./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/egcd2-ll.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_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/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_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/egcd2-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/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_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/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 ed6536c9cb0e4b2be9a327fc4a25c6bfba6e98b1dfb78e314dd25bca8cbdb087 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:53:53,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:53:54,120 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 02:53:54,129 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:53:54,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:53:54,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:53:54,164 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:53:54,165 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:53:54,165 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:53:54,165 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:53:54,165 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:53:54,166 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:53:54,166 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:53:54,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:53:54,167 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:53:54,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:53:54,167 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:53:54,168 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:53:54,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:53:54,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:53:54,168 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:53:54,168 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:53:54,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:53:54,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:53:54,169 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:53:54,169 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:53:54,169 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:53:54,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:53:54,169 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:53:54,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:53:54,169 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:53:54,170 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:54,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:54,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:54,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:54,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:53:54,172 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:54,172 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:54,172 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:54,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:54,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:53:54,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:53:54,173 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:53:54,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:53:54,173 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:53:54,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:53:54,173 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:53:54,173 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:53:54,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:53:54,174 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:53:54,174 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_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/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 -> ed6536c9cb0e4b2be9a327fc4a25c6bfba6e98b1dfb78e314dd25bca8cbdb087 [2024-11-28 02:53:54,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:53:54,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:53:54,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:53:54,578 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:53:54,578 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:53:54,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench/egcd2-ll.c [2024-11-28 02:53:57,949 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/data/a164dbc74/e8d355be7ed147a78732d0b2f229e54b/FLAG6cd5310c7 [2024-11-28 02:53:58,272 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:53:58,273 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/sv-benchmarks/c/nla-digbench/egcd2-ll.c [2024-11-28 02:53:58,286 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/data/a164dbc74/e8d355be7ed147a78732d0b2f229e54b/FLAG6cd5310c7 [2024-11-28 02:53:58,314 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/data/a164dbc74/e8d355be7ed147a78732d0b2f229e54b [2024-11-28 02:53:58,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:53:58,318 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:53:58,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:58,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:53:58,326 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:53:58,327 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56c699eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58, skipping insertion in model container [2024-11-28 02:53:58,329 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,348 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:53:58,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:58,632 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:53:58,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:58,693 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:53:58,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58 WrapperNode [2024-11-28 02:53:58,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:58,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:58,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:53:58,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:53:58,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,719 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,766 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 145 [2024-11-28 02:53:58,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:58,770 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:53:58,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:53:58,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:53:58,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,787 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,814 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:53:58,814 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,822 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,836 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,837 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,843 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:53:58,844 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:53:58,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:53:58,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:53:58,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (1/1) ... [2024-11-28 02:53:58,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:58,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:58,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:53:58,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:53:58,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:53:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:53:58,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:53:58,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:53:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:53:58,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:53:58,935 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:53:58,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:53:59,020 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:53:59,023 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:53:59,914 INFO L? ?]: Removed 196 outVars from TransFormulas that were not future-live. [2024-11-28 02:53:59,914 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:53:59,942 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:53:59,942 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:53:59,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:59 BoogieIcfgContainer [2024-11-28 02:53:59,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:53:59,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:53:59,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:53:59,953 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:53:59,953 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:53:58" (1/3) ... [2024-11-28 02:53:59,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129a772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:59, skipping insertion in model container [2024-11-28 02:53:59,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:58" (2/3) ... [2024-11-28 02:53:59,954 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@129a772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:59, skipping insertion in model container [2024-11-28 02:53:59,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:59" (3/3) ... [2024-11-28 02:53:59,957 INFO L128 eAbstractionObserver]: Analyzing ICFG egcd2-ll.c [2024-11-28 02:53:59,978 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:53:59,980 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG egcd2-ll.c that has 3 procedures, 158 locations, 1 initial locations, 2 loop locations, and 64 error locations. [2024-11-28 02:54:00,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:54:00,098 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;@6e7c02d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:54:00,098 INFO L334 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2024-11-28 02:54:00,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 81 states have (on average 1.8888888888888888) internal successors, (153), 146 states have internal predecessors, (153), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 02:54:00,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 02:54:00,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:00,116 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:00,116 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:00,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:00,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1605347096, now seen corresponding path program 1 times [2024-11-28 02:54:00,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:00,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886924506] [2024-11-28 02:54:00,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:00,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:54:00,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:00,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886924506] [2024-11-28 02:54:00,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886924506] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:00,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510205191] [2024-11-28 02:54:00,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:00,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:00,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:00,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:00,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:54:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:00,424 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:54:00,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:00,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:54:00,464 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:00,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510205191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:00,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:00,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:54:00,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169555473] [2024-11-28 02:54:00,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:00,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:54:00,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:00,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:54:00,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:54:00,503 INFO L87 Difference]: Start difference. First operand has 158 states, 81 states have (on average 1.8888888888888888) internal successors, (153), 146 states have internal predecessors, (153), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:54:00,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:00,558 INFO L93 Difference]: Finished difference Result 311 states and 351 transitions. [2024-11-28 02:54:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:54:00,560 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-28 02:54:00,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:00,572 INFO L225 Difference]: With dead ends: 311 [2024-11-28 02:54:00,572 INFO L226 Difference]: Without dead ends: 150 [2024-11-28 02:54:00,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 02:54:00,583 INFO L435 NwaCegarLoop]: 165 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, 165 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 02:54:00,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:54:00,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-28 02:54:00,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-28 02:54:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 76 states have (on average 1.8421052631578947) internal successors, (140), 139 states have internal predecessors, (140), 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 02:54:00,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 158 transitions. [2024-11-28 02:54:00,664 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 158 transitions. Word has length 14 [2024-11-28 02:54:00,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:00,666 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 158 transitions. [2024-11-28 02:54:00,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:54:00,667 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 158 transitions. [2024-11-28 02:54:00,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 02:54:00,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:00,670 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:00,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:00,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:00,874 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:00,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:00,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1996527064, now seen corresponding path program 1 times [2024-11-28 02:54:00,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:00,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7527987] [2024-11-28 02:54:00,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:00,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:00,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156181243] [2024-11-28 02:54:00,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:00,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:00,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:00,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:00,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:54:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:01,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:54:01,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:01,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:54:01,208 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:01,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:01,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7527987] [2024-11-28 02:54:01,209 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:01,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156181243] [2024-11-28 02:54:01,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156181243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:01,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:01,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:54:01,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668087236] [2024-11-28 02:54:01,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:01,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:54:01,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:01,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:54:01,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:54:01,214 INFO L87 Difference]: Start difference. First operand 150 states and 158 transitions. Second operand has 7 states, 4 states have (on average 1.75) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:54:01,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:01,737 INFO L93 Difference]: Finished difference Result 150 states and 158 transitions. [2024-11-28 02:54:01,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:54:01,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 1.75) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14 [2024-11-28 02:54:01,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:01,739 INFO L225 Difference]: With dead ends: 150 [2024-11-28 02:54:01,740 INFO L226 Difference]: Without dead ends: 148 [2024-11-28 02:54:01,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:54:01,741 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 282 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:01,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 214 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:54:01,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-28 02:54:01,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-28 02:54:01,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 76 states have (on average 1.8157894736842106) internal successors, (138), 137 states have internal predecessors, (138), 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 02:54:01,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 156 transitions. [2024-11-28 02:54:01,760 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 156 transitions. Word has length 14 [2024-11-28 02:54:01,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:01,765 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 156 transitions. [2024-11-28 02:54:01,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 1.75) internal successors, (7), 6 states have internal predecessors, (7), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:54:01,766 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 156 transitions. [2024-11-28 02:54:01,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 02:54:01,766 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:01,767 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:01,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:01,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:01,967 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:01,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:01,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1762796801, now seen corresponding path program 1 times [2024-11-28 02:54:01,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:01,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874731042] [2024-11-28 02:54:01,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:01,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:02,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1436486678] [2024-11-28 02:54:02,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:02,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:02,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:02,013 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:02,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:54:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:02,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:54:02,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:02,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:54:02,178 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:02,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:02,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874731042] [2024-11-28 02:54:02,179 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:02,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436486678] [2024-11-28 02:54:02,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436486678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:02,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:02,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:54:02,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706221083] [2024-11-28 02:54:02,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:02,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:54:02,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:02,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:54:02,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:54:02,182 INFO L87 Difference]: Start difference. First operand 148 states and 156 transitions. Second operand has 6 states, 4 states have (on average 2.75) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:54:02,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:02,672 INFO L93 Difference]: Finished difference Result 148 states and 156 transitions. [2024-11-28 02:54:02,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:54:02,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-28 02:54:02,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:02,674 INFO L225 Difference]: With dead ends: 148 [2024-11-28 02:54:02,674 INFO L226 Difference]: Without dead ends: 147 [2024-11-28 02:54:02,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:54:02,675 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 178 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:02,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 214 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:54:02,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-28 02:54:02,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-28 02:54:02,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 76 states have (on average 1.8026315789473684) internal successors, (137), 136 states have internal predecessors, (137), 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 02:54:02,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 155 transitions. [2024-11-28 02:54:02,690 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 155 transitions. Word has length 15 [2024-11-28 02:54:02,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:02,690 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 155 transitions. [2024-11-28 02:54:02,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.75) internal successors, (11), 6 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:54:02,690 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 155 transitions. [2024-11-28 02:54:02,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 02:54:02,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:02,691 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:02,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 02:54:02,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:02,892 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:02,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:02,893 INFO L85 PathProgramCache]: Analyzing trace with hash -582757279, now seen corresponding path program 1 times [2024-11-28 02:54:02,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:02,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657169052] [2024-11-28 02:54:02,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:02,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:03,333 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:54:03,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:03,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657169052] [2024-11-28 02:54:03,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657169052] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:03,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456614942] [2024-11-28 02:54:03,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:03,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:03,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:03,339 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:03,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:54:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:03,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:54:03,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:03,437 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 02:54:03,437 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:03,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456614942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:03,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:03,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-28 02:54:03,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339603240] [2024-11-28 02:54:03,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:03,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:54:03,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:03,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:54:03,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:03,442 INFO L87 Difference]: Start difference. First operand 147 states and 155 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:03,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:03,785 INFO L93 Difference]: Finished difference Result 251 states and 281 transitions. [2024-11-28 02:54:03,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:54:03,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 29 [2024-11-28 02:54:03,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:03,791 INFO L225 Difference]: With dead ends: 251 [2024-11-28 02:54:03,791 INFO L226 Difference]: Without dead ends: 241 [2024-11-28 02:54:03,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:03,792 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 88 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:03,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 206 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:54:03,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-28 02:54:03,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 198. [2024-11-28 02:54:03,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 123 states have (on average 1.7886178861788617) internal successors, (220), 182 states have internal predecessors, (220), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 02:54:03,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 246 transitions. [2024-11-28 02:54:03,817 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 246 transitions. Word has length 29 [2024-11-28 02:54:03,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:03,817 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 246 transitions. [2024-11-28 02:54:03,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:03,817 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 246 transitions. [2024-11-28 02:54:03,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 02:54:03,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:03,822 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:03,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:04,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:04,023 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:04,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:04,024 INFO L85 PathProgramCache]: Analyzing trace with hash -582757329, now seen corresponding path program 1 times [2024-11-28 02:54:04,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:04,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931705121] [2024-11-28 02:54:04,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:04,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:04,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [925203028] [2024-11-28 02:54:04,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:04,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:04,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:04,070 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:04,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:54:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:04,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:54:04,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:04,140 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 02:54:04,140 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:04,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:04,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931705121] [2024-11-28 02:54:04,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:04,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925203028] [2024-11-28 02:54:04,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925203028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:04,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:04,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:54:04,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795666196] [2024-11-28 02:54:04,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:04,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:54:04,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:04,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:54:04,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:04,142 INFO L87 Difference]: Start difference. First operand 198 states and 246 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:54:04,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:04,317 INFO L93 Difference]: Finished difference Result 342 states and 440 transitions. [2024-11-28 02:54:04,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:54:04,318 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2024-11-28 02:54:04,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:04,322 INFO L225 Difference]: With dead ends: 342 [2024-11-28 02:54:04,323 INFO L226 Difference]: Without dead ends: 334 [2024-11-28 02:54:04,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:04,326 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 83 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:04,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 260 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:54:04,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-28 02:54:04,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 295. [2024-11-28 02:54:04,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 212 states have (on average 1.7877358490566038) internal successors, (379), 271 states have internal predecessors, (379), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:04,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 421 transitions. [2024-11-28 02:54:04,378 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 421 