./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound20.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_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/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_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/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_d9d4db86-df0c-4665-9fa9-98a494f48685/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 a32548a2dc110e6882a396485f8651f4c4262f9c106b055559dda4621561bdb6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:21:46,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:21:47,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:21:47,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:21:47,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:21:47,061 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:21:47,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:21:47,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:21:47,062 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:21:47,063 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:21:47,063 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:21:47,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:21:47,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:21:47,064 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:21:47,064 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:21:47,064 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:21:47,064 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:21:47,064 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:21:47,065 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:21:47,065 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:21:47,065 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:21:47,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:21:47,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:21:47,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:21:47,066 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:21:47,066 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:21:47,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:21:47,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:21:47,066 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:21:47,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:21:47,067 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:21:47,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:21:47,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:21:47,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:21:47,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:21:47,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:21:47,068 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:21:47,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:21:47,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:21:47,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:21:47,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:21:47,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:21:47,068 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:21:47,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:21:47,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:21:47,069 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:21:47,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:21:47,069 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:21:47,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:21:47,069 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:21:47,070 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_d9d4db86-df0c-4665-9fa9-98a494f48685/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 -> a32548a2dc110e6882a396485f8651f4c4262f9c106b055559dda4621561bdb6 [2024-11-28 03:21:47,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:21:47,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:21:47,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:21:47,423 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:21:47,424 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:21:47,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound20.c [2024-11-28 03:21:50,621 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/data/9928e1c0e/afd8fe0ac84f49ac8a15c9a6abf8f0ee/FLAGc4245a7b2 [2024-11-28 03:21:50,938 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:21:50,939 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound20.c [2024-11-28 03:21:50,950 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/data/9928e1c0e/afd8fe0ac84f49ac8a15c9a6abf8f0ee/FLAGc4245a7b2 [2024-11-28 03:21:51,203 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/data/9928e1c0e/afd8fe0ac84f49ac8a15c9a6abf8f0ee [2024-11-28 03:21:51,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:21:51,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:21:51,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:21:51,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:21:51,214 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:21:51,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c85473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51, skipping insertion in model container [2024-11-28 03:21:51,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,236 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:21:51,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:21:51,452 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:21:51,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:21:51,495 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:21:51,495 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51 WrapperNode [2024-11-28 03:21:51,495 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:21:51,496 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:21:51,496 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:21:51,497 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:21:51,504 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,530 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-11-28 03:21:51,530 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:21:51,531 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:21:51,531 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:21:51,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:21:51,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,542 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,560 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-28 03:21:51,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,565 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,569 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:21:51,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:21:51,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:21:51,586 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:21:51,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (1/1) ... [2024-11-28 03:21:51,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:21:51,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:51,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:21:51,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:21:51,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:21:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:21:51,664 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:21:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:21:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:21:51,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:21:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:21:51,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:21:51,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:21:51,738 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:21:51,741 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:21:52,023 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-28 03:21:52,023 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:21:52,034 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:21:52,035 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-28 03:21:52,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:52 BoogieIcfgContainer [2024-11-28 03:21:52,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:21:52,038 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:21:52,038 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:21:52,044 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:21:52,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:21:51" (1/3) ... [2024-11-28 03:21:52,045 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@897befa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:52, skipping insertion in model container [2024-11-28 03:21:52,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:51" (2/3) ... [2024-11-28 03:21:52,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@897befa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:52, skipping insertion in model container [2024-11-28 03:21:52,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:52" (3/3) ... [2024-11-28 03:21:52,047 INFO L128 eAbstractionObserver]: Analyzing ICFG lcm1_unwindbound20.c [2024-11-28 03:21:52,066 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:21:52,067 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG lcm1_unwindbound20.c that has 3 procedures, 47 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-11-28 03:21:52,125 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:21:52,143 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;@2a8e25e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:21:52,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-28 03:21:52,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 35 states have internal predecessors, (46), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:21:52,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 03:21:52,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:52,155 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:52,156 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:21:52,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:52,161 INFO L85 PathProgramCache]: Analyzing trace with hash 2022069437, now seen corresponding path program 1 times [2024-11-28 03:21:52,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:52,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224865925] [2024-11-28 03:21:52,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:52,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:52,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:21:52,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:52,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224865925] [2024-11-28 03:21:52,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224865925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:52,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776112108] [2024-11-28 03:21:52,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:52,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:52,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:52,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:52,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:21:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:52,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:21:52,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:52,434 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:21:52,434 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:21:52,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776112108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:52,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:21:52,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:21:52,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801053761] [2024-11-28 03:21:52,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:52,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:21:52,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:52,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:21:52,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:21:52,460 INFO L87 Difference]: Start difference. First operand has 47 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 35 states have internal predecessors, (46), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:21:52,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:52,482 INFO L93 Difference]: Finished difference Result 90 states and 132 transitions. [2024-11-28 03:21:52,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:21:52,484 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-11-28 03:21:52,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:52,491 INFO L225 Difference]: With dead ends: 90 [2024-11-28 03:21:52,491 INFO L226 Difference]: Without dead ends: 39 [2024-11-28 03:21:52,495 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:21:52,498 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:52,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:21:52,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-28 03:21:52,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-28 03:21:52,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:21:52,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2024-11-28 03:21:52,547 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 25 [2024-11-28 03:21:52,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:52,547 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2024-11-28 03:21:52,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 03:21:52,548 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2024-11-28 03:21:52,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 03:21:52,550 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:52,550 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:52,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:21:52,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:21:52,754 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:21:52,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:52,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2112941507, now seen corresponding path program 1 times [2024-11-28 03:21:52,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:52,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080232469] [2024-11-28 03:21:52,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:52,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:52,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:21:52,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:52,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080232469] [2024-11-28 03:21:52,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080232469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:52,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:52,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:21:52,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258758535] [2024-11-28 03:21:52,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:52,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:21:52,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:52,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:21:52,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:21:52,963 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:21:53,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:53,037 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2024-11-28 03:21:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:21:53,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2024-11-28 03:21:53,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:53,041 INFO L225 Difference]: With dead ends: 45 [2024-11-28 03:21:53,041 INFO L226 Difference]: Without dead ends: 43 [2024-11-28 03:21:53,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:21:53,042 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 11 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:53,042 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 112 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:21:53,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-28 03:21:53,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2024-11-28 03:21:53,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 states have internal predecessors, (37), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 03:21:53,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2024-11-28 03:21:53,058 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 25 [2024-11-28 03:21:53,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:53,061 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2024-11-28 03:21:53,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 03:21:53,062 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2024-11-28 03:21:53,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 03:21:53,063 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:53,063 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:53,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:21:53,064 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:21:53,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:53,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1187336732, now seen corresponding path program 1 times [2024-11-28 03:21:53,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:53,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332617777] [2024-11-28 03:21:53,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:53,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:53,391 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:21:53,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:53,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332617777] [2024-11-28 03:21:53,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332617777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:53,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:53,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:21:53,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210681243] [2024-11-28 