22,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:38:22,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-27 20:38:22,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287870999] [2024-11-27 20:38:22,384 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:38:22,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-27 20:38:22,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:38:22,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-27 20:38:22,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=203, Unknown=1, NotChecked=0, Total=272 [2024-11-27 20:38:22,385 INFO L87 Difference]: Start difference. First operand 1043 states and 1169 transitions. Second operand has 14 states, 13 states have (on average 23.23076923076923) internal successors, (302), 14 states have internal predecessors, (302), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 20:38:24,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:38:24,519 INFO L93 Difference]: Finished difference Result 1074 states and 1202 transitions. [2024-11-27 20:38:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-27 20:38:24,519 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 23.23076923076923) internal successors, (302), 14 states have internal predecessors, (302), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 429 [2024-11-27 20:38:24,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:38:24,521 INFO L225 Difference]: With dead ends: 1074 [2024-11-27 20:38:24,522 INFO L226 Difference]: Without dead ends: 1067 [2024-11-27 20:38:24,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 514 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=68, Invalid=203, Unknown=1, NotChecked=0, Total=272 [2024-11-27 20:38:24,522 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 50 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 3219 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 3225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 3219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:38:24,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 2066 Invalid, 3225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 3219 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 20:38:24,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2024-11-27 20:38:24,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1066. [2024-11-27 20:38:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 959 states have (on average 1.0928050052137643) internal successors, (1048), 983 states have internal predecessors, (1048), 73 states have call successors, (73), 11 states have call predecessors, (73), 11 states have return successors, (73), 71 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-27 20:38:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1194 transitions. [2024-11-27 20:38:24,689 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1194 transitions. Word has length 429 [2024-11-27 20:38:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:38:24,689 INFO L471 AbstractCegarLoop]: Abstraction has 1066 states and 1194 transitions. [2024-11-27 20:38:24,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 23.23076923076923) internal successors, (302), 14 states have internal predecessors, (302), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 20:38:24,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1194 transitions. [2024-11-27 20:38:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-27 20:38:24,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:38:24,691 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:38:24,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-27 20:38:24,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:38:24,892 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:38:24,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:38:24,892 INFO L85 PathProgramCache]: Analyzing trace with hash 489700665, now seen corresponding path program 3 times [2024-11-27 20:38:24,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:38:24,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085097721] [2024-11-27 20:38:24,893 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:38:24,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:38:24,968 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-11-27 20:38:24,968 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:38:24,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1767076483] [2024-11-27 20:38:24,970 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:38:24,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:38:24,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:38:24,973 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:38:24,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-27 20:38:25,193 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:38:25,194 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:38:25,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 20:38:25,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:38:38,846 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 501 proven. 95 refuted. 0 times theorem prover too weak. 1312 trivial. 0 not checked. [2024-11-27 20:38:38,846 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:39:33,221 WARN L286 SmtUtils]: Spent 6.73s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 20:39:35,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:39:35,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085097721] [2024-11-27 20:39:35,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:39:35,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767076483] [2024-11-27 20:39:35,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767076483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:39:35,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:39:35,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-27 20:39:35,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260214569] [2024-11-27 20:39:35,615 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:39:35,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:39:35,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:39:35,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:39:35,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=570, Unknown=8, NotChecked=0, Total=702 [2024-11-27 20:39:35,616 INFO L87 Difference]: Start difference. First operand 1066 states and 1194 transitions. Second operand has 15 states, 14 states have (on average 12.857142857142858) internal successors, (180), 15 states have internal predecessors, (180), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-27 20:39:44,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:39:48,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:39:49,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:39:52,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:39:55,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:39:59,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:03,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:08,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:10,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:11,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:21,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:25,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:29,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:33,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:37,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:41,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:45,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:49,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:53,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:40:57,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:41:01,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:41:05,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:41:09,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:41:13,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:41:15,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:41:16,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:41:24,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:41:30,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:41:34,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:41:36,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:41:41,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:41:47,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:41:52,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:41:58,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:42:01,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:42:03,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:42:03,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:03,551 