transitions. Word has length 29 [2024-11-28 02:54:04,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:04,378 INFO L471 AbstractCegarLoop]: Abstraction has 295 states and 421 transitions. [2024-11-28 02:54:04,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-28 02:54:04,379 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 421 transitions. [2024-11-28 02:54:04,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 02:54:04,380 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:04,380 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:04,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:04,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:04,581 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:04,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:04,581 INFO L85 PathProgramCache]: Analyzing trace with hash -1683990813, now seen corresponding path program 1 times [2024-11-28 02:54:04,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:04,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802822813] [2024-11-28 02:54:04,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:04,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:04,772 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:54:04,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:04,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802822813] [2024-11-28 02:54:04,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802822813] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:04,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370555577] [2024-11-28 02:54:04,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:04,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:04,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:04,775 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:04,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:54:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:04,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:54:04,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:04,994 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 02:54:04,994 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:04,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370555577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:04,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:04,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 02:54:04,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426011423] [2024-11-28 02:54:04,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:04,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:04,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:04,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:04,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:04,996 INFO L87 Difference]: Start difference. First operand 295 states and 421 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:05,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:05,393 INFO L93 Difference]: Finished difference Result 336 states and 463 transitions. [2024-11-28 02:54:05,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:05,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31 [2024-11-28 02:54:05,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:05,402 INFO L225 Difference]: With dead ends: 336 [2024-11-28 02:54:05,402 INFO L226 Difference]: Without dead ends: 333 [2024-11-28 02:54:05,402 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:05,404 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 257 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:05,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 146 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:54:05,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-28 02:54:05,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 296. [2024-11-28 02:54:05,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 213 states have (on average 1.7652582159624413) internal successors, (376), 272 states have internal predecessors, (376), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:05,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 418 transitions. [2024-11-28 02:54:05,477 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 418 transitions. Word has length 31 [2024-11-28 02:54:05,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:05,478 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 418 transitions. [2024-11-28 02:54:05,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:05,478 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 418 transitions. [2024-11-28 02:54:05,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-28 02:54:05,483 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:05,483 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:05,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:05,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:05,684 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:05,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:05,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1684042447, now seen corresponding path program 1 times [2024-11-28 02:54:05,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:05,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74164197] [2024-11-28 02:54:05,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:05,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:05,856 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:54:05,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:05,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74164197] [2024-11-28 02:54:05,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74164197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:05,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282867485] [2024-11-28 02:54:05,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:05,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:05,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:05,859 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:05,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:54:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:05,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:54:05,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:06,048 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 02:54:06,048 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:06,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282867485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:06,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:06,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-28 02:54:06,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538261455] [2024-11-28 02:54:06,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:06,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:54:06,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:06,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:54:06,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:54:06,050 INFO L87 Difference]: Start difference. First operand 296 states and 418 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:06,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:06,952 INFO L93 Difference]: Finished difference Result 373 states and 438 transitions. [2024-11-28 02:54:06,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:54:06,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 31 [2024-11-28 02:54:06,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:06,956 INFO L225 Difference]: With dead ends: 373 [2024-11-28 02:54:06,956 INFO L226 Difference]: Without dead ends: 372 [2024-11-28 02:54:06,956 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:54:06,957 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 416 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:06,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 289 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:54:06,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2024-11-28 02:54:06,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 296. [2024-11-28 02:54:06,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 213 states have (on average 1.7605633802816902) internal successors, (375), 272 states have internal predecessors, (375), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:06,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 417 transitions. [2024-11-28 02:54:06,997 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 417 transitions. Word has length 31 [2024-11-28 02:54:06,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:06,998 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 417 transitions. [2024-11-28 02:54:06,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:06,998 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 417 transitions. [2024-11-28 02:54:06,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 02:54:06,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:06,999 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:07,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:54:07,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:07,199 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:07,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:07,200 INFO L85 PathProgramCache]: Analyzing trace with hash -664107465, now seen corresponding path program 1 times [2024-11-28 02:54:07,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:07,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646230896] [2024-11-28 02:54:07,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:07,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:54:07,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:07,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646230896] [2024-11-28 02:54:07,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646230896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:07,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642324595] [2024-11-28 02:54:07,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:07,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:07,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:07,335 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:07,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:54:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:07,394 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:54:07,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:07,526 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 02:54:07,526 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:07,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1642324595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:07,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:07,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 02:54:07,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128234403] [2024-11-28 02:54:07,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:07,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:07,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:07,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:07,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:07,528 INFO L87 Difference]: Start difference. First operand 296 states and 417 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:08,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:08,173 INFO L93 Difference]: Finished difference Result 314 states and 437 transitions. [2024-11-28 02:54:08,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:08,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2024-11-28 02:54:08,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:08,176 INFO L225 Difference]: With dead ends: 314 [2024-11-28 02:54:08,176 INFO L226 Difference]: Without dead ends: 313 [2024-11-28 02:54:08,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:08,178 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 57 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:08,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 187 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:54:08,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-28 02:54:08,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 297. [2024-11-28 02:54:08,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 214 states have (on average 1.7570093457943925) internal successors, (376), 273 states have internal predecessors, (376), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:08,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 418 transitions. [2024-11-28 02:54:08,202 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 418 transitions. Word has length 32 [2024-11-28 02:54:08,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:08,202 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 418 transitions. [2024-11-28 02:54:08,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:08,202 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 418 transitions. [2024-11-28 02:54:08,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-28 02:54:08,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:08,207 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:08,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 02:54:08,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:08,408 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:08,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:08,408 INFO L85 PathProgramCache]: Analyzing trace with hash -665708231, now seen corresponding path program 1 times [2024-11-28 02:54:08,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:08,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498994369] [2024-11-28 02:54:08,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:08,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:08,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1141207321] [2024-11-28 02:54:08,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:08,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:08,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:08,436 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:08,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 02:54:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:08,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:54:08,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:08,577 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 02:54:08,577 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:08,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:08,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498994369] [2024-11-28 02:54:08,577 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:08,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141207321] [2024-11-28 02:54:08,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141207321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:08,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:08,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:54:08,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848815166] [2024-11-28 02:54:08,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:08,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:54:08,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:08,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:54:08,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:08,579 INFO L87 Difference]: Start difference. First operand 297 states and 418 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:09,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:09,217 INFO L93 Difference]: Finished difference Result 372 states and 436 transitions. [2024-11-28 02:54:09,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:54:09,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2024-11-28 02:54:09,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:09,221 INFO L225 Difference]: With dead ends: 372 [2024-11-28 02:54:09,221 INFO L226 Difference]: Without dead ends: 371 [2024-11-28 02:54:09,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:09,223 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 412 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:09,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 286 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:54:09,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-28 02:54:09,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 297. [2024-11-28 02:54:09,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 214 states have (on average 1.7523364485981308) internal successors, (375), 273 states have internal predecessors, (375), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:09,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 417 transitions. [2024-11-28 02:54:09,255 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 417 transitions. Word has length 32 [2024-11-28 02:54:09,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:09,255 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 417 transitions. [2024-11-28 02:54:09,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:09,255 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 417 transitions. [2024-11-28 02:54:09,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 02:54:09,256 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:09,256 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] [2024-11-28 02:54:09,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 02:54:09,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:09,457 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:09,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:09,458 INFO L85 PathProgramCache]: Analyzing trace with hash 887505253, now seen corresponding path program 1 times [2024-11-28 02:54:09,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:09,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425812023] [2024-11-28 02:54:09,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:09,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:09,636 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:54:09,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:09,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425812023] [2024-11-28 02:54:09,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425812023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:09,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443389223] [2024-11-28 02:54:09,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:09,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:09,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:09,639 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:09,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 02:54:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:09,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:54:09,701 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:09,778 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 02:54:09,778 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:09,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443389223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:09,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:09,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 02:54:09,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540812290] [2024-11-28 02:54:09,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:09,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:09,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:09,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:09,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:09,780 INFO L87 Difference]: Start difference. First operand 297 states and 417 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:10,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:10,587 INFO L93 Difference]: Finished difference Result 343 states and 445 transitions. [2024-11-28 02:54:10,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:10,588 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2024-11-28 02:54:10,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:10,590 INFO L225 Difference]: With dead ends: 343 [2024-11-28 02:54:10,590 INFO L226 Difference]: Without dead ends: 341 [2024-11-28 02:54:10,591 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:10,592 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 93 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:10,592 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 252 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:54:10,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2024-11-28 02:54:10,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 298. [2024-11-28 02:54:10,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 215 states have (on average 1.7395348837209301) internal successors, (374), 274 states have internal predecessors, (374), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 416 transitions. [2024-11-28 02:54:10,618 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 416 transitions. Word has length 33 [2024-11-28 02:54:10,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:10,619 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 416 transitions. [2024-11-28 02:54:10,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:10,619 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 416 transitions. [2024-11-28 02:54:10,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 02:54:10,620 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:10,620 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:10,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 02:54:10,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 02:54:10,825 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:10,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:10,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1742859257, now seen corresponding path program 1 times [2024-11-28 02:54:10,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:10,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047953707] [2024-11-28 02:54:10,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:10,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:10,993 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:54:10,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:10,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047953707] [2024-11-28 02:54:10,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047953707] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:10,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251526077] [2024-11-28 02:54:10,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:10,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:10,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:10,996 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:11,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 02:54:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:11,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:54:11,055 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:11,217 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 02:54:11,217 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:11,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251526077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:11,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:11,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 02:54:11,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559394657] [2024-11-28 02:54:11,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:11,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:11,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:11,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:11,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:11,219 INFO L87 Difference]: Start difference. First operand 298 states and 416 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:12,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:12,438 INFO L93 Difference]: Finished difference Result 344 states and 442 transitions. [2024-11-28 02:54:12,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:12,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-11-28 02:54:12,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:12,442 INFO L225 Difference]: With dead ends: 344 [2024-11-28 02:54:12,442 INFO L226 Difference]: Without dead ends: 340 [2024-11-28 02:54:12,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:12,444 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 92 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:12,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 258 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 02:54:12,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-28 02:54:12,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 299. [2024-11-28 02:54:12,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 216 states have (on average 1.712962962962963) internal successors, (370), 275 states have internal predecessors, (370), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:12,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 412 transitions. [2024-11-28 02:54:12,500 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 412 transitions. Word has length 34 [2024-11-28 02:54:12,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:12,500 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 412 transitions. [2024-11-28 02:54:12,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 02:54:12,501 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 412 transitions. [2024-11-28 02:54:12,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 02:54:12,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:12,501 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:12,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:12,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 02:54:12,702 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:12,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:12,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1230556442, now seen corresponding path program 1 times [2024-11-28 02:54:12,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:12,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085738386] [2024-11-28 02:54:12,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:12,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:12,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315952171] [2024-11-28 02:54:12,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:12,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:12,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:12,721 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:12,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 02:54:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:12,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:54:12,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:12,831 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 02:54:12,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:12,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:12,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085738386] [2024-11-28 02:54:12,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:12,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315952171] [2024-11-28 02:54:12,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315952171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:12,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:12,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:54:12,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499554997] [2024-11-28 02:54:12,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:12,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:54:12,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:12,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:54:12,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:12,835 INFO L87 Difference]: Start difference. First operand 299 states and 412 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 02:54:12,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:12,973 INFO L93 Difference]: Finished difference Result 346 states and 436 transitions. [2024-11-28 02:54:12,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:54:12,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 38 [2024-11-28 02:54:12,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:12,976 INFO L225 Difference]: With dead ends: 346 [2024-11-28 02:54:12,976 INFO L226 Difference]: Without dead ends: 342 [2024-11-28 02:54:12,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:12,977 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 83 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:12,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 274 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:54:12,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-28 02:54:12,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 304. [2024-11-28 02:54:13,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 220 states have (on average 1.690909090909091) internal successors, (372), 279 states have internal predecessors, (372), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 02:54:13,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 416 transitions. [2024-11-28 02:54:13,004 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 416 transitions. Word has length 38 [2024-11-28 02:54:13,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:13,004 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 416 transitions. [2024-11-28 02:54:13,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 02:54:13,004 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 416 transitions. [2024-11-28 02:54:13,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-28 02:54:13,006 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:13,006 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:13,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:13,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 02:54:13,206 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:13,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:13,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1243300854, now seen corresponding path program 1 times [2024-11-28 02:54:13,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:13,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399477357] [2024-11-28 02:54:13,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:13,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:13,351 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:54:13,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:13,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399477357] [2024-11-28 02:54:13,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399477357] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:13,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684847696] [2024-11-28 02:54:13,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:13,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:13,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:13,356 