03:21:53,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:53,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:21:53,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:53,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:21:53,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:21:53,394 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:21:53,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:53,659 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2024-11-28 03:21:53,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:21:53,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2024-11-28 03:21:53,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:53,660 INFO L225 Difference]: With dead ends: 62 [2024-11-28 03:21:53,660 INFO L226 Difference]: Without dead ends: 61 [2024-11-28 03:21:53,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:21:53,662 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 28 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:53,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 177 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:21:53,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-28 03:21:53,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 55. [2024-11-28 03:21:53,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 42 states have internal predecessors, (50), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:21:53,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2024-11-28 03:21:53,672 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 35 [2024-11-28 03:21:53,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:53,673 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2024-11-28 03:21:53,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:21:53,673 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2024-11-28 03:21:53,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 03:21:53,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:53,674 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:53,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:21:53,675 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:21:53,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:53,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1847266907, now seen corresponding path program 1 times [2024-11-28 03:21:53,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:53,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924733495] [2024-11-28 03:21:53,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:53,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:53,865 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:21:53,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:53,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924733495] [2024-11-28 03:21:53,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924733495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:53,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:53,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:21:53,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585820142] [2024-11-28 03:21:53,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:53,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:21:53,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:53,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:21:53,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:21:53,869 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:21:54,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:54,029 INFO L93 Difference]: Finished difference Result 91 states and 111 transitions. [2024-11-28 03:21:54,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:21:54,030 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2024-11-28 03:21:54,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:54,031 INFO L225 Difference]: With dead ends: 91 [2024-11-28 03:21:54,033 INFO L226 Difference]: Without dead ends: 63 [2024-11-28 03:21:54,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:21:54,035 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 22 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:54,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 144 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:21:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-28 03:21:54,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-28 03:21:54,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 49 states have internal predecessors, (57), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 03:21:54,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2024-11-28 03:21:54,053 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 36 [2024-11-28 03:21:54,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:54,053 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2024-11-28 03:21:54,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 03:21:54,054 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2024-11-28 03:21:54,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 03:21:54,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:54,055 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:54,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:21:54,055 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:21:54,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:54,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1777757559, now seen corresponding path program 1 times [2024-11-28 03:21:54,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:54,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326282388] [2024-11-28 03:21:54,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:54,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:54,294 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:21:54,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:54,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326282388] [2024-11-28 03:21:54,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326282388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:54,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:54,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:21:54,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447120004] [2024-11-28 03:21:54,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:54,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:21:54,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:54,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:21:54,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:21:54,296 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:21:54,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:54,749 INFO L93 Difference]: Finished difference Result 81 states and 94 transitions. [2024-11-28 03:21:54,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:21:54,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 45 [2024-11-28 03:21:54,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:54,752 INFO L225 Difference]: With dead ends: 81 [2024-11-28 03:21:54,752 INFO L226 Difference]: Without dead ends: 80 [2024-11-28 03:21:54,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:21:54,756 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 40 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:54,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 232 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:21:54,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-11-28 03:21:54,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 73. [2024-11-28 03:21:54,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.3076923076923077) internal successors, (68), 57 states have internal predecessors, (68), 10 states have call successors, (10), 5 states have call predecessors, (10), 5 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 03:21:54,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2024-11-28 03:21:54,778 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 45 [2024-11-28 03:21:54,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:54,778 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2024-11-28 03:21:54,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:21:54,779 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2024-11-28 03:21:54,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 03:21:54,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:54,780 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:54,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:21:54,780 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:21:54,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:54,783 INFO L85 PathProgramCache]: Analyzing trace with hash 724090606, now seen corresponding path program 1 times [2024-11-28 03:21:54,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:54,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697621895] [2024-11-28 03:21:54,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:54,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:55,042 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:21:55,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:55,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697621895] [2024-11-28 03:21:55,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697621895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:55,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:55,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:21:55,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529483132] [2024-11-28 03:21:55,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:55,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:21:55,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:55,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:21:55,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:21:55,044 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:21:55,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:55,301 INFO L93 Difference]: Finished difference Result 115 states and 139 transitions. [2024-11-28 03:21:55,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:21:55,302 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 46 [2024-11-28 03:21:55,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:55,303 INFO L225 Difference]: With dead ends: 115 [2024-11-28 03:21:55,303 INFO L226 Difference]: Without dead ends: 87 [2024-11-28 03:21:55,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:21:55,304 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 33 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:55,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 186 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:21:55,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-28 03:21:55,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 83. [2024-11-28 03:21:55,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 65 states have internal predecessors, (77), 11 states have call successors, (11), 6 states have call predecessors, (11), 6 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-28 03:21:55,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 99 transitions. [2024-11-28 03:21:55,314 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 99 transitions. Word has length 46 [2024-11-28 03:21:55,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:55,314 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 99 transitions. [2024-11-28 03:21:55,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 03:21:55,314 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions. [2024-11-28 03:21:55,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 03:21:55,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:55,315 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:55,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:21:55,316 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:21:55,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:55,316 INFO L85 PathProgramCache]: Analyzing trace with hash 724128342, now seen corresponding path program 1 times [2024-11-28 03:21:55,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:55,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464664480] [2024-11-28 03:21:55,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:55,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:55,519 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:21:55,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:55,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464664480] [2024-11-28 03:21:55,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464664480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:55,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54206006] [2024-11-28 03:21:55,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:55,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:55,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:55,523 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:55,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:21:55,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:55,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:21:55,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:55,748 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:21:55,748 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:21:55,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54206006] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:21:55,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:21:55,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 18 [2024-11-28 03:21:55,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602527565] [2024-11-28 03:21:55,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:21:55,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:21:55,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:55,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:21:55,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:21:55,945 INFO L87 Difference]: Start difference. First operand 83 states and 99 transitions. Second operand has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-28 03:21:56,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:56,860 INFO L93 Difference]: Finished difference Result 233 states and 283 transitions. [2024-11-28 03:21:56,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 03:21:56,861 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 46 [2024-11-28 03:21:56,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:56,863 INFO L225 Difference]: With dead ends: 233 [2024-11-28 03:21:56,865 INFO L226 Difference]: Without dead ends: 195 [2024-11-28 03:21:56,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:21:56,867 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 114 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:56,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 289 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:21:56,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-28 03:21:56,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 163. [2024-11-28 03:21:56,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 125 states have (on average 1.272) internal successors, (159), 130 states have internal predecessors, (159), 18 states have call successors, (18), 14 states have call predecessors, (18), 14 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 03:21:56,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 195 transitions. [2024-11-28 03:21:56,901 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 195 transitions. Word has length 46 [2024-11-28 03:21:56,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:56,901 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 195 transitions. [2024-11-28 03:21:56,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 states have internal predecessors, (55), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-28 03:21:56,902 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 195 transitions. [2024-11-28 03:21:56,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 03:21:56,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:56,903 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:56,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:21:57,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-28 03:21:57,104 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:21:57,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:57,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1101872824, now seen corresponding path program 1 times [2024-11-28 03:21:57,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:57,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56848514] [2024-11-28 03:21:57,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:57,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:57,284 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:21:57,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:57,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56848514] [2024-11-28 03:21:57,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56848514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:21:57,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:21:57,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:21:57,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431468429] [2024-11-28 03:21:57,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:21:57,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:21:57,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:57,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:21:57,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:21:57,288 INFO L87 Difference]: Start difference. First operand 163 states and 195 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:21:57,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:57,491 INFO L93 Difference]: Finished difference Result 270 states and 329 transitions. [2024-11-28 03:21:57,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:21:57,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 55 [2024-11-28 03:21:57,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:57,493 