INFO L93 Difference]: Finished difference Result 1098 states and 1214 transitions. [2024-11-27 20:42:03,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 20:42:03,552 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 12.857142857142858) internal successors, (180), 15 states have internal predecessors, (180), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 430 [2024-11-27 20:42:03,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:03,555 INFO L225 Difference]: With dead ends: 1098 [2024-11-27 20:42:03,555 INFO L226 Difference]: Without dead ends: 1005 [2024-11-27 20:42:03,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 525 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 55.6s TimeCoverageRelationStatistics Valid=276, Invalid=976, Unknown=8, NotChecked=0, Total=1260 [2024-11-27 20:42:03,556 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 627 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 62 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 142.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 143.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:03,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 249 Invalid, 2145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2064 Invalid, 19 Unknown, 0 Unchecked, 143.3s Time] [2024-11-27 20:42:03,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2024-11-27 20:42:03,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 984. [2024-11-27 20:42:03,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 884 states have (on average 1.0542986425339367) internal successors, (932), 905 states have internal predecessors, (932), 69 states have call successors, (69), 11 states have call predecessors, (69), 11 states have return successors, (69), 67 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-27 20:42:03,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1070 transitions. [2024-11-27 20:42:03,688 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1070 transitions. Word has length 430 [2024-11-27 20:42:03,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:03,689 INFO L471 AbstractCegarLoop]: Abstraction has 984 states and 1070 transitions. [2024-11-27 20:42:03,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 12.857142857142858) internal successors, (180), 15 states have internal predecessors, (180), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-27 20:42:03,689 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1070 transitions. [2024-11-27 20:42:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-27 20:42:03,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:03,692 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:42:03,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-11-27 20:42:03,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-27 20:42:03,893 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:42:03,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:03,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1999148377, now seen corresponding path program 2 times [2024-11-27 20:42:03,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:42:03,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118720978] [2024-11-27 20:42:03,895 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:42:03,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:42:03,954 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:42:03,955 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:42:03,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828321367] [2024-11-27 20:42:03,957 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:42:03,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:03,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:03,960 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:03,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-27 20:42:12,325 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:42:12,325 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:42:12,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:42:12,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:14,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 372 proven. 236 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 20:42:14,237 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:42:14,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:42:14,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118720978] [2024-11-27 20:42:14,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:42:14,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828321367] [2024-11-27 20:42:14,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828321367] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:42:14,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:42:14,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-27 20:42:14,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717382699] [2024-11-27 20:42:14,494 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:42:14,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:42:14,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:42:14,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:42:14,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:42:14,496 INFO L87 Difference]: Start difference. First operand 984 states and 1070 transitions. Second operand has 15 states, 14 states have (on average 21.714285714285715) internal successors, (304), 15 states have internal predecessors, (304), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 20:42:16,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:16,683 INFO L93 Difference]: Finished difference Result 984 states and 1070 transitions. [2024-11-27 20:42:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:42:16,683 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 21.714285714285715) internal successors, (304), 15 states have internal predecessors, (304), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 431 [2024-11-27 20:42:16,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:16,686 INFO L225 Difference]: With dead ends: 984 [2024-11-27 20:42:16,686 INFO L226 Difference]: Without dead ends: 969 [2024-11-27 20:42:16,686 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 424 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=194, Invalid=456, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:42:16,687 INFO L435 NwaCegarLoop]: 194 mSDtfsCounter, 324 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 1470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:16,687 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [324 Valid, 1056 Invalid, 1470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-27 20:42:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 969 states. [2024-11-27 20:42:16,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 969 to 969. [2024-11-27 20:42:16,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 872 states have (on average 1.0458715596330275) internal successors, (912), 891 states have internal predecessors, (912), 68 states have call successors, (68), 11 states have call