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:13,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 02:54:13,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:13,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:54:13,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:13,569 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 02:54:13,569 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:13,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684847696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:13,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:13,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 02:54:13,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997232943] [2024-11-28 02:54:13,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:13,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:13,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:13,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:13,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:13,573 INFO L87 Difference]: Start difference. First operand 304 states and 416 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (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 02:54:13,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:13,875 INFO L93 Difference]: Finished difference Result 324 states and 420 transitions. [2024-11-28 02:54:13,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:13,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (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 40 [2024-11-28 02:54:13,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:13,880 INFO L225 Difference]: With dead ends: 324 [2024-11-28 02:54:13,880 INFO L226 Difference]: Without dead ends: 322 [2024-11-28 02:54:13,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:13,882 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 225 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:13,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 188 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:54:13,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-28 02:54:13,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 304. [2024-11-28 02:54:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 220 states have (on average 1.6772727272727272) internal successors, (369), 279 states have internal predecessors, (369), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 02:54:13,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 413 transitions. [2024-11-28 02:54:13,927 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 413 transitions. Word has length 40 [2024-11-28 02:54:13,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:13,929 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 413 transitions. [2024-11-28 02:54:13,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (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 02:54:13,929 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 413 transitions. [2024-11-28 02:54:13,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 02:54:13,930 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:13,931 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:13,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:14,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 02:54:14,134 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:14,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:14,134 INFO L85 PathProgramCache]: Analyzing trace with hash 112379385, now seen corresponding path program 1 times [2024-11-28 02:54:14,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:14,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720581282] [2024-11-28 02:54:14,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:14,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:14,263 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:54:14,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:14,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720581282] [2024-11-28 02:54:14,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720581282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:14,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403199745] [2024-11-28 02:54:14,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:14,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:14,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:14,267 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:14,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 02:54:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:14,330 INFO L256 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:54:14,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:14,450 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 02:54:14,450 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:14,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403199745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:14,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:14,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 02:54:14,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189964751] [2024-11-28 02:54:14,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:14,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:14,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:14,452 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:14,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:14,452 INFO L87 Difference]: Start difference. First operand 304 states and 413 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 02:54:14,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:14,742 INFO L93 Difference]: Finished difference Result 324 states and 417 transitions. [2024-11-28 02:54:14,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:14,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 41 [2024-11-28 02:54:14,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:14,745 INFO L225 Difference]: With dead ends: 324 [2024-11-28 02:54:14,745 INFO L226 Difference]: Without dead ends: 322 [2024-11-28 02:54:14,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:14,746 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 161 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:14,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 204 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:54:14,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-28 02:54:14,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 304. [2024-11-28 02:54:14,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 220 states have (on average 1.6636363636363636) internal successors, (366), 279 states have internal predecessors, (366), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 02:54:14,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 410 transitions. [2024-11-28 02:54:14,767 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 410 transitions. Word has length 41 [2024-11-28 02:54:14,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:14,767 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 410 transitions. [2024-11-28 02:54:14,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 02:54:14,768 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 410 transitions. [2024-11-28 02:54:14,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 02:54:14,768 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:14,769 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:14,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:14,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 02:54:14,969 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:14,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:14,970 INFO L85 PathProgramCache]: Analyzing trace with hash -661883990, now seen corresponding path program 1 times [2024-11-28 02:54:14,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:14,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381326212] [2024-11-28 02:54:14,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:14,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:14,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1288846276] [2024-11-28 02:54:14,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:14,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:14,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:14,989 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:14,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 02:54:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:15,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:54:15,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:15,102 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 02:54:15,102 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:15,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:15,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381326212] [2024-11-28 02:54:15,102 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:15,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288846276] [2024-11-28 02:54:15,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288846276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:15,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:15,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:54:15,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570543305] [2024-11-28 02:54:15,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:15,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:15,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:15,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:15,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:54:15,104 INFO L87 Difference]: Start difference. First operand 304 states and 410 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:54:15,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:15,370 INFO L93 Difference]: Finished difference Result 340 states and 424 transitions. [2024-11-28 02:54:15,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:15,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2024-11-28 02:54:15,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:15,373 INFO L225 Difference]: With dead ends: 340 [2024-11-28 02:54:15,373 INFO L226 Difference]: Without dead ends: 338 [2024-11-28 02:54:15,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:54:15,375 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 134 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:15,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 273 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:54:15,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2024-11-28 02:54:15,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 305. [2024-11-28 02:54:15,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 221 states have (on average 1.6515837104072397) internal successors, (365), 280 states have internal predecessors, (365), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 02:54:15,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 409 transitions. [2024-11-28 02:54:15,420 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 409 transitions. Word has length 42 [2024-11-28 02:54:15,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:15,420 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 409 transitions. [2024-11-28 02:54:15,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:54:15,421 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 409 transitions. [2024-11-28 02:54:15,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 02:54:15,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:15,422 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:15,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 02:54:15,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 02:54:15,623 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:15,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:15,623 INFO L85 PathProgramCache]: Analyzing trace with hash 956432877, now seen corresponding path program 1 times [2024-11-28 02:54:15,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:15,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708782789] [2024-11-28 02:54:15,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:15,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:15,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [272863618] [2024-11-28 02:54:15,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:15,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:15,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:15,646 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:15,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 02:54:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:15,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:54:15,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:15,809 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 02:54:15,809 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:15,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:15,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708782789] [2024-11-28 02:54:15,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:15,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272863618] [2024-11-28 02:54:15,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272863618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:15,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:15,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:54:15,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842932553] [2024-11-28 02:54:15,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:15,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:15,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:15,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:15,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:54:15,811 INFO L87 Difference]: Start difference. First operand 305 states and 409 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:54:16,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:16,602 INFO L93 Difference]: Finished difference Result 340 states and 421 transitions. [2024-11-28 02:54:16,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:16,603 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-11-28 02:54:16,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:16,605 INFO L225 Difference]: With dead ends: 340 [2024-11-28 02:54:16,605 INFO L226 Difference]: Without dead ends: 325 [2024-11-28 02:54:16,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:54:16,607 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 80 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:16,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 349 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:54:16,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-28 02:54:16,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 293. [2024-11-28 02:54:16,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 210 states have (on average 1.6714285714285715) internal successors, (351), 269 states have internal predecessors, (351), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 393 transitions. [2024-11-28 02:54:16,630 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 393 transitions. Word has length 43 [2024-11-28 02:54:16,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:16,630 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 393 transitions. [2024-11-28 02:54:16,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:54:16,631 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 393 transitions. [2024-11-28 02:54:16,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 02:54:16,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:16,632 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:16,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 02:54:16,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 02:54:16,833 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:16,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:16,833 INFO L85 PathProgramCache]: Analyzing trace with hash -98494437, now seen corresponding path program 1 times [2024-11-28 02:54:16,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:16,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131196727] [2024-11-28 02:54:16,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:16,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:16,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [106119455] [2024-11-28 02:54:16,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:16,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:16,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:16,862 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:16,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 02:54:16,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:16,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:54:16,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:17,063 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 02:54:17,063 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:17,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:17,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131196727] [2024-11-28 02:54:17,064 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:17,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106119455] [2024-11-28 02:54:17,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106119455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:17,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:17,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:54:17,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174627764] [2024-11-28 02:54:17,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:17,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:17,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:17,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:17,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:54:17,066 INFO L87 Difference]: Start difference. First operand 293 states and 393 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 02:54:17,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:17,396 INFO L93 Difference]: Finished difference Result 317 states and 414 transitions. [2024-11-28 02:54:17,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:17,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 52 [2024-11-28 02:54:17,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:17,399 INFO L225 Difference]: With dead ends: 317 [2024-11-28 02:54:17,399 INFO L226 Difference]: Without dead ends: 316 [2024-11-28 02:54:17,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 49 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 02:54:17,401 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 156 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:17,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 162 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:54:17,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-28 02:54:17,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 293. [2024-11-28 02:54:17,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 210 states have (on average 1.6666666666666667) internal successors, (350), 269 states have internal predecessors, (350), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:17,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 392 transitions. [2024-11-28 02:54:17,427 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 392 transitions. Word has length 52 [2024-11-28 02:54:17,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:17,427 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 392 transitions. [2024-11-28 02:54:17,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-28 02:54:17,427 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 392 transitions. [2024-11-28 02:54:17,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-28 02:54:17,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:17,430 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:17,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 02:54:17,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 02:54:17,630 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:17,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:17,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1231147390, now seen corresponding path program 1 times [2024-11-28 02:54:17,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:17,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702837984] [2024-11-28 02:54:17,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:17,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:17,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673415610] [2024-11-28 02:54:17,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:17,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:17,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:17,681 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:17,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 02:54:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:17,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:54:17,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 02:54:18,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:18,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:18,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702837984] [2024-11-28 02:54:18,067 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:18,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673415610] [2024-11-28 02:54:18,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673415610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:18,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:18,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:54:18,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444610594] [2024-11-28 02:54:18,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:18,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:18,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:18,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:18,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:54:18,069 INFO L87 Difference]: Start difference. First operand 293 states and 392 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:18,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:18,347 INFO L93 Difference]: Finished difference Result 319 states and 413 transitions. [2024-11-28 02:54:18,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:18,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2024-11-28 02:54:18,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:18,350 INFO L225 Difference]: With dead ends: 319 [2024-11-28 02:54:18,351 INFO L226 Difference]: Without dead ends: 318 [2024-11-28 02:54:18,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 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 02:54:18,353 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 88 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:18,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 214 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:54:18,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-28 02:54:18,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 293. [2024-11-28 02:54:18,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 210 states have (on average 1.6571428571428573) internal successors, (348), 269 states have internal predecessors, (348), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:18,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 390 transitions. [2024-11-28 02:54:18,378 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 390 transitions. Word has length 62 [2024-11-28 02:54:18,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:18,378 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 390 transitions. [2024-11-28 02:54:18,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:18,378 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 390 transitions. [2024-11-28 02:54:18,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-28 02:54:18,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:18,379 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:18,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 02:54:18,580 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 02:54:18,580 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:18,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:18,581 INFO L85 PathProgramCache]: Analyzing trace with hash -489136465, now seen corresponding path program 1 times [2024-11-28 02:54:18,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:18,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210265926] [2024-11-28 02:54:18,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:18,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:18,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [657487988] [2024-11-28 02:54:18,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:18,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:18,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:18,617 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:18,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 02:54:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:18,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:54:18,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:21,074 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 02:54:21,078 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:21,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:21,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210265926] [2024-11-28 02:54:21,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:21,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657487988] [2024-11-28 02:54:21,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657487988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:21,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:21,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:54:21,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230081924] [2024-11-28 02:54:21,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:21,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:21,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:21,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:21,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-11-28 02:54:21,080 INFO L87 Difference]: Start difference. First operand 293 states and 390 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:25,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:54:26,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:54:28,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:54:30,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:54:30,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:30,882 INFO L93 Difference]: Finished difference Result 319 states and 411 transitions. [2024-11-28 02:54:30,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:30,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2024-11-28 02:54:30,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:30,886 INFO L225 Difference]: With dead ends: 319 [2024-11-28 02:54:30,886 INFO L226 Difference]: Without dead ends: 318 [2024-11-28 02:54:30,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=6, Invalid=5, Unknown=1, NotChecked=0, Total=12 [2024-11-28 02:54:30,887 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 86 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:30,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 212 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 4 Unknown, 0 Unchecked, 9.8s Time] [2024-11-28 02:54:30,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2024-11-28 02:54:30,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 293. [2024-11-28 02:54:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 210 states have (on average 1.6476190476190475) internal successors, (346), 269 states have internal predecessors, (346), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:30,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 388 transitions. [2024-11-28 02:54:30,910 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 388 transitions. Word has length 63 [2024-11-28 02:54:30,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:30,910 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 388 transitions. [2024-11-28 02:54:30,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:30,911 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 388 transitions. [2024-11-28 02:54:30,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 02:54:30,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:30,911 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:30,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:31,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:31,112 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:31,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:31,113 INFO L85 PathProgramCache]: Analyzing trace with hash 2016638880, now seen corresponding path program 1 times [2024-11-28 02:54:31,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:31,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906170210] [2024-11-28 02:54:31,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:31,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:31,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [455155918] [2024-11-28 02:54:31,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:31,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:31,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:31,134 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:31,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 02:54:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:31,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:54:31,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:31,293 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 02:54:31,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:31,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:31,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906170210] [2024-11-28 02:54:31,294 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:31,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455155918] [2024-11-28 02:54:31,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455155918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:31,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:31,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:54:31,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062486077] [2024-11-28 02:54:31,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:31,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:31,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:31,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:31,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:54:31,296 INFO L87 Difference]: Start