INFO L225 Difference]: With dead ends: 270 [2024-11-28 03:21:57,493 INFO L226 Difference]: Without dead ends: 205 [2024-11-28 03:21:57,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:21:57,495 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 32 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:57,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 172 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:21:57,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-28 03:21:57,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 183. [2024-11-28 03:21:57,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 141 states have (on average 1.2907801418439717) internal successors, (182), 146 states have internal predecessors, (182), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 03:21:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 226 transitions. [2024-11-28 03:21:57,518 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 226 transitions. Word has length 55 [2024-11-28 03:21:57,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:57,518 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 226 transitions. [2024-11-28 03:21:57,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:21:57,519 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 226 transitions. [2024-11-28 03:21:57,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:21:57,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:57,520 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:57,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:21:57,521 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:21:57,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:57,521 INFO L85 PathProgramCache]: Analyzing trace with hash 201782157, now seen corresponding path program 1 times [2024-11-28 03:21:57,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:57,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37051468] [2024-11-28 03:21:57,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:57,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:21:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:57,766 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:21:57,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:21:57,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37051468] [2024-11-28 03:21:57,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37051468] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:21:57,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844603181] [2024-11-28 03:21:57,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:57,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:57,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:21:57,770 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:21:57,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:21:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:21:57,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:21:57,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:21:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:21:58,060 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:21:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:21:58,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844603181] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:21:58,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:21:58,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 24 [2024-11-28 03:21:58,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360537315] [2024-11-28 03:21:58,289 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:21:58,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 03:21:58,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:21:58,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 03:21:58,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=469, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:21:58,291 INFO L87 Difference]: Start difference. First operand 183 states and 226 transitions. Second operand has 25 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 25 states have internal predecessors, (73), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-28 03:21:59,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:21:59,730 INFO L93 Difference]: Finished difference Result 379 states and 473 transitions. [2024-11-28 03:21:59,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 03:21:59,731 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 25 states have internal predecessors, (73), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) Word has length 56 [2024-11-28 03:21:59,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:21:59,734 INFO L225 Difference]: With dead ends: 379 [2024-11-28 03:21:59,734 INFO L226 Difference]: Without dead ends: 296 [2024-11-28 03:21:59,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=507, Invalid=1943, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 03:21:59,737 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 175 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:21:59,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 327 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:21:59,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-28 03:21:59,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 263. [2024-11-28 03:21:59,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 206 states have (on average 1.2766990291262137) internal successors, (263), 211 states have internal predecessors, (263), 29 states have call successors, (29), 22 states have call predecessors, (29), 22 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-28 03:21:59,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 321 transitions. [2024-11-28 03:21:59,766 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 321 transitions. Word has length 56 [2024-11-28 03:21:59,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:21:59,767 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 321 transitions. [2024-11-28 03:21:59,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.0416666666666665) internal successors, (73), 25 states have internal predecessors, (73), 11 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 11 states have call predecessors, (17), 11 states have call successors, (17) [2024-11-28 03:21:59,767 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 321 transitions. [2024-11-28 03:21:59,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 03:21:59,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:21:59,769 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:21:59,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:21:59,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:21:59,973 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:21:59,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:21:59,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1708398527, now seen corresponding path program 1 times [2024-11-28 03:21:59,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:21:59,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279010412] [2024-11-28 03:21:59,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:21:59,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:00,220 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:22:00,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:00,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279010412] [2024-11-28 03:22:00,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279010412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:00,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462044661] [2024-11-28 03:22:00,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:00,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:00,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:00,222 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:00,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:22:00,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:00,283 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:22:00,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:00,445 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:00,445 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:00,653 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:22:00,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462044661] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:00,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:00,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 10] total 21 [2024-11-28 03:22:00,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293058946] [2024-11-28 03:22:00,655 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:00,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 03:22:00,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:00,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 03:22:00,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:22:00,657 INFO L87 Difference]: Start difference. First operand 263 states and 321 transitions. Second operand has 21 states, 21 states have (on average 3.380952380952381) internal successors, (71), 21 states have internal predecessors, (71), 9 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-28 03:22:01,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:01,675 INFO L93 Difference]: Finished difference Result 471 states and 581 transitions. [2024-11-28 03:22:01,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 03:22:01,676 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.380952380952381) internal successors, (71), 21 states have internal predecessors, (71), 9 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) Word has length 59 [2024-11-28 03:22:01,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:01,678 INFO L225 Difference]: With dead ends: 471 [2024-11-28 03:22:01,679 INFO L226 Difference]: Without dead ends: 332 [2024-11-28 03:22:01,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 310 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=299, Invalid=1183, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 03:22:01,681 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 118 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:01,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 313 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:22:01,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-28 03:22:01,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 323. [2024-11-28 03:22:01,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 258 states have (on average 1.244186046511628) internal successors, (321), 263 states have internal predecessors, (321), 33 states have call successors, (33), 26 states have call predecessors, (33), 26 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-28 03:22:01,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 387 transitions. [2024-11-28 03:22:01,722 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 387 transitions. Word has length 59 [2024-11-28 03:22:01,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:01,723 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 387 transitions. [2024-11-28 03:22:01,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.380952380952381) internal successors, (71), 21 states have internal predecessors, (71), 9 states have call successors, (21), 5 states have call predecessors, (21), 5 states have return successors, (21), 9 states have call predecessors, (21), 9 states have call successors, (21) [2024-11-28 03:22:01,724 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 387 transitions. [2024-11-28 03:22:01,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 03:22:01,729 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:01,730 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:01,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:22:01,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:01,930 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:01,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:01,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1681109111, now seen corresponding path program 1 times [2024-11-28 03:22:01,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:01,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485626143] [2024-11-28 03:22:01,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:01,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:02,181 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:22:02,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:02,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485626143] [2024-11-28 03:22:02,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485626143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:02,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416561816] [2024-11-28 03:22:02,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:02,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:02,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:02,185 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:02,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:22:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:02,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:22:02,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:02,486 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:02,486 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:22:02,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416561816] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:02,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:22:02,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2024-11-28 03:22:02,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21036095] [2024-11-28 03:22:02,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:02,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:22:02,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:02,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:22:02,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:22:02,488 INFO L87 Difference]: Start difference. First operand 323 states and 387 transitions. Second operand has 11 states, 10 states have (on average 4.0) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-28 03:22:02,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:02,988 INFO L93 Difference]: Finished difference Result 391 states and 469 transitions. [2024-11-28 03:22:02,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 03:22:02,989 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.0) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 65 [2024-11-28 03:22:02,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:02,991 INFO L225 Difference]: With dead ends: 391 [2024-11-28 03:22:02,991 INFO L226 Difference]: Without dead ends: 388 [2024-11-28 03:22:02,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=168, Invalid=824, Unknown=0, NotChecked=0, Total=992 [2024-11-28 03:22:02,993 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 59 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:02,994 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 141 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:22:02,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-28 03:22:03,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 293. [2024-11-28 03:22:03,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 234 states have (on average 1.1623931623931625) internal successors, (272), 237 states have internal predecessors, (272), 31 states have call successors, (31), 25 states have call predecessors, (31), 25 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-28 03:22:03,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 334 transitions. [2024-11-28 03:22:03,023 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 334 transitions. Word has length 65 [2024-11-28 03:22:03,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:03,023 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 334 transitions. [2024-11-28 03:22:03,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.0) internal successors, (40), 11 states have internal predecessors, (40), 5 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-28 03:22:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 334 transitions. [2024-11-28 03:22:03,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-28 03:22:03,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:03,025 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:03,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 03:22:03,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:03,226 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:03,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:03,226 INFO L85 PathProgramCache]: Analyzing trace with hash -574774844, now seen corresponding path program 1 times [2024-11-28 03:22:03,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:03,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860186228] [2024-11-28 03:22:03,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:03,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:03,493 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:22:03,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:03,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860186228] [2024-11-28 03:22:03,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860186228] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:03,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349499442] [2024-11-28 03:22:03,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:03,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:03,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:03,496 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:03,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:22:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:03,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 03:22:03,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 30 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:03,791 