predecessors, (68), 11 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-27 20:42:16,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1048 transitions. [2024-11-27 20:42:16,818 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1048 transitions. Word has length 431 [2024-11-27 20:42:16,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:16,819 INFO L471 AbstractCegarLoop]: Abstraction has 969 states and 1048 transitions. [2024-11-27 20:42:16,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 21.714285714285715) internal successors, (304), 15 states have internal predecessors, (304), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 20:42:16,819 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1048 transitions. [2024-11-27 20:42:16,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-11-27 20:42:16,823 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:16,823 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:42:16,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-27 20:42:17,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2024-11-27 20:42:17,024 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:42:17,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:17,024 INFO L85 PathProgramCache]: Analyzing trace with hash 2014202529, now seen corresponding path program 5 times [2024-11-27 20:42:17,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:42:17,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030102254] [2024-11-27 20:42:17,025 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:42:17,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:42:17,179 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-27 20:42:17,179 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:42:17,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [348075022] [2024-11-27 20:42:17,182 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:42:17,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:17,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:17,187 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:17,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-27 20:42:17,524 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-27 20:42:17,524 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:42:17,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-27 20:42:17,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:20,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 0 proven. 920 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 20:42:20,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:42:21,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:42:21,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030102254] [2024-11-27 20:42:21,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:42:21,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348075022] [2024-11-27 20:42:21,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348075022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:42:21,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:42:21,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-11-27 20:42:21,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987800967] [2024-11-27 20:42:21,024 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:42:21,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:42:21,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:42:21,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:42:21,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:42:21,025 INFO L87 Difference]: Start difference. First operand 969 states and 1048 transitions. Second operand has 21 states, 20 states have (on average 17.95) internal successors, (359), 21 states have internal predecessors, (359), 7 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2024-11-27 20:42:25,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:42:25,683 INFO L93 Difference]: Finished difference Result 979 states and 1059 transitions. [2024-11-27 20:42:25,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:42:25,684 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 17.95) internal successors, (359), 21 states have internal predecessors, (359), 7 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) Word has length 511 [2024-11-27 20:42:25,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:42:25,688 INFO L225 Difference]: With dead ends: 979 [2024-11-27 20:42:25,688 INFO L226 Difference]: Without dead ends: 978 [2024-11-27 20:42:25,689 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:42:25,689 INFO L435 NwaCegarLoop]: 159 mSDtfsCounter, 84 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 8065 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 8070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:42:25,689 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 1437 Invalid, 8070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8065 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-27 20:42:25,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2024-11-27 20:42:25,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 969. [2024-11-27 20:42:25,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 872 states have (on average 1.0447247706422018) internal successors, (911), 891 states have internal predecessors, (911), 68 states have call successors, (68), 11 states have call predecessors, (68), 11 states have return successors, (68), 66 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-27 20:42:25,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1047 transitions. [2024-11-27 20:42:25,901 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1047 transitions. Word has length 511 [2024-11-27 20:42:25,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:42:25,902 INFO L471 AbstractCegarLoop]: Abstraction has 969 states and 1047 transitions. [2024-11-27 20:42:25,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 17.95) internal successors, (359), 21 states have internal predecessors, (359), 7 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2024-11-27 20:42:25,904 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1047 transitions. [2024-11-27 20:42:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-27 20:42:25,907 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:42:25,908 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:42:25,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-11-27 20:42:26,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:26,111 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:42:26,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:42:26,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1381614173, now seen corresponding path program 3 times [2024-11-27 20:42:26,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:42:26,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581436719] [2024-11-27 20:42:26,113 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:42:26,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:42:26,221 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-27 20:42:26,222 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:42:26,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [368827332] [2024-11-27 20:42:26,225 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:42:26,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:42:26,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:42:26,231 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:42:26,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-27 20:42:26,427 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:42:26,427 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:42:26,430 INFO L256 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 20:42:26,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:42:46,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2780 backedges. 657 proven. 95 refuted. 0 times theorem prover too weak. 2028 trivial. 