difference. First operand 293 states and 388 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:31,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:31,897 INFO L93 Difference]: Finished difference Result 312 states and 399 transitions. [2024-11-28 02:54:31,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:31,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2024-11-28 02:54:31,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:31,899 INFO L225 Difference]: With dead ends: 312 [2024-11-28 02:54:31,899 INFO L226 Difference]: Without dead ends: 310 [2024-11-28 02:54:31,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 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 02:54:31,900 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 54 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:31,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 305 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:54:31,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-28 02:54:31,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 293. [2024-11-28 02:54:31,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 210 states have (on average 1.6285714285714286) internal successors, (342), 269 states have internal predecessors, (342), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:31,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 384 transitions. [2024-11-28 02:54:31,920 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 384 transitions. Word has length 64 [2024-11-28 02:54:31,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:31,921 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 384 transitions. [2024-11-28 02:54:31,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:31,921 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 384 transitions. [2024-11-28 02:54:31,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 02:54:31,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:31,922 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:31,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:32,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:32,123 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:32,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:32,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1908704047, now seen corresponding path program 1 times [2024-11-28 02:54:32,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:32,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230108902] [2024-11-28 02:54:32,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:32,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:32,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741827669] [2024-11-28 02:54:32,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:32,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:32,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:32,143 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:32,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 02:54:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:32,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:54:32,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:32,355 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 02:54:32,356 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:32,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:32,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230108902] [2024-11-28 02:54:32,356 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:32,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741827669] [2024-11-28 02:54:32,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741827669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:32,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:32,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:54:32,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063219392] [2024-11-28 02:54:32,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:32,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:32,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:32,357 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:32,357 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:54:32,358 INFO L87 Difference]: Start difference. First operand 293 states and 384 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:32,865 INFO L93 Difference]: Finished difference Result 312 states and 395 transitions. [2024-11-28 02:54:32,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:32,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2024-11-28 02:54:32,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:32,867 INFO L225 Difference]: With dead ends: 312 [2024-11-28 02:54:32,868 INFO L226 Difference]: Without dead ends: 310 [2024-11-28 02:54:32,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 62 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 02:54:32,869 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 89 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:32,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 249 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:54:32,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-28 02:54:32,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 293. [2024-11-28 02:54:32,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 210 states have (on average 1.6095238095238096) internal successors, (338), 269 states have internal predecessors, (338), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:32,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 380 transitions. [2024-11-28 02:54:32,892 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 380 transitions. Word has length 65 [2024-11-28 02:54:32,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:32,892 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 380 transitions. [2024-11-28 02:54:32,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:32,894 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 380 transitions. [2024-11-28 02:54:32,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 02:54:32,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:32,895 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:32,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:33,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:33,096 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:33,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:33,097 INFO L85 PathProgramCache]: Analyzing trace with hash 583166470, now seen corresponding path program 1 times [2024-11-28 02:54:33,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:33,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873583499] [2024-11-28 02:54:33,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:33,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:33,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [645566234] [2024-11-28 02:54:33,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:33,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:33,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:33,125 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:33,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 02:54:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:33,195 INFO L256 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:54:33,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:33,412 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 02:54:33,412 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:33,770 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 02:54:33,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:33,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873583499] [2024-11-28 02:54:33,771 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:33,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645566234] [2024-11-28 02:54:33,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645566234] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:54:33,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:54:33,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-28 02:54:33,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122893264] [2024-11-28 02:54:33,772 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:33,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:54:33,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:33,773 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:54:33,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:54:33,773 INFO L87 Difference]: Start difference. First operand 293 states and 380 transitions. Second operand has 9 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:54:34,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:34,542 INFO L93 Difference]: Finished difference Result 311 states and 381 transitions. [2024-11-28 02:54:34,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:54:34,545 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) Word has length 70 [2024-11-28 02:54:34,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:34,547 INFO L225 Difference]: With dead ends: 311 [2024-11-28 02:54:34,547 INFO L226 Difference]: Without dead ends: 310 [2024-11-28 02:54:34,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:54:34,550 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 277 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:34,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 345 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:54:34,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-28 02:54:34,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 293. [2024-11-28 02:54:34,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 210 states have (on average 1.5952380952380953) internal successors, (335), 269 states have internal predecessors, (335), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:34,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 377 transitions. [2024-11-28 02:54:34,577 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 377 transitions. Word has length 70 [2024-11-28 02:54:34,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:34,578 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 377 transitions. [2024-11-28 02:54:34,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.875) internal successors, (79), 7 states have internal predecessors, (79), 3 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 5 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:54:34,578 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 377 transitions. [2024-11-28 02:54:34,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-28 02:54:34,579 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:34,579 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:34,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 02:54:34,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:34,784 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:34,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:34,784 INFO L85 PathProgramCache]: Analyzing trace with hash 898291511, now seen corresponding path program 1 times [2024-11-28 02:54:34,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:34,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495130921] [2024-11-28 02:54:34,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:34,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:34,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [683705477] [2024-11-28 02:54:34,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:34,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:34,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:34,807 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:34,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 02:54:34,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:34,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 02:54:34,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 02:54:35,260 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:35,977 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 02:54:35,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:35,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495130921] [2024-11-28 02:54:35,977 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:35,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683705477] [2024-11-28 02:54:35,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683705477] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:54:35,978 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:54:35,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 02:54:35,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069180140] [2024-11-28 02:54:35,978 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:35,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:54:35,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:35,979 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:54:35,979 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:54:35,979 INFO L87 Difference]: Start difference. First operand 293 states and 377 transitions. Second operand has 11 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 02:54:37,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:37,254 INFO L93 Difference]: Finished difference Result 311 states and 378 transitions. [2024-11-28 02:54:37,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:54:37,254 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) Word has length 71 [2024-11-28 02:54:37,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:37,256 INFO L225 Difference]: With dead ends: 311 [2024-11-28 02:54:37,256 INFO L226 Difference]: Without dead ends: 310 [2024-11-28 02:54:37,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:54:37,257 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 186 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:37,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 323 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 02:54:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-28 02:54:37,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 293. [2024-11-28 02:54:37,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 210 states have (on average 1.5809523809523809) internal successors, (332), 269 states have internal predecessors, (332), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:37,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 374 transitions. [2024-11-28 02:54:37,276 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 374 transitions. Word has length 71 [2024-11-28 02:54:37,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:37,276 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 374 transitions. [2024-11-28 02:54:37,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 10.25) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-28 02:54:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 374 transitions. [2024-11-28 02:54:37,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:54:37,277 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:37,278 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:37,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:37,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:37,479 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:37,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:37,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2077233192, now seen corresponding path program 1 times [2024-11-28 02:54:37,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:37,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359224653] [2024-11-28 02:54:37,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:37,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:37,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:37,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [172584724] [2024-11-28 02:54:37,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:37,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:37,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:37,503 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:37,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 02:54:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:37,602 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:54:37,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:38,188 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 02:54:38,188 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:42,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:42,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359224653] [2024-11-28 02:54:42,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:42,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172584724] [2024-11-28 02:54:42,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172584724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:42,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:42,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 02:54:42,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54076976] [2024-11-28 02:54:42,607 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:42,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:54:42,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:42,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:54:42,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-11-28 02:54:42,609 INFO L87 Difference]: Start difference. First operand 293 states and 374 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:43,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:43,530 INFO L93 Difference]: Finished difference Result 311 states and 385 transitions. [2024-11-28 02:54:43,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:54:43,531 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-28 02:54:43,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:43,532 INFO L225 Difference]: With dead ends: 311 [2024-11-28 02:54:43,532 INFO L226 Difference]: Without dead ends: 308 [2024-11-28 02:54:43,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=26, Invalid=63, Unknown=1, NotChecked=0, Total=90 [2024-11-28 02:54:43,533 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 164 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:43,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 302 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:54:43,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2024-11-28 02:54:43,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 293. [2024-11-28 02:54:43,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 210 states have (on average 1.5523809523809524) internal successors, (326), 269 states have internal predecessors, (326), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:43,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 368 transitions. [2024-11-28 02:54:43,557 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 368 transitions. Word has length 72 [2024-11-28 02:54:43,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:43,557 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 368 transitions. [2024-11-28 02:54:43,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:43,558 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 368 transitions. [2024-11-28 02:54:43,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 02:54:43,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:43,558 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:43,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:43,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:43,760 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:43,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:43,761 INFO L85 PathProgramCache]: Analyzing trace with hash -30280359, now seen corresponding path program 1 times [2024-11-28 02:54:43,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:43,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176804096] [2024-11-28 02:54:43,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:43,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:43,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1641324553] [2024-11-28 02:54:43,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:43,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:43,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:43,783 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:43,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 02:54:43,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:43,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 02:54:43,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:44,741 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 02:54:44,741 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:44,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:44,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176804096] [2024-11-28 02:54:44,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:44,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641324553] [2024-11-28 02:54:44,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641324553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:44,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:44,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 02:54:44,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061233594] [2024-11-28 02:54:44,916 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:44,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:54:44,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:44,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:54:44,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:44,918 INFO L87 Difference]: Start difference. First operand 293 states and 368 transitions. Second operand has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:45,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:45,734 INFO L93 Difference]: Finished difference Result 299 states and 369 transitions. [2024-11-28 02:54:45,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:54:45,734 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2024-11-28 02:54:45,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:45,736 INFO L225 Difference]: With dead ends: 299 [2024-11-28 02:54:45,736 INFO L226 Difference]: Without dead ends: 296 [2024-11-28 02:54:45,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:45,737 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 135 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:45,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 229 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:54:45,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-28 02:54:45,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 293. [2024-11-28 02:54:45,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 210 states have (on average 1.5238095238095237) internal successors, (320), 269 states have internal predecessors, (320), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:45,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 362 transitions. [2024-11-28 02:54:45,759 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 362 transitions. Word has length 73 [2024-11-28 02:54:45,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:45,760 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 362 transitions. [2024-11-28 02:54:45,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 02:54:45,760 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 362 transitions. [2024-11-28 02:54:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 02:54:45,761 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:45,761 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:45,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 02:54:45,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:45,961 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:45,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:45,962 INFO L85 PathProgramCache]: Analyzing trace with hash -610389073, now seen corresponding path program 1 times [2024-11-28 02:54:45,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:45,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162032427] [2024-11-28 02:54:45,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:45,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:46,051 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:54:46,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:46,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162032427] [2024-11-28 02:54:46,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162032427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:46,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:46,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:54:46,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686427031] [2024-11-28 02:54:46,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:46,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:54:46,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:46,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:54:46,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:46,054 INFO L87 Difference]: Start difference. First operand 293 states and 362 transitions. Second operand has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 02:54:46,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:46,135 INFO L93 Difference]: Finished difference Result 293 states and 362 transitions. [2024-11-28 02:54:46,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:54:46,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 86 [2024-11-28 02:54:46,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:46,138 INFO L225 Difference]: With dead ends: 293 [2024-11-28 02:54:46,138 INFO L226 Difference]: Without dead ends: 292 [2024-11-28 02:54:46,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:46,139 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 1 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:46,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 271 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:54:46,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-28 02:54:46,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-11-28 02:54:46,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 210 states have (on average 1.5047619047619047) internal successors, (316), 268 states have internal predecessors, (316), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:46,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 358 transitions. [2024-11-28 02:54:46,158 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 358 transitions. Word has length 86 [2024-11-28 02:54:46,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:46,158 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 358 transitions. [2024-11-28 02:54:46,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 02:54:46,158 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 358 transitions. [2024-11-28 02:54:46,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-28 02:54:46,159 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:46,159 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:46,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 02:54:46,160 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:46,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:46,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1742191928, now seen corresponding path program 1 times [2024-11-28 02:54:46,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:46,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289493480] [2024-11-28 02:54:46,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:46,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:46,297 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:54:46,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:46,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289493480] [2024-11-28 02:54:46,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289493480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:46,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:46,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:54:46,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464504429] [2024-11-28 02:54:46,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:46,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:54:46,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:46,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:54:46,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:46,299 INFO L87 Difference]: Start difference. First operand 292 states and 358 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:47,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:47,197 INFO L93 Difference]: Finished difference Result 296 states and 359 transitions. [2024-11-28 02:54:47,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:54:47,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2024-11-28 02:54:47,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:47,200 INFO L225 Difference]: With dead ends: 296 [2024-11-28 02:54:47,200 INFO L226 Difference]: Without dead ends: 295 [2024-11-28 02:54:47,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:47,201 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 247 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:47,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 188 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:54:47,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2024-11-28 02:54:47,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 292. [2024-11-28 02:54:47,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 210 states have (on average 1.5) internal successors, (315), 268 states have internal predecessors, (315), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:47,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 357 transitions. [2024-11-28 02:54:47,221 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 357 transitions. Word has length 87 [2024-11-28 02:54:47,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:47,222 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 357 transitions. [2024-11-28 02:54:47,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:47,222 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 357 transitions. [2024-11-28 02:54:47,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:54:47,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:47,223 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:47,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 02:54:47,223 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:47,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:47,224 INFO L85 PathProgramCache]: Analyzing trace with hash 789268328, now seen corresponding path program 1 times [2024-11-28 02:54:47,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:47,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347925122] [2024-11-28 02:54:47,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:47,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:47,367 