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:04,092 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 03:22:04,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349499442] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:04,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:04,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 30 [2024-11-28 03:22:04,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263704206] [2024-11-28 03:22:04,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:04,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-28 03:22:04,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:04,095 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-28 03:22:04,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=740, Unknown=0, NotChecked=0, Total=930 [2024-11-28 03:22:04,095 INFO L87 Difference]: Start difference. First operand 293 states and 334 transitions. Second operand has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-28 03:22:05,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:05,795 INFO L93 Difference]: Finished difference Result 332 states and 381 transitions. [2024-11-28 03:22:05,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-28 03:22:05,795 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) Word has length 66 [2024-11-28 03:22:05,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:05,799 INFO L225 Difference]: With dead ends: 332 [2024-11-28 03:22:05,801 INFO L226 Difference]: Without dead ends: 331 [2024-11-28 03:22:05,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=715, Invalid=2945, Unknown=0, NotChecked=0, Total=3660 [2024-11-28 03:22:05,804 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 184 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:05,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 351 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:22:05,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-28 03:22:05,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 306. [2024-11-28 03:22:05,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 245 states have (on average 1.1591836734693877) internal successors, (284), 248 states have internal predecessors, (284), 32 states have call successors, (32), 26 states have call predecessors, (32), 26 states have return successors, (32), 31 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 03:22:05,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 348 transitions. [2024-11-28 03:22:05,850 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 348 transitions. Word has length 66 [2024-11-28 03:22:05,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:05,851 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 348 transitions. [2024-11-28 03:22:05,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.033333333333333) internal successors, (91), 31 states have internal predecessors, (91), 14 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 14 states have call predecessors, (20), 14 states have call successors, (20) [2024-11-28 03:22:05,851 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 348 transitions. [2024-11-28 03:22:05,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 03:22:05,855 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:05,855 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:05,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:22:06,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:06,059 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:06,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:06,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1385122664, now seen corresponding path program 1 times [2024-11-28 03:22:06,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:06,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164577836] [2024-11-28 03:22:06,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:06,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:06,400 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 03:22:06,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:06,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164577836] [2024-11-28 03:22:06,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164577836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:06,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736055193] [2024-11-28 03:22:06,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:06,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:06,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:06,403 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:06,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:22:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:06,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:22:06,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:06,650 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:06,650 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:06,997 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 03:22:06,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736055193] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:06,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:06,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 14] total 29 [2024-11-28 03:22:06,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251217810] [2024-11-28 03:22:06,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:06,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 03:22:06,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:07,000 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 03:22:07,000 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=617, Unknown=0, NotChecked=0, Total=812 [2024-11-28 03:22:07,000 INFO L87 Difference]: Start difference. First operand 306 states and 348 transitions. Second operand has 29 states, 29 states have (on average 3.3793103448275863) internal successors, (98), 29 states have internal predecessors, (98), 13 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 13 states have call predecessors, (27), 13 states have call successors, (27) [2024-11-28 03:22:07,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:07,906 INFO L93 Difference]: Finished difference Result 542 states and 628 transitions. [2024-11-28 03:22:07,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-28 03:22:07,907 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.3793103448275863) internal successors, (98), 29 states have internal predecessors, (98), 13 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 13 states have call predecessors, (27), 13 states have call successors, (27) Word has length 80 [2024-11-28 03:22:07,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:07,910 INFO L225 Difference]: With dead ends: 542 [2024-11-28 03:22:07,910 INFO L226 Difference]: Without dead ends: 383 [2024-11-28 03:22:07,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=643, Invalid=1709, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 03:22:07,913 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 173 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:07,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 375 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:22:07,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-28 03:22:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 360. [2024-11-28 03:22:07,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 289 states have (on average 1.1522491349480968) internal successors, (333), 292 states have internal predecessors, (333), 37 states have call successors, (37), 31 states have call predecessors, (37), 31 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-28 03:22:07,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 407 transitions. [2024-11-28 03:22:07,977 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 407 transitions. Word has length 80 [2024-11-28 03:22:07,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:07,977 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 407 transitions. [2024-11-28 03:22:07,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.3793103448275863) internal successors, (98), 29 states have internal predecessors, (98), 13 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 13 states have call predecessors, (27), 13 states have call successors, (27) [2024-11-28 03:22:07,978 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 407 transitions. [2024-11-28 03:22:07,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 03:22:07,981 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:07,981 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:22:07,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 03:22:08,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:08,182 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:08,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:08,183 INFO L85 PathProgramCache]: Analyzing trace with hash -131064306, now seen corresponding path program 1 times [2024-11-28 03:22:08,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:08,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877571874] [2024-11-28 03:22:08,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:08,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:08,605 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 03:22:08,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:08,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877571874] [2024-11-28 03:22:08,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877571874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:08,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487875396] [2024-11-28 03:22:08,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:08,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:08,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:08,608 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:08,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:22:08,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:08,678 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:22:08,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:09,044 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:09,045 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:09,531 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 03:22:09,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487875396] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:09,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:09,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 42 [2024-11-28 03:22:09,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275560028] [2024-11-28 03:22:09,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:09,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-28 03:22:09,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:09,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-28 03:22:09,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1444, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 03:22:09,535 INFO L87 Difference]: Start difference. First operand 360 states and 407 transitions. Second operand has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-28 03:22:12,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:12,409 INFO L93 Difference]: Finished difference Result 776 states and 906 transitions. [2024-11-28 03:22:12,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2024-11-28 03:22:12,410 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) Word has length 86 [2024-11-28 03:22:12,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:12,415 INFO L225 Difference]: With dead ends: 776 [2024-11-28 03:22:12,415 INFO L226 Difference]: Without dead ends: 617 [2024-11-28 03:22:12,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2133 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=1770, Invalid=7350, Unknown=0, NotChecked=0, Total=9120 [2024-11-28 03:22:12,420 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 546 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:12,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 369 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:22:12,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 617 states. [2024-11-28 03:22:12,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 617 to 556. [2024-11-28 03:22:12,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 445 states have (on average 1.1752808988764045) internal successors, (523), 448 states have internal predecessors, (523), 57 states have call successors, (57), 51 states have call predecessors, (57), 51 states have return successors, (57), 56 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-28 03:22:12,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 637 transitions. [2024-11-28 03:22:12,513 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 637 transitions. Word has length 86 [2024-11-28 03:22:12,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:12,514 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 637 transitions. [2024-11-28 03:22:12,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-28 03:22:12,514 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 637 transitions. [2024-11-28 03:22:12,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 03:22:12,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:12,516 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:12,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:22:12,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:12,720 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:12,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:12,721 INFO L85 PathProgramCache]: Analyzing trace with hash -2020837704, now seen corresponding path program 1 times [2024-11-28 03:22:12,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:12,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829392755] [2024-11-28 03:22:12,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:12,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 03:22:13,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:13,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829392755] [2024-11-28 03:22:13,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829392755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:13,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410637491] [2024-11-28 03:22:13,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:13,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:13,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:13,087 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:13,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:22:13,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:13,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:22:13,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:13,500 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 3 proven. 96 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:13,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 3 proven. 36 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 03:22:13,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410637491] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:13,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:13,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 42 [2024-11-28 03:22:13,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297957036] [2024-11-28 03:22:13,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:13,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-28 03:22:13,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:13,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-28 03:22:13,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=368, Invalid=1438, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 03:22:13,925 INFO L87 Difference]: Start difference. First operand 556 states and 637 transitions. Second operand has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-28 03:22:16,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:16,318 INFO L93 Difference]: Finished difference Result 716 states and 822 transitions. [2024-11-28 03:22:16,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-28 03:22:16,318 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) Word has length 86 [2024-11-28 03:22:16,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:16,322 INFO L225 Difference]: With dead ends: 716 [2024-11-28 03:22:16,322 INFO L226 Difference]: Without dead ends: 713 [2024-11-28 03:22:16,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1845 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1656, Invalid=6716, Unknown=0, NotChecked=0, Total=8372 [2024-11-28 03:22:16,326 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 347 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:16,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 387 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:22:16,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-28 03:22:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 608. [2024-11-28 03:22:16,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 485 states have (on average 1.1814432989690722) internal successors, (573), 488 states have internal predecessors, (573), 63 states have call successors, (63), 57 states have call predecessors, (63), 57 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-28 03:22:16,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 699 transitions. [2024-11-28 03:22:16,387 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 699 transitions. Word has length 86 [2024-11-28 03:22:16,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:16,387 INFO L471 AbstractCegarLoop]: Abstraction has 608 states and 699 transitions. [2024-11-28 03:22:16,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 3.0238095238095237) internal successors, (127), 43 states have internal predecessors, (127), 20 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 20 states have call predecessors, (26), 20 states have call successors, (26) [2024-11-28 03:22:16,387 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 