0 not checked. [2024-11-27 20:42:46,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:43:02,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:43:02,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581436719] [2024-11-27 20:43:02,534 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:43:02,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368827332] [2024-11-27 20:43:02,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368827332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:43:02,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:43:02,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-27 20:43:02,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556880742] [2024-11-27 20:43:02,535 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:43:02,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:43:02,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:43:02,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:43:02,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=598, Unknown=1, NotChecked=0, Total=756 [2024-11-27 20:43:02,536 INFO L87 Difference]: Start difference. First operand 969 states and 1047 transitions. Second operand has 16 states, 15 states have (on average 11.933333333333334) internal successors, (179), 16 states have internal predecessors, (179), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-27 20:43:20,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:43:24,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:43:29,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:43:33,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:43:37,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:43:43,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:43:49,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:43:53,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:43:57,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:44:03,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:44:07,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:44:19,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:44:24,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:44:24,639 INFO L93 Difference]: Finished difference Result 995 states and 1067 transitions. [2024-11-27 20:44:24,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-27 20:44:24,639 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 11.933333333333334) internal successors, (179), 16 states have internal predecessors, (179), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 513 [2024-11-27 20:44:24,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:44:24,641 INFO L225 Difference]: With dead ends: 995 [2024-11-27 20:44:24,641 INFO L226 Difference]: Without dead ends: 991 [2024-11-27 20:44:24,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 604 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 26.8s TimeCoverageRelationStatistics Valid=382, Invalid=1257, Unknown=1, NotChecked=0, Total=1640 [2024-11-27 20:44:24,642 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 440 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 47 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 2160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:44:24,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 245 Invalid, 2160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 2102 Invalid, 11 Unknown, 0 Unchecked, 73.5s Time] [2024-11-27 20:44:24,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-11-27 20:44:24,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 959. [2024-11-27 20:44:24,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 862 states have (on average 1.0290023201856149) internal successors, (887), 882 states have internal predecessors, (887), 68 states have call successors, (68), 11 states have call predecessors, (68), 11 states have return successors, (68), 65 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-27 20:44:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1023 transitions. [2024-11-27 20:44:24,762 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1023 transitions. Word has length 513 [2024-11-27 20:44:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:44:24,762 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1023 transitions. [2024-11-27 20:44:24,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 11.933333333333334) internal successors, (179), 16 states have internal predecessors, (179), 7 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-27 20:44:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1023 transitions. [2024-11-27 20:44:24,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2024-11-27 20:44:24,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:44:24,765 INFO L218 NwaCegarLoop]: trace histogram [33, 33, 33, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:44:24,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-27 20:44:24,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:44:24,966 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:44:24,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:44:24,966 INFO L85 PathProgramCache]: Analyzing trace with hash -199679995, now seen corresponding path program 1 times [2024-11-27 20:44:24,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:44:24,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749271358] [2024-11-27 20:44:24,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:44:24,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:44:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:44:25,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [464412061] [2024-11-27 20:44:25,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:44:25,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:44:25,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:44:25,032 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:44:25,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-27 20:44:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:44:25,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-27 20:44:25,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:44:27,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3032 backedges. 0 proven. 920 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-27 20:44:27,985 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:44:28,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:44:28,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749271358] [2024-11-27 20:44:28,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:44:28,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464412061] [2024-11-27 20:44:28,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464412061] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:44:28,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:44:28,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-11-27 20:44:28,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329174236] [2024-11-27 20:44:28,319 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:44:28,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 20:44:28,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:44:28,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 20:44:28,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:44:28,320 INFO L87 Difference]: Start difference. First operand 959 states and 1023 transitions. Second operand has 23 states, 22 states have (on average 17.772727272727273) internal successors, (391), 23 states have internal predecessors, (391), 6 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2024-11-27 20:44:31,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:44:31,427 INFO L93 Difference]: Finished difference Result 970 states and 1033 transitions. [2024-11-27 20:44:31,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-27 20:44:31,427 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 17.772727272727273) internal successors, (391), 23 states have internal predecessors, (391), 