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:54:47,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:47,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347925122] [2024-11-28 02:54:47,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347925122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:47,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:47,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:54:47,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988844932] [2024-11-28 02:54:47,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:47,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:54:47,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:47,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:54:47,369 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:47,369 INFO L87 Difference]: Start difference. First operand 292 states and 357 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 02:54:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:47,494 INFO L93 Difference]: Finished difference Result 307 states and 368 transitions. [2024-11-28 02:54:47,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:54:47,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 89 [2024-11-28 02:54:47,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:47,496 INFO L225 Difference]: With dead ends: 307 [2024-11-28 02:54:47,496 INFO L226 Difference]: Without dead ends: 306 [2024-11-28 02:54:47,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:47,499 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 14 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:47,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 413 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:54:47,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-28 02:54:47,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 297. [2024-11-28 02:54:47,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 215 states have (on average 1.4883720930232558) internal successors, (320), 273 states have internal predecessors, (320), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:47,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 362 transitions. [2024-11-28 02:54:47,521 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 362 transitions. Word has length 89 [2024-11-28 02:54:47,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:47,522 INFO L471 AbstractCegarLoop]: Abstraction has 297 states and 362 transitions. [2024-11-28 02:54:47,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 02:54:47,523 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 362 transitions. [2024-11-28 02:54:47,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 02:54:47,526 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:47,526 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:47,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 02:54:47,526 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr47ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:47,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:47,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1302485441, now seen corresponding path program 1 times [2024-11-28 02:54:47,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:47,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894075905] [2024-11-28 02:54:47,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:47,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:47,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1478957830] [2024-11-28 02:54:47,556 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:47,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:47,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:47,558 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:47,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 02:54:47,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:47,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:54:47,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:47,887 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:54:47,887 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:47,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:47,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894075905] [2024-11-28 02:54:47,888 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:47,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478957830] [2024-11-28 02:54:47,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478957830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:47,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:47,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:54:47,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436780483] [2024-11-28 02:54:47,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:47,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:54:47,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:47,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:54:47,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:54:47,891 INFO L87 Difference]: Start difference. First operand 297 states and 362 transitions. Second operand has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 02:54:48,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:48,219 INFO L93 Difference]: Finished difference Result 307 states and 366 transitions. [2024-11-28 02:54:48,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:54:48,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 90 [2024-11-28 02:54:48,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:48,220 INFO L225 Difference]: With dead ends: 307 [2024-11-28 02:54:48,220 INFO L226 Difference]: Without dead ends: 306 [2024-11-28 02:54:48,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 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 02:54:48,221 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 15 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:48,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 292 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:54:48,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2024-11-28 02:54:48,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 299. [2024-11-28 02:54:48,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 217 states have (on average 1.4838709677419355) internal successors, (322), 275 states have internal predecessors, (322), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:48,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 364 transitions. [2024-11-28 02:54:48,251 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 364 transitions. Word has length 90 [2024-11-28 02:54:48,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:48,251 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 364 transitions. [2024-11-28 02:54:48,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.666666666666668) internal successors, (56), 4 states have internal predecessors, (56), 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 02:54:48,252 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 364 transitions. [2024-11-28 02:54:48,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 02:54:48,253 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:48,253 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:48,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-28 02:54:48,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 02:54:48,457 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:48,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:48,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1254770278, now seen corresponding path program 1 times [2024-11-28 02:54:48,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:48,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187089361] [2024-11-28 02:54:48,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:48,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:48,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1792472090] [2024-11-28 02:54:48,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:48,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:48,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:48,486 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:48,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 02:54:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:48,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 02:54:48,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:48,844 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 02:54:48,844 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:48,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:48,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187089361] [2024-11-28 02:54:48,967 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:48,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792472090] [2024-11-28 02:54:48,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792472090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:48,968 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:48,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 02:54:48,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743998632] [2024-11-28 02:54:48,968 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:48,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:54:48,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:48,969 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:54:48,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:54:48,970 INFO L87 Difference]: Start difference. First operand 299 states and 364 transitions. Second operand has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:49,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:49,682 INFO L93 Difference]: Finished difference Result 302 states and 364 transitions. [2024-11-28 02:54:49,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:54:49,682 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 90 [2024-11-28 02:54:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:49,684 INFO L225 Difference]: With dead ends: 302 [2024-11-28 02:54:49,684 INFO L226 Difference]: Without dead ends: 300 [2024-11-28 02:54:49,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:54:49,686 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 194 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:49,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 441 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:54:49,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-28 02:54:49,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 299. [2024-11-28 02:54:49,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 217 states have (on average 1.4746543778801844) internal successors, (320), 275 states have internal predecessors, (320), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-28 02:54:49,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 362 transitions. [2024-11-28 02:54:49,709 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 362 transitions. Word has length 90 [2024-11-28 02:54:49,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:49,710 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 362 transitions. [2024-11-28 02:54:49,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:49,710 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 362 transitions. [2024-11-28 02:54:49,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 02:54:49,711 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:49,711 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:49,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 02:54:49,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:49,915 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:49,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:49,916 INFO L85 PathProgramCache]: Analyzing trace with hash -243172884, now seen corresponding path program 1 times [2024-11-28 02:54:49,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:49,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540092704] [2024-11-28 02:54:49,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:49,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:49,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1861759606] [2024-11-28 02:54:49,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:49,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:49,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:49,943 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:49,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 02:54:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:50,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:54:50,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:50,476 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 02:54:50,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:50,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:50,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540092704] [2024-11-28 02:54:50,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:50,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861759606] [2024-11-28 02:54:50,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861759606] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:50,706 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:50,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 02:54:50,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305197384] [2024-11-28 02:54:50,707 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:50,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:54:50,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:50,708 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:54:50,708 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:54:50,708 INFO L87 Difference]: Start difference. First operand 299 states and 362 transitions. Second operand has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:51,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:51,483 INFO L93 Difference]: Finished difference Result 348 states and 418 transitions. [2024-11-28 02:54:51,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:54:51,484 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) Word has length 91 [2024-11-28 02:54:51,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:51,485 INFO L225 Difference]: With dead ends: 348 [2024-11-28 02:54:51,485 INFO L226 Difference]: Without dead ends: 346 [2024-11-28 02:54:51,486 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:54:51,486 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 314 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:51,487 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 357 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:54:51,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-28 02:54:51,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 344. [2024-11-28 02:54:51,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 258 states have (on average 1.4147286821705427) internal successors, (365), 316 states have internal predecessors, (365), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 02:54:51,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 415 transitions. [2024-11-28 02:54:51,514 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 415 transitions. Word has length 91 [2024-11-28 02:54:51,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:51,515 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 415 transitions. [2024-11-28 02:54:51,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 8 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:51,515 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 415 transitions. [2024-11-28 02:54:51,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 02:54:51,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:51,516 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:51,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:51,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:51,721 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:51,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:51,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1051575260, now seen corresponding path program 1 times [2024-11-28 02:54:51,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:51,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268384398] [2024-11-28 02:54:51,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:51,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:51,817 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:54:51,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:51,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268384398] [2024-11-28 02:54:51,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268384398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:51,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:51,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:54:51,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181142555] [2024-11-28 02:54:51,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:51,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:54:51,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:51,819 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:54:51,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:51,819 INFO L87 Difference]: Start difference. First operand 344 states and 415 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 02:54:52,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:52,432 INFO L93 Difference]: Finished difference Result 375 states and 415 transitions. [2024-11-28 02:54:52,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:54:52,432 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 92 [2024-11-28 02:54:52,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:52,434 INFO L225 Difference]: With dead ends: 375 [2024-11-28 02:54:52,436 INFO L226 Difference]: Without dead ends: 374 [2024-11-28 02:54:52,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:54:52,438 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 133 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:52,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 526 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:54:52,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-28 02:54:52,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 344. [2024-11-28 02:54:52,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 258 states have (on average 1.4031007751937985) internal successors, (362), 316 states have internal predecessors, (362), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 02:54:52,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 412 transitions. [2024-11-28 02:54:52,486 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 412 transitions. Word has length 92 [2024-11-28 02:54:52,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:52,486 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 412 transitions. [2024-11-28 02:54:52,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-28 02:54:52,487 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 412 transitions. [2024-11-28 02:54:52,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 02:54:52,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:52,488 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:52,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 02:54:52,488 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:52,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:52,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1609052884, now seen corresponding path program 1 times [2024-11-28 02:54:52,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:52,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48034198] [2024-11-28 02:54:52,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:52,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:54:52,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:52,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48034198] [2024-11-28 02:54:52,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48034198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:52,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:52,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:54:52,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813543622] [2024-11-28 02:54:52,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:52,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:54:52,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:52,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:54:52,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:52,669 INFO L87 Difference]: Start difference. First operand 344 states and 412 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 02:54:53,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:53,371 INFO L93 Difference]: Finished difference Result 357 states and 422 transitions. [2024-11-28 02:54:53,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:54:53,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 93 [2024-11-28 02:54:53,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:53,373 INFO L225 Difference]: With dead ends: 357 [2024-11-28 02:54:53,373 INFO L226 Difference]: Without dead ends: 356 [2024-11-28 02:54:53,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:53,374 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 12 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:53,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 494 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:54:53,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-28 02:54:53,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 349. [2024-11-28 02:54:53,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 263 states have (on average 1.403041825095057) internal successors, (369), 321 states have internal predecessors, (369), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 02:54:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 419 transitions. [2024-11-28 02:54:53,399 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 419 transitions. Word has length 93 [2024-11-28 02:54:53,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:53,399 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 419 transitions. [2024-11-28 02:54:53,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 02:54:53,399 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 419 transitions. [2024-11-28 02:54:53,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 02:54:53,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:53,402 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:53,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 02:54:53,402 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:53,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:53,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1760905234, now seen corresponding path program 1 times [2024-11-28 02:54:53,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:53,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407746269] [2024-11-28 02:54:53,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:53,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:53,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340235027] [2024-11-28 02:54:53,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:53,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:53,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:53,427 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:53,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 02:54:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:53,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:54:53,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:53,728 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:54:53,728 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:53,951 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-28 02:54:53,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:53,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407746269] [2024-11-28 02:54:53,951 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:53,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340235027] [2024-11-28 02:54:53,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340235027] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:53,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:53,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-28 02:54:53,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134225668] [2024-11-28 02:54:53,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:53,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:54:53,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:53,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:54:53,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:54:53,953 INFO L87 Difference]: Start difference. First operand 349 states and 419 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:54,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:54,653 INFO L93 Difference]: Finished difference Result 353 states and 419 transitions. [2024-11-28 02:54:54,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:54:54,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 93 [2024-11-28 02:54:54,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:54,655 INFO L225 Difference]: With dead ends: 353 [2024-11-28 02:54:54,655 INFO L226 Difference]: Without dead ends: 352 [2024-11-28 02:54:54,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:54:54,655 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 221 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:54,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 259 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:54:54,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-28 02:54:54,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 349. [2024-11-28 02:54:54,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 263 states have (on average 1.391634980988593) internal successors, (366), 321 states have internal predecessors, (366), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 02:54:54,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 416 transitions. [2024-11-28 02:54:54,682 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 416 transitions. Word has length 93 [2024-11-28 02:54:54,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:54,682 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 416 transitions. [2024-11-28 02:54:54,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:54,682 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 416 transitions. [2024-11-28 02:54:54,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 02:54:54,683 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:54,683 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:54,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:54,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:54,888 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:54,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:54,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1658968323, now seen corresponding path program 1 times [2024-11-28 02:54:54,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:54,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296306524] [2024-11-28 02:54:54,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:54,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:54:54,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [963167822] [2024-11-28 02:54:54,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:54,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:54,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:54,915 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:54,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 02:54:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:54,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:54:54,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:55,211 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:54:55,211 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:55,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:55,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296306524] [2024-11-28 02:54:55,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:54:55,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963167822] [2024-11-28 02:54:55,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [963167822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:55,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:55,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:54:55,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518547238] [2024-11-28 02:54:55,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:55,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:54:55,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:55,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:54:55,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:55,214 INFO L87 Difference]: Start difference. First operand 349 states and 416 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:55,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:55,496 INFO L93 Difference]: Finished difference Result 355 states and 419 transitions. [2024-11-28 02:54:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:54:55,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 94 [2024-11-28 02:54:55,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:55,498 INFO L225 Difference]: With dead ends: 355 [2024-11-28 02:54:55,498 INFO L226 Difference]: Without dead ends: 354 [2024-11-28 02:54:55,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:54:55,498 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 58 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:55,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 419 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:54:55,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-28 02:54:55,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 351. [2024-11-28 02:54:55,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 265 states have (on average 1.3886792452830188) internal successors, (368), 323 states have internal predecessors, (368), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 02:54:55,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 418 transitions. [2024-11-28 02:54:55,526 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 418 transitions. Word has length 94 [2024-11-28 02:54:55,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:55,526 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 418 transitions. [2024-11-28 02:54:55,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:55,526 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 418 transitions. [2024-11-28 02:54:55,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 02:54:55,527 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:55,527 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:55,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:55,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 02:54:55,728 