699 transitions. [2024-11-28 03:22:16,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 03:22:16,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:16,389 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-28 03:22:16,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-28 03:22:16,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 03:22:16,594 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:16,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:16,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1183142070, now seen corresponding path program 1 times [2024-11-28 03:22:16,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:16,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476170046] [2024-11-28 03:22:16,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:16,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:16,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:17,031 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 03:22:17,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:17,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476170046] [2024-11-28 03:22:17,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476170046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:17,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874778959] [2024-11-28 03:22:17,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:17,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:17,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:17,034 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:17,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:22:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:17,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:22:17,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:17,314 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 142 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:17,315 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:17,709 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-28 03:22:17,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874778959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:17,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:17,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17, 18] total 37 [2024-11-28 03:22:17,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492288738] [2024-11-28 03:22:17,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:17,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 03:22:17,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:17,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 03:22:17,712 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:22:17,712 INFO L87 Difference]: Start difference. First operand 608 states and 699 transitions. Second operand has 37 states, 37 states have (on average 3.3513513513513513) internal successors, (124), 37 states have internal predecessors, (124), 17 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 17 states have call predecessors, (33), 17 states have call successors, (33) [2024-11-28 03:22:19,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:19,155 INFO L93 Difference]: Finished difference Result 1131 states and 1314 transitions. [2024-11-28 03:22:19,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-28 03:22:19,155 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.3513513513513513) internal successors, (124), 37 states have internal predecessors, (124), 17 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 17 states have call predecessors, (33), 17 states have call successors, (33) Word has length 100 [2024-11-28 03:22:19,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:19,160 INFO L225 Difference]: With dead ends: 1131 [2024-11-28 03:22:19,161 INFO L226 Difference]: Without dead ends: 842 [2024-11-28 03:22:19,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1387 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1135, Invalid=4415, Unknown=0, NotChecked=0, Total=5550 [2024-11-28 03:22:19,164 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 216 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:19,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 588 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:22:19,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-28 03:22:19,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 758. [2024-11-28 03:22:19,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 758 states, 605 states have (on average 1.1586776859504133) internal successors, (701), 608 states have internal predecessors, (701), 78 states have call successors, (78), 72 states have call predecessors, (78), 72 states have return successors, (78), 77 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:22:19,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 758 states to 758 states and 857 transitions. [2024-11-28 03:22:19,236 INFO L78 Accepts]: Start accepts. Automaton has 758 states and 857 transitions. Word has length 100 [2024-11-28 03:22:19,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:19,236 INFO L471 AbstractCegarLoop]: Abstraction has 758 states and 857 transitions. [2024-11-28 03:22:19,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.3513513513513513) internal successors, (124), 37 states have internal predecessors, (124), 17 states have call successors, (33), 9 states have call predecessors, (33), 9 states have return successors, (33), 17 states have call predecessors, (33), 17 states have call successors, (33) [2024-11-28 03:22:19,237 INFO L276 IsEmpty]: Start isEmpty. Operand 758 states and 857 transitions. [2024-11-28 03:22:19,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 03:22:19,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:19,244 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:19,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 03:22:19,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 03:22:19,445 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:19,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:19,445 INFO L85 PathProgramCache]: Analyzing trace with hash 931016932, now seen corresponding path program 1 times [2024-11-28 03:22:19,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:19,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629136593] [2024-11-28 03:22:19,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:19,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:22:19,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:19,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629136593] [2024-11-28 03:22:19,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629136593] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:19,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845935514] [2024-11-28 03:22:19,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:19,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:19,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:19,937 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:19,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:22:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:20,011 INFO L256 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:22:20,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:20,425 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 3 proven. 166 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:20,425 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 3 proven. 54 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:22:20,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845935514] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:20,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:20,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 18, 18] total 54 [2024-11-28 03:22:20,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017047397] [2024-11-28 03:22:20,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:20,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-28 03:22:20,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:20,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-28 03:22:20,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=564, Invalid=2406, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 03:22:20,979 INFO L87 Difference]: Start difference. First operand 758 states and 857 transitions. Second operand has 55 states, 54 states have (on average 3.0185185185185186) internal successors, (163), 55 states have internal predecessors, (163), 26 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 26 states have call predecessors, (32), 26 states have call successors, (32) [2024-11-28 03:22:23,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:23,917 INFO L93 Difference]: Finished difference Result 927 states and 1052 transitions. [2024-11-28 03:22:23,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-11-28 03:22:23,918 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 3.0185185185185186) internal successors, (163), 55 states have internal predecessors, (163), 26 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 26 states have call predecessors, (32), 26 states have call successors, (32) Word has length 106 [2024-11-28 03:22:23,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:23,923 INFO L225 Difference]: With dead ends: 927 [2024-11-28 03:22:23,923 INFO L226 Difference]: Without dead ends: 925 [2024-11-28 03:22:23,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3588 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2754, Invalid=12008, Unknown=0, NotChecked=0, Total=14762 [2024-11-28 03:22:23,928 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 515 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:23,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 416 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:22:23,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-28 03:22:24,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 624. [2024-11-28 03:22:24,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 497 states have (on average 1.1609657947686116) internal successors, (577), 501 states have internal predecessors, (577), 65 states have call successors, (65), 59 states have call predecessors, (65), 59 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:22:24,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 707 transitions. [2024-11-28 03:22:24,010 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 707 transitions. Word has length 106 [2024-11-28 03:22:24,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:24,010 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 707 transitions. [2024-11-28 03:22:24,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 3.0185185185185186) internal successors, (163), 55 states have internal predecessors, (163), 26 states have call successors, (32), 9 states have call predecessors, (32), 9 states have return successors, (32), 26 states have call predecessors, (32), 26 states have call successors, (32) [2024-11-28 03:22:24,010 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 707 transitions. [2024-11-28 03:22:24,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-28 03:22:24,013 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:24,013 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 1, 1, 1] [2024-11-28 03:22:24,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 03:22:24,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 03:22:24,215 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:24,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:24,216 INFO L85 PathProgramCache]: Analyzing trace with hash -554408752, now seen corresponding path program 2 times [2024-11-28 03:22:24,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:24,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418619535] [2024-11-28 03:22:24,216 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:24,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:24,252 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:24,252 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:24,437 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2024-11-28 03:22:24,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:24,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418619535] [2024-11-28 03:22:24,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418619535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:24,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:24,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:22:24,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557475705] [2024-11-28 03:22:24,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:24,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:22:24,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:24,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:22:24,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:22:24,438 INFO L87 Difference]: Start difference. First operand 624 states and 707 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:22:24,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:24,582 INFO L93 Difference]: Finished difference Result 638 states and 721 transitions. [2024-11-28 03:22:24,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:22:24,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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 146 [2024-11-28 03:22:24,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:24,590 INFO L225 Difference]: With dead ends: 638 [2024-11-28 03:22:24,590 INFO L226 Difference]: Without dead ends: 637 [2024-11-28 03:22:24,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:22:24,591 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 24 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:24,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 133 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:22:24,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-28 03:22:24,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 624. [2024-11-28 03:22:24,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 497 states have (on average 1.158953722334004) internal successors, (576), 501 states have internal predecessors, (576), 65 states have call successors, (65), 59 states have call predecessors, (65), 59 states have return successors, (65), 63 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 03:22:24,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 706 transitions. [2024-11-28 03:22:24,670 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 706 transitions. Word has length 146 [2024-11-28 03:22:24,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:24,670 INFO L471 AbstractCegarLoop]: Abstraction has 624 states and 706 transitions. [2024-11-28 03:22:24,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:22:24,671 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 706 transitions. [2024-11-28 03:22:24,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-28 03:22:24,675 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:24,675 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:24,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:22:24,676 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:24,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:24,676 INFO L85 PathProgramCache]: Analyzing trace with hash -775950785, now seen corresponding path program 2 times [2024-11-28 03:22:24,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:24,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082762695] [2024-11-28 03:22:24,676 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:24,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:24,726 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:24,727 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:25,606 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 3 proven. 178 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 03:22:25,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:25,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082762695] [2024-11-28 03:22:25,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082762695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:25,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219042812] [2024-11-28 03:22:25,606 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:25,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:25,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:25,609 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:25,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:22:25,713 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:25,713 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:25,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-28 03:22:25,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:26,002 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 3 proven. 442 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:26,002 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:26,740 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 3 proven. 