6 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) Word has length 553 [2024-11-27 20:44:31,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:44:31,429 INFO L225 Difference]: With dead ends: 970 [2024-11-27 20:44:31,429 INFO L226 Difference]: Without dead ends: 920 [2024-11-27 20:44:31,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 669 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:44:31,430 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 9 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 6723 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1275 SdHoareTripleChecker+Invalid, 6724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:44:31,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1275 Invalid, 6724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6723 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-27 20:44:31,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2024-11-27 20:44:31,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 920. [2024-11-27 20:44:31,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 920 states, 826 states have (on average 1.0290556900726393) internal successors, (850), 846 states have internal predecessors, (850), 65 states have call successors, (65), 11 states have call predecessors, (65), 11 states have return successors, (65), 62 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-27 20:44:31,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 980 transitions. [2024-11-27 20:44:31,541 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 980 transitions. Word has length 553 [2024-11-27 20:44:31,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:44:31,541 INFO L471 AbstractCegarLoop]: Abstraction has 920 states and 980 transitions. [2024-11-27 20:44:31,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 17.772727272727273) internal successors, (391), 23 states have internal predecessors, (391), 6 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2024-11-27 20:44:31,542 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 980 transitions. [2024-11-27 20:44:31,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2024-11-27 20:44:31,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:44:31,546 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:44:31,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2024-11-27 20:44:31,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:44:31,746 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr91ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:44:31,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:44:31,747 INFO L85 PathProgramCache]: Analyzing trace with hash 263329535, now seen corresponding path program 2 times [2024-11-27 20:44:31,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:44:31,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647387570] [2024-11-27 20:44:31,747 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:44:31,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:44:31,812 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:44:31,812 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:44:31,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [347188442] [2024-11-27 20:44:31,814 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:44:31,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:44:31,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:44:31,818 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:44:31,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-27 20:44:32,008 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:44:32,009 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:44:32,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-27 20:44:32,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:44:33,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4108 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-11-27 20:44:33,627 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:44:35,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4108 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-11-27 20:44:35,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:44:35,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647387570] [2024-11-27 20:44:35,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:44:35,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347188442] [2024-11-27 20:44:35,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347188442] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:44:35,540 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:44:35,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-27 20:44:35,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142947326] [2024-11-27 20:44:35,540 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:44:35,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 20:44:35,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:44:35,543 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 20:44:35,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2024-11-27 20:44:35,543 INFO L87 Difference]: Start difference. First operand 920 states and 980 transitions. Second operand has 26 states, 25 states have (on average 35.52) internal successors, (888), 26 states have internal predecessors, (888), 14 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 14 states have call predecessors, (76), 14 states have call successors, (76) [2024-11-27 20:44:43,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:44:43,009 INFO L93 Difference]: Finished difference Result 1387 states and 1508 transitions. [2024-11-27 20:44:43,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-27 20:44:43,010 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 35.52) internal successors, (888), 26 states have internal predecessors, (888), 14 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 14 states have call predecessors, (76), 14 states have call successors, (76) Word has length 633 [2024-11-27 20:44:43,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:44:43,012 INFO L225 Difference]: With dead ends: 1387 [2024-11-27 20:44:43,012 INFO L226 Difference]: Without dead ends: 1386 [2024-11-27 20:44:43,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1274 GetRequests, 1240 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=384, Invalid=876, Unknown=0, NotChecked=0, Total=1260 [2024-11-27 20:44:43,013 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 1586 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 4467 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1586 SdHoareTripleChecker+Valid, 3606 SdHoareTripleChecker+Invalid, 4591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 4467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:44:43,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1586 Valid, 3606 Invalid, 4591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 4467 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-27 20:44:43,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2024-11-27 20:44:43,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1178. [2024-11-27 20:44:43,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1063 states have (on average 1.032925682031985) internal successors, (1098), 1083 states have internal predecessors, (1098), 86 states have call successors, (86), 11 states have call predecessors, (86), 11 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-27 20:44:43,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1270 transitions. [2024-11-27 20:44:43,166 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1270 transitions. Word has length 633 [2024-11-27 20:44:43,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:44:43,167 INFO L471 AbstractCegarLoop]: Abstraction has 1178 states and 1270 transitions. [2024-11-27 20:44:43,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 35.52) internal successors, (888), 26 states have internal predecessors, (888), 14 states