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:55,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:55,729 INFO L85 PathProgramCache]: Analyzing trace with hash 835693503, now seen corresponding path program 1 times [2024-11-28 02:54:55,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:55,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542839397] [2024-11-28 02:54:55,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:55,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:55,922 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 02:54:55,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:55,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542839397] [2024-11-28 02:54:55,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542839397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:55,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251782957] [2024-11-28 02:54:55,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:55,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:55,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:55,927 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:55,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 02:54:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:56,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:54:56,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:56,126 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 02:54:56,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:54:56,307 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 02:54:56,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251782957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:54:56,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:54:56,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 9 [2024-11-28 02:54:56,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152948760] [2024-11-28 02:54:56,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:54:56,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:54:56,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:56,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:54:56,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:54:56,308 INFO L87 Difference]: Start difference. First operand 351 states and 418 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 02:54:57,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:57,533 INFO L93 Difference]: Finished difference Result 737 states and 846 transitions. [2024-11-28 02:54:57,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:54:57,533 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 96 [2024-11-28 02:54:57,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:57,535 INFO L225 Difference]: With dead ends: 737 [2024-11-28 02:54:57,535 INFO L226 Difference]: Without dead ends: 708 [2024-11-28 02:54:57,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 187 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:54:57,536 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 700 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 692 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:57,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 690 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 692 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 02:54:57,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-28 02:54:57,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 502. [2024-11-28 02:54:57,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 404 states have (on average 1.551980198019802) internal successors, (627), 462 states have internal predecessors, (627), 37 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-28 02:54:57,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 701 transitions. [2024-11-28 02:54:57,575 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 701 transitions. Word has length 96 [2024-11-28 02:54:57,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:57,575 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 701 transitions. [2024-11-28 02:54:57,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 02:54:57,576 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 701 transitions. [2024-11-28 02:54:57,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-28 02:54:57,577 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:57,577 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:54:57,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 02:54:57,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-28 02:54:57,781 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:54:57,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:57,781 INFO L85 PathProgramCache]: Analyzing trace with hash -57473777, now seen corresponding path program 1 times [2024-11-28 02:54:57,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:57,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094291105] [2024-11-28 02:54:57,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:57,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-28 02:54:58,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:58,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094291105] [2024-11-28 02:54:58,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094291105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:54:58,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740675747] [2024-11-28 02:54:58,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:58,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:54:58,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:54:58,051 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:54:58,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 02:54:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:58,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:54:58,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:54:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:54:58,419 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:54:58,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740675747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:58,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:54:58,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2024-11-28 02:54:58,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305319379] [2024-11-28 02:54:58,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:58,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:54:58,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:58,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:54:58,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-28 02:54:58,422 INFO L87 Difference]: Start difference. First operand 502 states and 701 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:59,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:59,922 INFO L93 Difference]: Finished difference Result 954 states and 1272 transitions. [2024-11-28 02:54:59,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:54:59,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 98 [2024-11-28 02:54:59,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:59,927 INFO L225 Difference]: With dead ends: 954 [2024-11-28 02:54:59,927 INFO L226 Difference]: Without dead ends: 953 [2024-11-28 02:54:59,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2024-11-28 02:54:59,929 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 752 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:59,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 708 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 02:54:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2024-11-28 02:54:59,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 695. [2024-11-28 02:54:59,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 581 states have (on average 1.6454388984509467) internal successors, (956), 639 states have internal predecessors, (956), 53 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-28 02:54:59,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1062 transitions. [2024-11-28 02:54:59,992 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1062 transitions. Word has length 98 [2024-11-28 02:54:59,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:59,995 INFO L471 AbstractCegarLoop]: Abstraction has 695 states and 1062 transitions. [2024-11-28 02:54:59,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-28 02:54:59,995 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1062 transitions. [2024-11-28 02:54:59,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-28 02:54:59,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:59,996 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:00,007 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 02:55:00,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 02:55:00,197 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:00,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:00,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1781687013, now seen corresponding path program 1 times [2024-11-28 02:55:00,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:00,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588893189] [2024-11-28 02:55:00,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:00,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:00,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:00,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [498894038] [2024-11-28 02:55:00,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:00,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:00,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:00,233 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:00,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 02:55:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:00,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 02:55:00,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:55:00,446 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:00,624 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-28 02:55:00,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:00,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588893189] [2024-11-28 02:55:00,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:00,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498894038] [2024-11-28 02:55:00,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498894038] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:00,625 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:55:00,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 02:55:00,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912414996] [2024-11-28 02:55:00,625 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:00,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:55:00,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:00,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:55:00,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:55:00,627 INFO L87 Difference]: Start difference. First operand 695 states and 1062 transitions. Second operand has 10 states, 9 states have (on average 13.666666666666666) internal successors, (123), 10 states have internal predecessors, (123), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-28 02:55:01,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:01,671 INFO L93 Difference]: Finished difference Result 1096 states and 1642 transitions. [2024-11-28 02:55:01,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:55:01,671 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.666666666666666) internal successors, (123), 10 states have internal predecessors, (123), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 99 [2024-11-28 02:55:01,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:01,676 INFO L225 Difference]: With dead ends: 1096 [2024-11-28 02:55:01,676 INFO L226 Difference]: Without dead ends: 1095 [2024-11-28 02:55:01,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2024-11-28 02:55:01,678 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 767 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:01,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 551 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:55:01,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1095 states. [2024-11-28 02:55:01,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1095 to 848. [2024-11-28 02:55:01,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 722 states have (on average 1.6731301939058172) internal successors, (1208), 780 states have internal predecessors, (1208), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-28 02:55:01,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1338 transitions. [2024-11-28 02:55:01,745 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1338 transitions. Word has length 99 [2024-11-28 02:55:01,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:01,746 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1338 transitions. [2024-11-28 02:55:01,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.666666666666666) internal successors, (123), 10 states have internal predecessors, (123), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-28 02:55:01,746 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1338 transitions. [2024-11-28 02:55:01,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-28 02:55:01,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:01,747 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:55:01,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:01,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 02:55:01,952 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:01,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:01,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1351301816, now seen corresponding path program 1 times [2024-11-28 02:55:01,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:01,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267314116] [2024-11-28 02:55:01,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:01,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:01,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [360311111] [2024-11-28 02:55:01,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:01,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:01,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:01,978 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:01,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 02:55:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:02,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:55:02,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:02,721 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 02:55:02,721 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:02,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:02,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267314116] [2024-11-28 02:55:02,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:02,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360311111] [2024-11-28 02:55:02,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360311111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:02,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:02,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 02:55:02,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239689777] [2024-11-28 02:55:02,873 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:02,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:55:02,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:02,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:55:02,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:55:02,874 INFO L87 Difference]: Start difference. First operand 848 states and 1338 transitions. Second operand has 10 states, 8 states have (on average 8.625) internal successors, (69), 9 states have internal predecessors, (69), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:55:03,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:03,869 INFO L93 Difference]: Finished difference Result 932 states and 1444 transitions. [2024-11-28 02:55:03,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:55:03,870 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.625) internal successors, (69), 9 states have internal predecessors, (69), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 105 [2024-11-28 02:55:03,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:03,874 INFO L225 Difference]: With dead ends: 932 [2024-11-28 02:55:03,874 INFO L226 Difference]: Without dead ends: 931 [2024-11-28 02:55:03,875 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:55:03,875 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 421 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:03,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 397 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:55:03,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-28 02:55:03,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 897. [2024-11-28 02:55:03,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 767 states have (on average 1.6792698826597132) internal successors, (1288), 825 states have internal predecessors, (1288), 69 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 02:55:03,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1426 transitions. [2024-11-28 02:55:03,945 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1426 transitions. Word has length 105 [2024-11-28 02:55:03,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:03,945 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1426 transitions. [2024-11-28 02:55:03,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.625) internal successors, (69), 9 states have internal predecessors, (69), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:55:03,946 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1426 transitions. [2024-11-28 02:55:03,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 02:55:03,946 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:03,946 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:55:03,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-28 02:55:04,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 02:55:04,151 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:04,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:04,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1059316743, now seen corresponding path program 1 times [2024-11-28 02:55:04,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:04,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372664494] [2024-11-28 02:55:04,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:04,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:04,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526480007] [2024-11-28 02:55:04,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:04,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:04,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:04,178 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:04,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 02:55:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:04,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:55:04,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 02:55:04,816 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:05,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:05,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372664494] [2024-11-28 02:55:05,040 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:05,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526480007] [2024-11-28 02:55:05,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526480007] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:05,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:05,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 02:55:05,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193593163] [2024-11-28 02:55:05,040 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:05,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:55:05,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:05,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:55:05,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:55:05,041 INFO L87 Difference]: Start difference. First operand 897 states and 1426 transitions. Second operand has 10 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:55:05,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:05,992 INFO L93 Difference]: Finished difference Result 932 states and 1442 transitions. [2024-11-28 02:55:05,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:55:05,993 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 106 [2024-11-28 02:55:05,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:05,996 INFO L225 Difference]: With dead ends: 932 [2024-11-28 02:55:05,997 INFO L226 Difference]: Without dead ends: 931 [2024-11-28 02:55:05,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:55:05,998 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 420 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:05,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 435 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 02:55:05,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-28 02:55:06,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 897. [2024-11-28 02:55:06,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 767 states have (on average 1.6766623207301175) internal successors, (1286), 825 states have internal predecessors, (1286), 69 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-28 02:55:06,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1424 transitions. [2024-11-28 02:55:06,057 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1424 transitions. Word has length 106 [2024-11-28 02:55:06,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:06,057 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1424 transitions. [2024-11-28 02:55:06,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.75) internal successors, (70), 9 states have internal predecessors, (70), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:55:06,058 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1424 transitions. [2024-11-28 02:55:06,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-28 02:55:06,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:06,058 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:06,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-28 02:55:06,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 02:55:06,259 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:06,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:06,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1520919254, now seen corresponding path program 1 times [2024-11-28 02:55:06,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:06,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227664619] [2024-11-28 02:55:06,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:06,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:06,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:06,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99652838] [2024-11-28 02:55:06,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:06,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:06,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:06,289 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:06,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 02:55:06,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:06,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:55:06,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:06,764 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 02:55:06,764 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:06,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:06,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227664619] [2024-11-28 02:55:06,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:06,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99652838] [2024-11-28 02:55:06,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99652838] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:06,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:06,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 02:55:06,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973554966] [2024-11-28 02:55:06,852 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:06,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:55:06,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:06,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:55:06,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:55:06,854 INFO L87 Difference]: Start difference. First operand 897 states and 1424 transitions. Second operand has 8 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 02:55:07,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:07,450 INFO L93 Difference]: Finished difference Result 1038 states and 1626 transitions. [2024-11-28 02:55:07,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:55:07,450 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 107 [2024-11-28 02:55:07,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:07,455 INFO L225 Difference]: With dead ends: 1038 [2024-11-28 02:55:07,455 INFO L226 Difference]: Without dead ends: 1036 [2024-11-28 02:55:07,455 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:55:07,457 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 409 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:07,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [418 Valid, 388 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:55:07,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-11-28 02:55:07,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 997. [2024-11-28 02:55:07,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 858 states have (on average 1.6923076923076923) internal successors, (1452), 916 states have internal predecessors, (1452), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 02:55:07,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1608 transitions. [2024-11-28 02:55:07,533 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1608 transitions. Word has length 107 [2024-11-28 02:55:07,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:07,534 INFO L471 AbstractCegarLoop]: Abstraction has 997 states and 1608 transitions. [2024-11-28 02:55:07,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.833333333333334) internal successors, (71), 7 states have internal predecessors, (71), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 02:55:07,535 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1608 transitions. [2024-11-28 02:55:07,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-28 02:55:07,536 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:07,536 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:07,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-28 02:55:07,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:07,737 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:07,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:07,737 INFO L85 PathProgramCache]: Analyzing trace with hash 96143465, now seen corresponding path program 1 times [2024-11-28 02:55:07,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:07,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653986432] [2024-11-28 02:55:07,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:07,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:07,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [977949970] [2024-11-28 02:55:07,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:07,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:07,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:07,759 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:07,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 02:55:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:07,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 02:55:07,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:08,272 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 02:55:08,272 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:08,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:08,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653986432] [2024-11-28 02:55:08,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:08,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977949970] [2024-11-28 02:55:08,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977949970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:08,533 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:08,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 02:55:08,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586038631] [2024-11-28 02:55:08,533 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:08,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:55:08,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:08,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:55:08,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:55:08,535 INFO L87 Difference]: Start difference. First operand 997 states and 1608 transitions. Second operand has 8 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 02:55:09,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:09,071 INFO L93 Difference]: Finished difference Result 1038 states and 1621 transitions. [2024-11-28 02:55:09,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:55:09,073 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 108 [2024-11-28 02:55:09,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:09,077 INFO L225 Difference]: With dead ends: 1038 [2024-11-28 02:55:09,077 INFO L226 Difference]: Without dead ends: 1036 [2024-11-28 02:55:09,077 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:55:09,078 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 361 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:09,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 510 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:55:09,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2024-11-28 02:55:09,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 998. [2024-11-28 02:55:09,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 859 states have (on average 1.6868451688009314) internal successors, (1449), 917 states have internal predecessors, (1449), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 02:55:09,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1605 transitions. [2024-11-28 02:55:09,153 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1605 transitions. Word has length 108 [2024-11-28 02:55:09,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:09,154 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1605 transitions. [2024-11-28 02:55:09,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.0) internal successors, (72), 7 states have internal predecessors, (72), 4 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2024-11-28 