178 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-28 03:22:26,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219042812] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:26,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:26,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27, 28] total 51 [2024-11-28 03:22:26,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838408083] [2024-11-28 03:22:26,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:26,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-28 03:22:26,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:26,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-28 03:22:26,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=2080, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 03:22:26,743 INFO L87 Difference]: Start difference. First operand 624 states and 706 transitions. Second operand has 51 states, 51 states have (on average 3.7058823529411766) internal successors, (189), 51 states have internal predecessors, (189), 21 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 21 states have call predecessors, (48), 21 states have call successors, (48) [2024-11-28 03:22:29,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:29,581 INFO L93 Difference]: Finished difference Result 1398 states and 1614 transitions. [2024-11-28 03:22:29,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-28 03:22:29,582 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 3.7058823529411766) internal successors, (189), 51 states have internal predecessors, (189), 21 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 21 states have call predecessors, (48), 21 states have call successors, (48) Word has length 150 [2024-11-28 03:22:29,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:29,588 INFO L225 Difference]: With dead ends: 1398 [2024-11-28 03:22:29,588 INFO L226 Difference]: Without dead ends: 1133 [2024-11-28 03:22:29,590 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 272 SyntacticMatches, 6 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3121 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2287, Invalid=9055, Unknown=0, NotChecked=0, Total=11342 [2024-11-28 03:22:29,591 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 327 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:29,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 621 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:22:29,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2024-11-28 03:22:29,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 958. [2024-11-28 03:22:29,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 765 states have (on average 1.1464052287581699) internal successors, (877), 769 states have internal predecessors, (877), 98 states have call successors, (98), 92 states have call predecessors, (98), 92 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-28 03:22:29,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1073 transitions. [2024-11-28 03:22:29,707 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1073 transitions. Word has length 150 [2024-11-28 03:22:29,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:29,708 INFO L471 AbstractCegarLoop]: Abstraction has 958 states and 1073 transitions. [2024-11-28 03:22:29,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.7058823529411766) internal successors, (189), 51 states have internal predecessors, (189), 21 states have call successors, (48), 14 states have call predecessors, (48), 14 states have return successors, (48), 21 states have call predecessors, (48), 21 states have call successors, (48) [2024-11-28 03:22:29,709 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1073 transitions. [2024-11-28 03:22:29,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:22:29,712 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:29,712 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 8, 8, 8, 7, 7, 7, 6, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:29,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 03:22:29,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:29,916 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:29,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:29,916 INFO L85 PathProgramCache]: Analyzing trace with hash 226530428, now seen corresponding path program 1 times [2024-11-28 03:22:29,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:29,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002510903] [2024-11-28 03:22:29,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:29,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 26 proven. 166 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-28 03:22:30,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:30,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002510903] [2024-11-28 03:22:30,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002510903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:30,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251072028] [2024-11-28 03:22:30,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:30,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:30,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:30,731 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:30,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:22:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:30,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-28 03:22:30,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 70 proven. 386 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 03:22:31,123 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:31,874 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 26 proven. 166 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-28 03:22:31,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251072028] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:31,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:31,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 26] total 48 [2024-11-28 03:22:31,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417686343] [2024-11-28 03:22:31,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:31,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-28 03:22:31,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:31,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-28 03:22:31,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=448, Invalid=1808, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 03:22:31,878 INFO L87 Difference]: Start difference. First operand 958 states and 1073 transitions. Second operand has 48 states, 48 states have (on average 3.7708333333333335) internal successors, (181), 48 states have internal predecessors, (181), 22 states have call successors, (46), 14 states have call predecessors, (46), 14 states have return successors, (46), 22 states have call predecessors, (46), 22 states have call successors, (46) [2024-11-28 03:22:33,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:33,793 INFO L93 Difference]: Finished difference Result 1673 states and 1898 transitions. [2024-11-28 03:22:33,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2024-11-28 03:22:33,793 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.7708333333333335) internal successors, (181), 48 states have internal predecessors, (181), 22 states have call successors, (46), 14 states have call predecessors, (46), 14 states have return successors, (46), 22 states have call predecessors, (46), 22 states have call successors, (46) Word has length 154 [2024-11-28 03:22:33,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:33,800 INFO L225 Difference]: With dead ends: 1673 [2024-11-28 03:22:33,800 INFO L226 Difference]: Without dead ends: 1408 [2024-11-28 03:22:33,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 282 SyntacticMatches, 5 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2644 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1935, Invalid=7571, Unknown=0, NotChecked=0, Total=9506 [2024-11-28 03:22:33,804 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 330 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:33,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 473 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:22:33,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2024-11-28 03:22:33,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1316. [2024-11-28 03:22:33,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1316 states, 1053 states have (on average 1.1358024691358024) internal successors, (1196), 1057 states have internal predecessors, (1196), 133 states have call successors, (133), 127 states have call predecessors, (133), 127 states have return successors, (133), 131 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-28 03:22:33,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1316 states to 1316 states and 1462 transitions. [2024-11-28 03:22:33,944 INFO L78 Accepts]: Start accepts. Automaton has 1316 states and 1462 transitions. Word has length 154 [2024-11-28 03:22:33,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:33,947 INFO L471 AbstractCegarLoop]: Abstraction has 1316 states and 1462 transitions. [2024-11-28 03:22:33,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.7708333333333335) internal successors, (181), 48 states have internal predecessors, (181), 22 states have call successors, (46), 14 states have call predecessors, (46), 14 states have return successors, (46), 22 states have call predecessors, (46), 22 states have call successors, (46) [2024-11-28 03:22:33,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1316 states and 1462 transitions. [2024-11-28 03:22:33,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 03:22:33,952 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:33,952 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 10, 10, 10, 10, 9, 4, 4, 4, 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] [2024-11-28 03:22:33,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 03:22:34,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:34,153 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:34,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:34,153 INFO L85 PathProgramCache]: Analyzing trace with hash -461645517, now seen corresponding path program 1 times [2024-11-28 03:22:34,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:34,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904990276] [2024-11-28 03:22:34,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:34,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:34,269 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2024-11-28 03:22:34,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:34,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904990276] [2024-11-28 03:22:34,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904990276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:34,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:34,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:22:34,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475417646] [2024-11-28 03:22:34,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:34,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:22:34,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:34,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:22:34,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:22:34,272 INFO L87 Difference]: Start difference. First operand 1316 states and 1462 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 03:22:34,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:34,442 INFO L93 Difference]: Finished difference Result 1787 states and 2015 transitions. [2024-11-28 03:22:34,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:22:34,443 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 156 [2024-11-28 03:22:34,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:34,451 INFO L225 Difference]: With dead ends: 1787 [2024-11-28 03:22:34,452 INFO L226 Difference]: Without dead ends: 1366 [2024-11-28 03:22:34,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:22:34,459 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 14 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:34,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 150 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:22:34,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2024-11-28 03:22:34,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1310. [2024-11-28 03:22:34,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 1050 states have (on average 1.1276190476190475) internal successors, (1184), 1054 states have internal predecessors, (1184), 133 states have call successors, (133), 124 states have call predecessors, (133), 124 states have return successors, (133), 131 states have call predecessors, (133), 133 states have call successors, (133) [2024-11-28 03:22:34,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1450 transitions. [2024-11-28 03:22:34,601 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1450 transitions. Word has length 156 [2024-11-28 03:22:34,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:34,602 INFO L471 AbstractCegarLoop]: Abstraction has 1310 states and 1450 transitions. [2024-11-28 03:22:34,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 4 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 03:22:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1450 transitions. [2024-11-28 03:22:34,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 03:22:34,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:34,606 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:34,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:22:34,606 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:34,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:34,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1758684345, now seen corresponding path program 2 times [2024-11-28 03:22:34,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:34,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884806820] [2024-11-28 03:22:34,607 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:34,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:34,633 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:34,633 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:34,765 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2024-11-28 03:22:34,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:34,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884806820] [2024-11-28 03:22:34,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884806820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:34,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:34,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:22:34,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862609748] [2024-11-28 03:22:34,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:34,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:22:34,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:34,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:22:34,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:22:34,768 INFO L87 Difference]: Start difference. First operand 1310 states and 1450 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:22:34,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:34,974 INFO L93 Difference]: Finished difference Result 1325 states and 1466 transitions. [2024-11-28 03:22:34,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:22:34,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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 156 [2024-11-28 03:22:34,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:34,982 INFO L225 Difference]: With dead ends: 1325 [2024-11-28 03:22:34,982 INFO L226 Difference]: Without dead ends: 1321 [2024-11-28 03:22:34,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:22:34,987 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 23 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:34,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 128 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:22:34,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1321 states. [2024-11-28 03:22:35,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1321 to 1163. [2024-11-28 03:22:35,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 934 states have (on average 1.126338329764454) internal successors, (1052), 938 states have internal predecessors, (1052), 117 states have call successors, (117), 109 states have call predecessors, (117), 109 states have return successors, (117), 115 states have call predecessors, (117), 117 states have call successors, (117) [2024-11-28 03:22:35,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1286 transitions. [2024-11-28 03:22:35,144 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1286 transitions. Word has length 156 [2024-11-28 03:22:35,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:35,145 INFO L471 AbstractCegarLoop]: Abstraction has 1163 states and 1286 transitions. [2024-11-28 03:22:35,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:22:35,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1286 transitions. [2024-11-28 03:22:35,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:22:35,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:35,149 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:35,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:22:35,149 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:35,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:35,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1789096096, now seen corresponding path program 1 times [2024-11-28 03:22:35,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:35,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801561512] [2024-11-28 03:22:35,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:35,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:35,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 6 proven. 180 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-28 03:22:36,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:36,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801561512] [2024-11-28 03:22:36,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801561512] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:36,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726611084] [2024-11-28 03:22:36,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:36,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:36,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:36,069 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:36,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 03:22:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:36,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 03:22:36,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:36,453 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 6 proven. 