have call successors, (76), 1 states have call predecessors, (76), 1 states have return successors, (76), 14 states have call predecessors, (76), 14 states have call successors, (76) [2024-11-27 20:44:43,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1270 transitions. [2024-11-27 20:44:43,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2024-11-27 20:44:43,169 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:44:43,169 INFO L218 NwaCegarLoop]: trace histogram [38, 38, 38, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:44:43,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-27 20:44:43,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:44:43,370 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:44:43,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:44:43,370 INFO L85 PathProgramCache]: Analyzing trace with hash 724771971, now seen corresponding path program 2 times [2024-11-27 20:44:43,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:44:43,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74764615] [2024-11-27 20:44:43,371 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:44:43,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:44:43,456 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:44:43,456 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:44:43,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65893331] [2024-11-27 20:44:43,458 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:44:43,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:44:43,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:44:43,461 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:44:43,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-27 20:44:43,671 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:44:43,672 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:44:43,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-27 20:44:43,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:44:47,183 INFO L134 CoverageAnalysis]: Checked inductivity of 4108 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-11-27 20:44:47,183 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:44:47,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:44:47,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74764615] [2024-11-27 20:44:47,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:44:47,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65893331] [2024-11-27 20:44:47,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65893331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:44:47,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:44:47,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2024-11-27 20:44:47,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85339181] [2024-11-27 20:44:47,577 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:44:47,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-27 20:44:47,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:44:47,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-27 20:44:47,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=729, Unknown=0, NotChecked=0, Total=870 [2024-11-27 20:44:47,578 INFO L87 Difference]: Start difference. First operand 1178 states and 1270 transitions. Second operand has 27 states, 26 states have (on average 17.307692307692307) internal successors, (450), 27 states have internal predecessors, (450), 7 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2024-11-27 20:44:51,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:44:51,882 INFO L93 Difference]: Finished difference Result 1193 states and 1284 transitions. [2024-11-27 20:44:51,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-27 20:44:51,882 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 17.307692307692307) internal successors, (450), 27 states have internal predecessors, (450), 7 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 637 [2024-11-27 20:44:51,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:44:51,885 INFO L225 Difference]: With dead ends: 1193 [2024-11-27 20:44:51,886 INFO L226 Difference]: Without dead ends: 1143 [2024-11-27 20:44:51,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 749 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=729, Unknown=0, NotChecked=0, Total=870 [2024-11-27 20:44:51,886 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 9 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 9636 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 9637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:44:51,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1729 Invalid, 9637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9636 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-27 20:44:51,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2024-11-27 20:44:52,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 1143. [2024-11-27 20:44:52,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1031 states have (on average 1.0329776915615907) internal successors, (1065), 1050 states have internal predecessors, (1065), 83 states have call successors, (83), 11 states have call predecessors, (83), 11 states have return successors, (83), 81 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-27 20:44:52,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1231 transitions. [2024-11-27 20:44:52,101 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1231 transitions. Word has length 637 [2024-11-27 20:44:52,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:44:52,101 INFO L471 AbstractCegarLoop]: Abstraction has 1143 states and 1231 transitions. [2024-11-27 20:44:52,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 17.307692307692307) internal successors, (450), 27 states have internal predecessors, (450), 7 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2024-11-27 20:44:52,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1231 transitions. [2024-11-27 20:44:52,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2024-11-27 20:44:52,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:44:52,107 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:44:52,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-11-27 20:44:52,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:44:52,311 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 137 more)] === [2024-11-27 20:44:52,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:44:52,312 INFO L85 PathProgramCache]: Analyzing trace with hash 962661889, now seen corresponding path program 3 times [2024-11-27 20:44:52,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:44:52,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69450636] [2024-11-27 20:44:52,312 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:44:52,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:44:52,452 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-27 20:44:52,452 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:44:52,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666380213] [2024-11-27 20:44:52,456 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:44:52,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:44:52,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:44:52,458 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:44:52,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49df45c0-fe09-4fc1-98a6-de5d0eb8dc7b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-27 20:44:53,132 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:44:53,133 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:44:53,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-27 20:44:53,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:45:50,968 INFO L134 CoverageAnalysis]: Checked inductivity of 5348 backedges. 906 proven. 68 refuted. 0 times theorem prover too weak. 4374 trivial. 0 not checked. [2024-11-27 20:45:50,968 INFO L312 TraceCheckSpWp]: Computing backward predicates...