02:55:09,154 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1605 transitions. [2024-11-28 02:55:09,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 02:55:09,155 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:09,155 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:09,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-28 02:55:09,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:09,356 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:09,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:09,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1314519796, now seen corresponding path program 1 times [2024-11-28 02:55:09,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:09,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242875893] [2024-11-28 02:55:09,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:09,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:09,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1145838219] [2024-11-28 02:55:09,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:09,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:09,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:09,380 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:09,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 02:55:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:09,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:55:09,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:10,173 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-28 02:55:10,173 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:10,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:10,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242875893] [2024-11-28 02:55:10,277 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:10,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145838219] [2024-11-28 02:55:10,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145838219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:10,277 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:10,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 02:55:10,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610853045] [2024-11-28 02:55:10,277 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:10,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 02:55:10,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:10,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 02:55:10,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:55:10,280 INFO L87 Difference]: Start difference. First operand 998 states and 1605 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:55:11,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:11,488 INFO L93 Difference]: Finished difference Result 1025 states and 1621 transitions. [2024-11-28 02:55:11,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:55:11,488 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 109 [2024-11-28 02:55:11,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:11,493 INFO L225 Difference]: With dead ends: 1025 [2024-11-28 02:55:11,493 INFO L226 Difference]: Without dead ends: 1024 [2024-11-28 02:55:11,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:55:11,495 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 399 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:11,495 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 437 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:55:11,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024 states. [2024-11-28 02:55:11,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024 to 998. [2024-11-28 02:55:11,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 859 states have (on average 1.6845168800931316) internal successors, (1447), 917 states have internal predecessors, (1447), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 02:55:11,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1603 transitions. [2024-11-28 02:55:11,555 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1603 transitions. Word has length 109 [2024-11-28 02:55:11,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:11,556 INFO L471 AbstractCegarLoop]: Abstraction has 998 states and 1603 transitions. [2024-11-28 02:55:11,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-28 02:55:11,556 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1603 transitions. [2024-11-28 02:55:11,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 02:55:11,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:11,557 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:11,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-28 02:55:11,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-28 02:55:11,762 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:11,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:11,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2095407925, now seen corresponding path program 1 times [2024-11-28 02:55:11,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:11,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81010734] [2024-11-28 02:55:11,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:11,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:11,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293102950] [2024-11-28 02:55:11,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:11,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:11,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:11,786 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:11,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 02:55:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:11,877 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 02:55:11,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:12,308 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-28 02:55:12,308 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:12,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:12,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81010734] [2024-11-28 02:55:12,371 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:12,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293102950] [2024-11-28 02:55:12,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293102950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:12,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:12,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 02:55:12,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492540481] [2024-11-28 02:55:12,372 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:12,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:55:12,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:12,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:55:12,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:55:12,373 INFO L87 Difference]: Start difference. First operand 998 states and 1603 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 02:55:12,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:12,965 INFO L93 Difference]: Finished difference Result 1036 states and 1614 transitions. [2024-11-28 02:55:12,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:55:12,966 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 110 [2024-11-28 02:55:12,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:12,970 INFO L225 Difference]: With dead ends: 1036 [2024-11-28 02:55:12,970 INFO L226 Difference]: Without dead ends: 1031 [2024-11-28 02:55:12,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:55:12,971 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 257 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:12,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 253 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 02:55:12,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-11-28 02:55:13,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1001. [2024-11-28 02:55:13,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 862 states have (on average 1.6763341067285382) internal successors, (1445), 920 states have internal predecessors, (1445), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 02:55:13,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1601 transitions. [2024-11-28 02:55:13,049 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1601 transitions. Word has length 110 [2024-11-28 02:55:13,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:13,049 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1601 transitions. [2024-11-28 02:55:13,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 02:55:13,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1601 transitions. [2024-11-28 02:55:13,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 02:55:13,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:13,050 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:55:13,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:13,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:13,251 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:13,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:13,251 INFO L85 PathProgramCache]: Analyzing trace with hash 712569473, now seen corresponding path program 1 times [2024-11-28 02:55:13,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:13,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248109213] [2024-11-28 02:55:13,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:13,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:13,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1321799478] [2024-11-28 02:55:13,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:13,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:13,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:13,274 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:13,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 02:55:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:13,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:55:13,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-28 02:55:14,125 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:22,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:22,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248109213] [2024-11-28 02:55:22,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:22,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321799478] [2024-11-28 02:55:22,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321799478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:22,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:22,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 02:55:22,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464747036] [2024-11-28 02:55:22,443 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:22,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:55:22,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:22,444 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:55:22,444 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=97, Unknown=2, NotChecked=0, Total=132 [2024-11-28 02:55:22,444 INFO L87 Difference]: Start difference. First operand 1001 states and 1601 transitions. Second operand has 9 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 02:55:23,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:23,178 INFO L93 Difference]: Finished difference Result 1048 states and 1633 transitions. [2024-11-28 02:55:23,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:55:23,178 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 116 [2024-11-28 02:55:23,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:23,182 INFO L225 Difference]: With dead ends: 1048 [2024-11-28 02:55:23,182 INFO L226 Difference]: Without dead ends: 1045 [2024-11-28 02:55:23,183 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=33, Invalid=97, Unknown=2, NotChecked=0, Total=132 [2024-11-28 02:55:23,183 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 424 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:23,184 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 565 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:55:23,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-11-28 02:55:23,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1001. [2024-11-28 02:55:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 862 states have (on average 1.665893271461717) internal successors, (1436), 920 states have internal predecessors, (1436), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 02:55:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1592 transitions. [2024-11-28 02:55:23,269 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1592 transitions. Word has length 116 [2024-11-28 02:55:23,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:23,269 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1592 transitions. [2024-11-28 02:55:23,270 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 10.714285714285714) internal successors, (75), 8 states have internal predecessors, (75), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 02:55:23,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1592 transitions. [2024-11-28 02:55:23,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-28 02:55:23,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:23,271 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:55:23,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-28 02:55:23,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 02:55:23,472 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:23,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:23,473 INFO L85 PathProgramCache]: Analyzing trace with hash 614817275, now seen corresponding path program 1 times [2024-11-28 02:55:23,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:23,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145106355] [2024-11-28 02:55:23,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:23,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:23,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2074923863] [2024-11-28 02:55:23,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:23,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:23,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:23,501 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:23,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 02:55:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:23,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 02:55:23,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:24,420 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-28 02:55:24,421 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:37,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:37,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145106355] [2024-11-28 02:55:37,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:37,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074923863] [2024-11-28 02:55:37,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074923863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:37,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:37,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 02:55:37,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283595001] [2024-11-28 02:55:37,972 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:37,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 02:55:37,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:37,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 02:55:37,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=94, Unknown=3, NotChecked=0, Total=132 [2024-11-28 02:55:37,973 INFO L87 Difference]: Start difference. First operand 1001 states and 1592 transitions. Second operand has 9 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 02:55:38,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:38,623 INFO L93 Difference]: Finished difference Result 1048 states and 1624 transitions. [2024-11-28 02:55:38,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:55:38,624 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) Word has length 117 [2024-11-28 02:55:38,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:38,627 INFO L225 Difference]: With dead ends: 1048 [2024-11-28 02:55:38,627 INFO L226 Difference]: Without dead ends: 1045 [2024-11-28 02:55:38,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=45, Invalid=108, Unknown=3, NotChecked=0, Total=156 [2024-11-28 02:55:38,628 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 298 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:38,628 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 431 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:55:38,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-11-28 02:55:38,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1001. [2024-11-28 02:55:38,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 862 states have (on average 1.6554524361948957) internal successors, (1427), 920 states have internal predecessors, (1427), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 02:55:38,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1583 transitions. [2024-11-28 02:55:38,705 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1583 transitions. Word has length 117 [2024-11-28 02:55:38,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:38,705 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1583 transitions. [2024-11-28 02:55:38,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 02:55:38,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1583 transitions. [2024-11-28 02:55:38,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-28 02:55:38,706 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:38,706 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:55:38,718 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-28 02:55:38,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-28 02:55:38,907 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:38,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:38,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1879466435, now seen corresponding path program 1 times [2024-11-28 02:55:38,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:38,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468608648] [2024-11-28 02:55:38,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:38,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:38,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2133930355] [2024-11-28 02:55:38,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:38,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:38,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:38,933 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:38,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 02:55:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:39,024 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:55:39,026 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:39,773 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-28 02:55:39,773 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:52,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:52,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468608648] [2024-11-28 02:55:52,119 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:52,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133930355] [2024-11-28 02:55:52,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133930355] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:52,119 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:52,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 02:55:52,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617653767] [2024-11-28 02:55:52,120 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:52,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:55:52,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:52,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:55:52,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=168, Unknown=3, NotChecked=0, Total=210 [2024-11-28 02:55:52,121 INFO L87 Difference]: Start difference. First operand 1001 states and 1583 transitions. Second operand has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 02:55:53,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:53,666 INFO L93 Difference]: Finished difference Result 1033 states and 1613 transitions. [2024-11-28 02:55:53,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:55:53,666 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 118 [2024-11-28 02:55:53,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:53,671 INFO L225 Difference]: With dead ends: 1033 [2024-11-28 02:55:53,671 INFO L226 Difference]: Without dead ends: 1031 [2024-11-28 02:55:53,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=83, Invalid=334, Unknown=3, NotChecked=0, Total=420 [2024-11-28 02:55:53,672 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 593 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 1213 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:53,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 335 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1213 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 02:55:53,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-11-28 02:55:53,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1001. [2024-11-28 02:55:53,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 862 states have (on average 1.6508120649651972) internal successors, (1423), 920 states have internal predecessors, (1423), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 02:55:53,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1579 transitions. [2024-11-28 02:55:53,753 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1579 transitions. Word has length 118 [2024-11-28 02:55:53,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:53,753 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1579 transitions. [2024-11-28 02:55:53,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.555555555555555) internal successors, (77), 10 states have internal predecessors, (77), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 02:55:53,753 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1579 transitions. [2024-11-28 02:55:53,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 02:55:53,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:53,754 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:53,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:53,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-28 02:55:53,955 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:53,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:53,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1866082563, now seen corresponding path program 1 times [2024-11-28 02:55:53,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:53,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466303969] [2024-11-28 02:55:53,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:53,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:53,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1332903422] [2024-11-28 02:55:53,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:53,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:53,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:53,988 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:53,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 02:55:54,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:54,082 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:55:54,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:54,901 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-28 02:55:54,902 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:55,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:55,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466303969] [2024-11-28 02:55:55,584 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:55,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332903422] [2024-11-28 02:55:55,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332903422] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:55,584 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:55,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 02:55:55,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075821808] [2024-11-28 02:55:55,585 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:55,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:55:55,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:55,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:55:55,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:55:55,586 INFO L87 Difference]: Start difference. First operand 1001 states and 1579 transitions. Second operand has 11 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 02:55:56,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:56,820 INFO L93 Difference]: Finished difference Result 1033 states and 1609 transitions. [2024-11-28 02:55:56,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 02:55:56,821 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 119 [2024-11-28 02:55:56,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:56,825 INFO L225 Difference]: With dead ends: 1033 [2024-11-28 02:55:56,825 INFO L226 Difference]: Without dead ends: 1031 [2024-11-28 02:55:56,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:55:56,827 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 404 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:56,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 373 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:55:56,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-11-28 02:55:56,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1001. [2024-11-28 02:55:56,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 862 states have (on average 1.6461716937354989) internal successors, (1419), 920 states have internal predecessors, (1419), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 02:55:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1575 transitions. [2024-11-28 02:55:56,876 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1575 transitions. Word has length 119 [2024-11-28 02:55:56,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:56,877 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1575 transitions. [2024-11-28 02:55:56,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 02:55:56,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1575 transitions. [2024-11-28 02:55:56,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-28 02:55:56,878 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:56,878 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:56,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:57,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:57,078 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:57,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:57,079 INFO L85 PathProgramCache]: Analyzing trace with hash -2013984507, now seen corresponding path program 1 times [2024-11-28 02:55:57,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:57,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993668896] [2024-11-28 02:55:57,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:57,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:57,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [196200876] [2024-11-28 02:55:57,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:57,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:57,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:57,104 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:57,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 02:55:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:57,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 02:55:57,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:58,183 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 02:55:58,183 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:58,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:55:58,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993668896] [2024-11-28 02:55:58,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:55:58,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196200876] [2024-11-28 02:55:58,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196200876] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:55:58,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:55:58,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 02:55:58,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629310302] [2024-11-28 02:55:58,435 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:58,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:55:58,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:58,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:55:58,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:55:58,436 INFO L87 Difference]: Start difference. First operand 1001 states and 1575 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 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 02:55:59,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:59,623 INFO L93 Difference]: Finished difference Result 1022 states and 1591 transitions. [2024-11-28 02:55:59,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 02:55:59,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 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 120 [2024-11-28 02:55:59,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:59,629 INFO L225 Difference]: With dead ends: 1022 [2024-11-28 02:55:59,629 INFO L226 Difference]: Without dead ends: 1019 [2024-11-28 02:55:59,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:55:59,630 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 166 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:59,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 347 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:55:59,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2024-11-28 02:55:59,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1001. [2024-11-28 02:55:59,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 862 states have (on average 1.6392111368909512) internal successors, (1413), 920 states have internal predecessors, (1413), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 02:55:59,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1569 transitions. [2024-11-28 02:55:59,708 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1569 transitions. Word has length 120 [2024-11-28 02:55:59,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:59,709 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1569 transitions. [2024-11-28 02:55:59,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 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 02:55:59,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1569 transitions. [2024-11-28 02:55:59,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 02:55:59,710 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:59,710 