492 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:36,453 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:37,328 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 6 proven. 180 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2024-11-28 03:22:37,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726611084] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:37,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:37,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29, 30] total 51 [2024-11-28 03:22:37,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807139869] [2024-11-28 03:22:37,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:37,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-28 03:22:37,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:37,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-28 03:22:37,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=2093, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 03:22:37,332 INFO L87 Difference]: Start difference. First operand 1163 states and 1286 transitions. Second operand has 51 states, 51 states have (on average 3.803921568627451) internal successors, (194), 51 states have internal predecessors, (194), 21 states have call successors, (49), 15 states have call predecessors, (49), 15 states have return successors, (49), 21 states have call predecessors, (49), 21 states have call successors, (49) [2024-11-28 03:22:39,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:39,901 INFO L93 Difference]: Finished difference Result 2312 states and 2595 transitions. [2024-11-28 03:22:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-11-28 03:22:39,902 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 3.803921568627451) internal successors, (194), 51 states have internal predecessors, (194), 21 states have call successors, (49), 15 states have call predecessors, (49), 15 states have return successors, (49), 21 states have call predecessors, (49), 21 states have call successors, (49) Word has length 160 [2024-11-28 03:22:39,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:39,912 INFO L225 Difference]: With dead ends: 2312 [2024-11-28 03:22:39,912 INFO L226 Difference]: Without dead ends: 2049 [2024-11-28 03:22:39,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 290 SyntacticMatches, 10 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3337 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2077, Invalid=9053, Unknown=0, NotChecked=0, Total=11130 [2024-11-28 03:22:39,915 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 335 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:39,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 531 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:22:39,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2024-11-28 03:22:40,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 1238. [2024-11-28 03:22:40,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 995 states have (on average 1.1256281407035176) internal successors, (1120), 998 states have internal predecessors, (1120), 124 states have call successors, (124), 116 states have call predecessors, (124), 116 states have return successors, (124), 123 states have call predecessors, (124), 124 states have call successors, (124) [2024-11-28 03:22:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1368 transitions. [2024-11-28 03:22:40,067 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1368 transitions. Word has length 160 [2024-11-28 03:22:40,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:40,067 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1368 transitions. [2024-11-28 03:22:40,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.803921568627451) internal successors, (194), 51 states have internal predecessors, (194), 21 states have call successors, (49), 15 states have call predecessors, (49), 15 states have return successors, (49), 21 states have call predecessors, (49), 21 states have call successors, (49) [2024-11-28 03:22:40,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1368 transitions. [2024-11-28 03:22:40,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-28 03:22:40,072 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:40,072 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 10, 10, 10, 10, 10, 10, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:40,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 03:22:40,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:40,273 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:40,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:40,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1666451030, now seen corresponding path program 1 times [2024-11-28 03:22:40,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:40,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013982996] [2024-11-28 03:22:40,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:40,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-28 03:22:41,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:41,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013982996] [2024-11-28 03:22:41,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013982996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:41,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440065485] [2024-11-28 03:22:41,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:41,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:41,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:41,353 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:41,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 03:22:41,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:41,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-28 03:22:41,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:42,625 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 3 proven. 649 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:42,625 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:44,111 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 3 proven. 285 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-11-28 03:22:44,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440065485] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:44,112 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:44,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 30, 30] total 90 [2024-11-28 03:22:44,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555117475] [2024-11-28 03:22:44,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:44,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2024-11-28 03:22:44,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:44,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2024-11-28 03:22:44,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1638, Invalid=6552, Unknown=0, NotChecked=0, Total=8190 [2024-11-28 03:22:44,117 INFO L87 Difference]: Start difference. First operand 1238 states and 1368 transitions. Second operand has 91 states, 90 states have (on average 3.011111111111111) internal successors, (271), 91 states have internal predecessors, (271), 44 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 44 states have call predecessors, (50), 44 states have call successors, (50) [2024-11-28 03:22:50,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:50,876 INFO L93 Difference]: Finished difference Result 2453 states and 2798 transitions. [2024-11-28 03:22:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2024-11-28 03:22:50,877 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 90 states have (on average 3.011111111111111) internal successors, (271), 91 states have internal predecessors, (271), 44 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 44 states have call predecessors, (50), 44 states have call successors, (50) Word has length 166 [2024-11-28 03:22:50,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:50,887 INFO L225 Difference]: With dead ends: 2453 [2024-11-28 03:22:50,887 INFO L226 Difference]: Without dead ends: 2190 [2024-11-28 03:22:50,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11291 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=8721, Invalid=35169, Unknown=0, NotChecked=0, Total=43890 [2024-11-28 03:22:50,895 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 851 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:50,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 545 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 03:22:50,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2024-11-28 03:22:51,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 1434. [2024-11-28 03:22:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1434 states, 1151 states have (on average 1.1364031277150304) internal successors, (1308), 1154 states have internal predecessors, (1308), 145 states have call successors, (145), 135 states have call predecessors, (145), 135 states have return successors, (145), 144 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-28 03:22:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1434 states to 1434 states and 1598 transitions. [2024-11-28 03:22:51,100 INFO L78 Accepts]: Start accepts. Automaton has 1434 states and 1598 transitions. Word has length 166 [2024-11-28 03:22:51,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:51,101 INFO L471 AbstractCegarLoop]: Abstraction has 1434 states and 1598 transitions. [2024-11-28 03:22:51,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 90 states have (on average 3.011111111111111) internal successors, (271), 91 states have internal predecessors, (271), 44 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (50), 44 states have call predecessors, (50), 44 states have call successors, (50) [2024-11-28 03:22:51,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1434 states and 1598 transitions. [2024-11-28 03:22:51,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 03:22:51,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:51,108 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:51,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 03:22:51,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 03:22:51,312 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:51,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:51,312 INFO L85 PathProgramCache]: Analyzing trace with hash -545818602, now seen corresponding path program 2 times [2024-11-28 03:22:51,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:51,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532471720] [2024-11-28 03:22:51,313 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:51,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:51,344 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:51,344 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:52,016 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 90 proven. 104 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-28 03:22:52,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:52,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532471720] [2024-11-28 03:22:52,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532471720] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:52,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000109360] [2024-11-28 03:22:52,016 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:52,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:52,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:52,018 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:52,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 03:22:52,119 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:52,119 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:52,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 03:22:52,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:52,334 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 250 proven. 284 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-28 03:22:52,334 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:52,992 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 90 proven. 104 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2024-11-28 03:22:52,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000109360] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:52,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:52,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23, 24] total 46 [2024-11-28 03:22:52,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196758415] [2024-11-28 03:22:52,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:52,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-28 03:22:52,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:52,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-28 03:22:52,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=1667, Unknown=0, NotChecked=0, Total=2070 [2024-11-28 03:22:52,995 INFO L87 Difference]: Start difference. First operand 1434 states and 1598 transitions. Second operand has 46 states, 46 states have (on average 3.6956521739130435) internal successors, (170), 46 states have internal predecessors, (170), 22 states have call successors, (44), 13 states have call predecessors, (44), 13 states have return successors, (44), 22 states have call predecessors, (44), 22 states have call successors, (44) [2024-11-28 03:22:54,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:54,964 INFO L93 Difference]: Finished difference Result 2369 states and 2666 transitions. [2024-11-28 03:22:54,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-28 03:22:54,969 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 3.6956521739130435) internal successors, (170), 46 states have internal predecessors, (170), 22 states have call successors, (44), 13 states have call predecessors, (44), 13 states have return successors, (44), 22 states have call predecessors, (44), 22 states have call successors, (44) Word has length 174 [2024-11-28 03:22:54,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:54,981 INFO L225 Difference]: With dead ends: 2369 [2024-11-28 03:22:54,982 INFO L226 Difference]: Without dead ends: 1956 [2024-11-28 03:22:54,984 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 324 SyntacticMatches, 3 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2447 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1677, Invalid=7253, Unknown=0, NotChecked=0, Total=8930 [2024-11-28 03:22:54,985 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 252 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:54,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 534 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:22:54,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2024-11-28 03:22:55,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1842. [2024-11-28 03:22:55,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1479 states have (on average 1.1271129141311698) internal successors, (1667), 1482 states have internal predecessors, (1667), 185 states have call successors, (185), 175 states have call predecessors, (185), 175 states have return successors, (185), 184 states have call predecessors, (185), 185 states have call successors, (185) [2024-11-28 03:22:55,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2037 transitions. [2024-11-28 03:22:55,199 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2037 transitions. Word has length 174 [2024-11-28 03:22:55,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:55,199 INFO L471 AbstractCegarLoop]: Abstraction has 1842 states and 2037 transitions. [2024-11-28 03:22:55,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.6956521739130435) internal successors, (170), 46 states have internal predecessors, (170), 22 states have call successors, (44), 13 states have call predecessors, (44), 13 states have return successors, (44), 22 states have call predecessors, (44), 22 states have call successors, (44) [2024-11-28 03:22:55,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2037 transitions. [2024-11-28 03:22:55,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-28 03:22:55,205 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:55,205 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 12, 12, 12, 11, 11, 11, 10, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:55,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 03:22:55,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 03:22:55,410 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:55,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:55,411 INFO L85 PathProgramCache]: Analyzing trace with hash -43124312, now seen corresponding path program 1 times [2024-11-28 03:22:55,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:55,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547516166] [2024-11-28 03:22:55,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:22:55,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:22:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 662 trivial. 0 not checked. [2024-11-28 03:22:55,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:55,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547516166] [2024-11-28 03:22:55,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547516166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:22:55,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:22:55,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:22:55,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946692203] [2024-11-28 03:22:55,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:22:55,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:22:55,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:55,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:22:55,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:22:55,548 INFO L87 Difference]: Start difference. First operand 1842 states and 2037 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 03:22:55,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:22:55,764 INFO L93 Difference]: Finished difference Result 2698 states and 3017 transitions. [2024-11-28 03:22:55,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:22:55,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 180 [2024-11-28 03:22:55,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:22:55,774 INFO L225 Difference]: With dead ends: 2698 [2024-11-28 03:22:55,774 INFO L226 Difference]: Without dead ends: 1831 [2024-11-28 03:22:55,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:22:55,777 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 17 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:22:55,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 115 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:22:55,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2024-11-28 03:22:55,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1825. [2024-11-28 03:22:55,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1466 states have (on average 1.1234652114597545) internal successors, (1647), 1470 states have internal predecessors, (1647), 185 states have call successors, (185), 171 states have call predecessors, (185), 171 states have return successors, (185), 183 states have call predecessors, (185), 185 states have call successors, (185) [2024-11-28 03:22:56,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2017 transitions. [2024-11-28 03:22:56,017 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2017 transitions. Word has length 180 [2024-11-28 03:22:56,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:22:56,018 INFO L471 AbstractCegarLoop]: Abstraction has 1825 states and 2017 transitions. [2024-11-28 03:22:56,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 03:22:56,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2017 transitions. [2024-11-28 03:22:56,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-28 03:22:56,023 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:22:56,024 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 9, 9, 9, 8, 8, 8, 7, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:22:56,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:22:56,024 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:22:56,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:22:56,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1608207842, now seen corresponding path program 2 times [2024-11-28 03:22:56,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:22:56,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847383695] [2024-11-28 03:22:56,025 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:56,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:22:56,062 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:56,062 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:57,129 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 6 proven. 266 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-28 03:22:57,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:22:57,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847383695] [2024-11-28 03:22:57,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847383695] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:22:57,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049296807] [2024-11-28 03:22:57,130 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:22:57,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:22:57,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:22:57,132 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:22:57,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 03:22:57,232 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:22:57,232 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:22:57,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 03:22:57,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:22:57,481 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 6 proven. 686 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 03:22:57,482 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:22:58,258 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 6 proven. 266 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-28 03:22:58,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049296807] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:22:58,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:22:58,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 33, 34] total 55 [2024-11-28 03:22:58,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562302884] [2024-11-28 03:22:58,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:22:58,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-28 03:22:58,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:22:58,260 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-28 03:22:58,260 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=516, Invalid=2454, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 03:22:58,261 INFO L87 Difference]: Start difference. First operand 1825 states and 2017 transitions. Second operand has 55 states, 55 states have (on average 4.0181818181818185) internal successors, (221), 55 states have internal predecessors, (221), 21 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 21 states have call predecessors, (56), 21 states have call successors, (56) [2024-11-28 03:23:01,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:01,097 INFO L93 Difference]: Finished difference Result 3641 states and 4054 transitions. [2024-11-28 03:23:01,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2024-11-28 03:23:01,098 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 55 states have (on average 4.0181818181818185) internal successors, (221), 55 states have internal predecessors, (221), 21 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 21 states have call predecessors, (56), 21 states have call successors, (56) Word has length 180 [2024-11-28 03:23:01,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:01,111 INFO L225 Difference]: With dead ends: 3641 [2024-11-28 03:23:01,111 INFO L226 Difference]: Without dead ends: 3205 [2024-11-28 03:23:01,115 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 326 SyntacticMatches, 14 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4332 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=2528, Invalid=11278, Unknown=0, NotChecked=0, Total=13806 [2024-11-28 03:23:01,116 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 349 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:01,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 644 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:23:01,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2024-11-28 03:23:01,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 1945. [2024-11-28 03:23:01,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1945 states, 1562 states have (on average 1.1216389244558258) internal successors, (1752), 1566 states have internal predecessors, (1752), 197 states have call successors, (197), 183 states have call predecessors, (197), 183 states have return successors, (197), 195 states have call predecessors, (197), 197 states have call successors, (197) [2024-11-28 03:23:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1945 states to 1945 states and 2146 transitions. [2024-11-28 03:23:01,381 INFO L78 Accepts]: Start accepts. Automaton has 1945 states and 2146 transitions. Word has length 180 [2024-11-28 03:23:01,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:01,384 INFO L471 AbstractCegarLoop]: Abstraction has 1945 states and 2146 transitions. [2024-11-28 03:23:01,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 4.0181818181818185) internal successors, (221), 55 states have internal predecessors, (221), 21 states have call successors, (56), 17 states have call predecessors, (56), 17 states have return successors, (56), 21 states have call predecessors, (56), 21 states have call successors, (56) [2024-11-28 03:23:01,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1945 states and 2146 transitions. [2024-11-28 03:23:01,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-28 03:23:01,391 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:01,391 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:01,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 03:23:01,592 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 03:23:01,592 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:23:01,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:01,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1445208638, now seen corresponding path program 3 times [2024-11-28 03:23:01,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:01,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707794499] [2024-11-28 03:23:01,593 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:23:01,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:01,617 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 03:23:01,617 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:01,717 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 651 trivial. 0 not checked. [2024-11-28 03:23:01,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:01,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707794499] [2024-11-28 03:23:01,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707794499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:23:01,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:23:01,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:23:01,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049642264] [2024-11-28 03:23:01,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:23:01,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:23:01,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:01,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:23:01,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:23:01,719 INFO L87 Difference]: Start difference. First operand 1945 states and 2146 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:23:02,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:02,041 INFO L93 Difference]: Finished difference Result 1950 states and 2150 transitions. [2024-11-28 03:23:02,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:23:02,042 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 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 180 [2024-11-28 03:23:02,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:02,049 INFO L225 Difference]: With dead ends: 1950 [2024-11-28 03:23:02,050 INFO L226 Difference]: Without dead ends: 1949 [2024-11-28 03:23:02,051 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:23:02,051 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 39 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:02,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 161 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:23:02,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2024-11-28 03:23:02,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1657. [2024-11-28 03:23:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1657 states, 1329 states have (on average 1.1151241534988714) internal successors, (1482), 1336 states have internal predecessors, (1482), 168 states have call successors, (168), 157 states have call predecessors, (168), 157 states have return successors, (168), 163 states have call predecessors, (168), 168 states have call successors, (168) [2024-11-28 03:23:02,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 1818 transitions. [2024-11-28 03:23:02,240 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 1818 transitions. Word has length 180 [2024-11-28 03:23:02,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:02,240 INFO L471 AbstractCegarLoop]: Abstraction has 1657 states and 1818 transitions. [2024-11-28 03:23:02,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 03:23:02,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 1818 transitions. [2024-11-28 03:23:02,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-28 03:23:02,246 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:23:02,246 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 13, 13, 13, 12, 12, 12, 11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:02,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:23:02,247 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-28 03:23:02,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:23:02,247 INFO L85 PathProgramCache]: Analyzing trace with hash -566784527, now seen corresponding path program 3 times [2024-11-28 03:23:02,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:23:02,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956209172] [2024-11-28 03:23:02,247 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:23:02,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:23:02,270 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 03:23:02,270 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:02,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 98 proven. 1 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2024-11-28 03:23:02,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:23:02,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956209172] [2024-11-28 03:23:02,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956209172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:23:02,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973301814] [2024-11-28 03:23:02,396 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 03:23:02,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:23:02,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:23:02,398 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:23:02,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 03:23:02,473 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 03:23:02,473 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:23:02,474 INFO L256 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:23:02,478 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:23:02,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 162 proven. 1 refuted. 0 times theorem prover too weak. 891 trivial. 0 not checked. [2024-11-28 03:23:02,528 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:23:02,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1054 backedges. 98 proven. 1 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2024-11-28 03:23:02,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973301814] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:23:02,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:23:02,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 17 [2024-11-28 03:23:02,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781860070] [2024-11-28 03:23:02,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:23:02,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:23:02,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:23:02,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:23:02,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:23:02,696 INFO L87 Difference]: Start difference. First operand 1657 states and 1818 transitions. Second operand has 18 states, 17 states have (on average 3.588235294117647) internal successors, (61), 18 states have internal predecessors, (61), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 03:23:03,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:23:03,416 INFO L93 Difference]: Finished difference Result 1765 states and 1944 transitions. [2024-11-28 03:23:03,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-28 03:23:03,417 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.588235294117647) internal successors, (61), 18 states have internal predecessors, (61), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 204 [2024-11-28 03:23:03,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:23:03,419 INFO L225 Difference]: With dead ends: 1765 [2024-11-28 03:23:03,419 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 03:23:03,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=184, Invalid=686, Unknown=0, NotChecked=0, Total=870 [2024-11-28 03:23:03,422 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 78 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:23:03,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 289 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:23:03,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 03:23:03,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 03:23:03,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:23:03,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 03:23:03,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 204 [2024-11-28 03:23:03,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:23:03,424 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 03:23:03,425 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.588235294117647) internal successors, (61), 18 states have internal predecessors, (61), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-28 03:23:03,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 03:23:03,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 03:23:03,428 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-28 03:23:03,428 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-28 03:23:03,428 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-28 03:23:03,429 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-28 03:23:03,429 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-28 03:23:03,429 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-28 03:23:03,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 03:23:03,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9d4db86-df0c-4665-9fa9-98a494f48685/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 03:23:03,632 INFO L422 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:23:03,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 03:27:05,473 WARN L286 SmtUtils]: Spent 3.99m on a formula simplification. DAG size of input: 1032 DAG size of output: 300 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)