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:59,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-28 02:55:59,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-28 02:55:59,911 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:55:59,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:59,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1990989823, now seen corresponding path program 1 times [2024-11-28 02:55:59,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:55:59,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843943344] [2024-11-28 02:55:59,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:59,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:55:59,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:55:59,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [736916742] [2024-11-28 02:55:59,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:59,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:55:59,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:59,935 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:55:59,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 02:56:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:00,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 02:56:00,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:00,778 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-28 02:56:00,779 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:56:01,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:01,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843943344] [2024-11-28 02:56:01,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:56:01,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736916742] [2024-11-28 02:56:01,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736916742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:01,103 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:56:01,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 02:56:01,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685750702] [2024-11-28 02:56:01,103 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:56:01,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:56:01,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:01,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:56:01,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:56:01,104 INFO L87 Difference]: Start difference. First operand 1001 states and 1569 transitions. Second operand has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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 02:56:01,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:01,759 INFO L93 Difference]: Finished difference Result 1022 states and 1585 transitions. [2024-11-28 02:56:01,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:56:01,759 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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 121 [2024-11-28 02:56:01,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:01,764 INFO L225 Difference]: With dead ends: 1022 [2024-11-28 02:56:01,764 INFO L226 Difference]: Without dead ends: 1021 [2024-11-28 02:56:01,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:56:01,765 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 283 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:01,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 272 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 02:56:01,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2024-11-28 02:56:01,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1001. [2024-11-28 02:56:01,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 862 states have (on average 1.636890951276102) internal successors, (1411), 920 states have internal predecessors, (1411), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 02:56:01,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1567 transitions. [2024-11-28 02:56:01,838 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1567 transitions. Word has length 121 [2024-11-28 02:56:01,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:01,839 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1567 transitions. [2024-11-28 02:56:01,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.0) internal successors, (77), 8 states have internal predecessors, (77), 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 02:56:01,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1567 transitions. [2024-11-28 02:56:01,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 02:56:01,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:01,840 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:01,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-11-28 02:56:02,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-28 02:56:02,041 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:56:02,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:02,042 INFO L85 PathProgramCache]: Analyzing trace with hash -839915458, now seen corresponding path program 1 times [2024-11-28 02:56:02,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:02,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491903197] [2024-11-28 02:56:02,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:02,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:56:02,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565467806] [2024-11-28 02:56:02,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:02,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:02,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:02,067 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:02,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 02:56:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:02,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:56:02,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 02:56:03,759 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:56:12,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:12,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491903197] [2024-11-28 02:56:12,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:56:12,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565467806] [2024-11-28 02:56:12,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565467806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:12,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:56:12,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 02:56:12,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534020692] [2024-11-28 02:56:12,086 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:56:12,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:56:12,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:12,086 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:56:12,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=169, Unknown=2, NotChecked=0, Total=210 [2024-11-28 02:56:12,087 INFO L87 Difference]: Start difference. First operand 1001 states and 1567 transitions. Second operand has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 02:56:15,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:56:15,123 INFO L93 Difference]: Finished difference Result 1020 states and 1583 transitions. [2024-11-28 02:56:15,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:56:15,124 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 127 [2024-11-28 02:56:15,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:56:15,128 INFO L225 Difference]: With dead ends: 1020 [2024-11-28 02:56:15,128 INFO L226 Difference]: Without dead ends: 1019 [2024-11-28 02:56:15,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=77, Invalid=301, Unknown=2, NotChecked=0, Total=380 [2024-11-28 02:56:15,129 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 465 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:56:15,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 623 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 02:56:15,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2024-11-28 02:56:15,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1001. [2024-11-28 02:56:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 862 states have (on average 1.634570765661253) internal successors, (1409), 920 states have internal predecessors, (1409), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 02:56:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1565 transitions. [2024-11-28 02:56:15,201 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1565 transitions. Word has length 127 [2024-11-28 02:56:15,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:56:15,201 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1565 transitions. [2024-11-28 02:56:15,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 02:56:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1565 transitions. [2024-11-28 02:56:15,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 02:56:15,203 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:56:15,203 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:56:15,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-28 02:56:15,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:15,404 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 02:56:15,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:56:15,404 INFO L85 PathProgramCache]: Analyzing trace with hash -267575317, now seen corresponding path program 1 times [2024-11-28 02:56:15,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:56:15,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743481193] [2024-11-28 02:56:15,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:15,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:56:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 02:56:15,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [231267499] [2024-11-28 02:56:15,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:56:15,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:56:15,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:56:15,427 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:56:15,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 02:56:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:56:15,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 02:56:15,542 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:56:25,430 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 02:56:25,430 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:56:38,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:56:38,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743481193] [2024-11-28 02:56:38,025 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 02:56:38,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231267499] [2024-11-28 02:56:38,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231267499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:56:38,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:56:38,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 02:56:38,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893861579] [2024-11-28 02:56:38,026 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 02:56:38,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:56:38,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:56:38,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:56:38,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=191, Unknown=6, NotChecked=0, Total=240 [2024-11-28 02:56:38,027 INFO L87 Difference]: Start difference. First operand 1001 states and 1565 transitions. Second operand has 12 states, 10 states have (on average 8.2) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 02:56:40,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:44,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:46,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:52,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:54,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:56:57,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:01,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:05,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:09,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:13,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:17,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:20,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:24,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:28,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:32,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:36,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:40,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:43,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:47,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:51,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:54,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:57:58,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:02,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:05,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:08,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:11,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:15,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:19,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:23,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:27,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:30,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:34,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:38,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:42,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:46,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:50,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:54,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:58:58,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:02,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:06,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:10,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:14,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:17,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:20,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:24,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:26,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.49s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:29,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:31,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:35,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:38,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:42,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:46,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:50,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:54,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 02:59:57,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:00,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:02,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:05,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:07,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:11,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:15,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:18,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:22,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:26,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:29,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:33,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:37,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:39,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:42,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.50s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:46,372 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:50,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:52,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:55,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:00:59,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:01,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:04,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:07,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:10,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:14,434 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:18,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:22,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:26,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:29,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.85s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:33,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:37,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:40,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:01:41,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:41,332 INFO L93 Difference]: Finished difference Result 1020 states and 1581 transitions. [2024-11-28 03:01:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:01:41,333 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.2) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 128 [2024-11-28 03:01:41,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:41,337 INFO L225 Difference]: With dead ends: 1020 [2024-11-28 03:01:41,337 INFO L226 Difference]: Without dead ends: 1019 [2024-11-28 03:01:41,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=98, Invalid=358, Unknown=6, NotChecked=0, Total=462 [2024-11-28 03:01:41,339 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 707 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 54 mSolverCounterUnsat, 86 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 299.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 1389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 86 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 299.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:41,339 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 450 Invalid, 1389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1249 Invalid, 86 Unknown, 0 Unchecked, 299.5s Time] [2024-11-28 03:01:41,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2024-11-28 03:01:41,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1001. [2024-11-28 03:01:41,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 862 states have (on average 1.6322505800464038) internal successors, (1407), 920 states have internal predecessors, (1407), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:01:41,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1563 transitions. [2024-11-28 03:01:41,442 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1563 transitions. Word has length 128 [2024-11-28 03:01:41,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:41,442 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1563 transitions. [2024-11-28 03:01:41,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.2) internal successors, (82), 11 states have internal predecessors, (82), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:01:41,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1563 transitions. [2024-11-28 03:01:41,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 03:01:41,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:41,444 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:41,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-11-28 03:01:41,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:01:41,648 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:01:41,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:41,648 INFO L85 PathProgramCache]: Analyzing trace with hash 123138946, now seen corresponding path program 1 times [2024-11-28 03:01:41,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:41,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285016978] [2024-11-28 03:01:41,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:41,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:01:41,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365390831] [2024-11-28 03:01:41,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:41,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:01:41,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:01:41,668 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:01:41,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-28 03:01:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:41,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-28 03:01:41,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:01:44,509 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 9 proven. 43 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 03:01:44,509 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:01:45,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:45,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285016978] [2024-11-28 03:01:45,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:01:45,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365390831] [2024-11-28 03:01:45,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365390831] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:01:45,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:01:45,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 03:01:45,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156359016] [2024-11-28 03:01:45,842 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:01:45,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 03:01:45,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:45,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 03:01:45,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:01:45,843 INFO L87 Difference]: Start difference. First operand 1001 states and 1563 transitions. Second operand has 16 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-28 03:01:49,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:49,085 INFO L93 Difference]: Finished difference Result 1025 states and 1581 transitions. [2024-11-28 03:01:49,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:01:49,085 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 131 [2024-11-28 03:01:49,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:49,089 INFO L225 Difference]: With dead ends: 1025 [2024-11-28 03:01:49,089 INFO L226 Difference]: Without dead ends: 1021 [2024-11-28 03:01:49,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2024-11-28 03:01:49,091 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 340 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:49,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 495 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1853 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-28 03:01:49,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1021 states. [2024-11-28 03:01:49,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1021 to 1001. [2024-11-28 03:01:49,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 862 states have (on average 1.622969837587007) internal successors, (1399), 920 states have internal predecessors, (1399), 78 states have call successors, (78), 2 states have call predecessors, (78), 2 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-28 03:01:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1555 transitions. [2024-11-28 03:01:49,190 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1555 transitions. Word has length 131 [2024-11-28 03:01:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:49,191 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1555 transitions. [2024-11-28 03:01:49,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.285714285714286) internal successors, (88), 15 states have internal predecessors, (88), 6 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-28 03:01:49,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1555 transitions. [2024-11-28 03:01:49,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-28 03:01:49,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:49,192 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:49,205 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-28 03:01:49,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-28 03:01:49,397 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:01:49,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:49,398 INFO L85 PathProgramCache]: Analyzing trace with hash -581045144, now seen corresponding path program 1 times [2024-11-28 03:01:49,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:49,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144063777] [2024-11-28 03:01:49,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:49,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:01:49,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1079649397] [2024-11-28 03:01:49,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:49,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:01:49,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:01:49,428 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:01:49,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 03:01:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:49,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:01:49,532 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:01:50,046 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 03:01:50,047 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:01:50,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:50,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144063777] [2024-11-28 03:01:50,337 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:01:50,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079649397] [2024-11-28 03:01:50,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079649397] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:01:50,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:01:50,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 03:01:50,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490647866] [2024-11-28 03:01:50,337 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:01:50,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:01:50,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:50,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:01:50,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:01:50,338 INFO L87 Difference]: Start difference. First operand 1001 states and 1555 transitions. Second operand has 9 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:01:51,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:51,575 INFO L93 Difference]: Finished difference Result 1190 states and 1832 transitions. [2024-11-28 03:01:51,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:01:51,576 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 137 [2024-11-28 03:01:51,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:51,578 INFO L225 Difference]: With dead ends: 1190 [2024-11-28 03:01:51,578 INFO L226 Difference]: Without dead ends: 1189 [2024-11-28 03:01:51,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:01:51,579 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 410 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:51,580 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 529 Invalid, 983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 03:01:51,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1189 states. [2024-11-28 03:01:51,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1189 to 1103. [2024-11-28 03:01:51,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 956 states have (on average 1.637029288702929) internal successors, (1565), 1014 states have internal predecessors, (1565), 86 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-28 03:01:51,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1737 transitions. [2024-11-28 03:01:51,688 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1737 transitions. Word has length 137 [2024-11-28 03:01:51,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:51,688 INFO L471 AbstractCegarLoop]: Abstraction has 1103 states and 1737 transitions. [2024-11-28 03:01:51,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.375) internal successors, (91), 8 states have internal predecessors, (91), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:01:51,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1737 transitions. [2024-11-28 03:01:51,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-28 03:01:51,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:51,690 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:51,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-28 03:01:51,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2024-11-28 03:01:51,894 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:01:51,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:51,895 INFO L85 PathProgramCache]: Analyzing trace with hash -832530155, now seen corresponding path program 1 times [2024-11-28 03:01:51,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:51,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326405735] [2024-11-28 03:01:51,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:51,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:01:51,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [729179940] [2024-11-28 03:01:51,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:51,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:01:51,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:01:51,920 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:01:51,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-28 03:01:52,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:52,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:01:52,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:01:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 03:01:52,623 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:01:53,823 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 03:01:53,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:01:53,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326405735] [2024-11-28 03:01:53,823 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:01:53,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729179940] [2024-11-28 03:01:53,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729179940] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:01:53,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:01:53,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-28 03:01:53,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583139925] [2024-11-28 03:01:53,824 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:01:53,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:01:53,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:01:53,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:01:53,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:01:53,825 INFO L87 Difference]: Start difference. First operand 1103 states and 1737 transitions. Second operand has 15 states, 12 states have (on average 14.666666666666666) internal successors, (176), 13 states have internal predecessors, (176), 10 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) [2024-11-28 03:01:57,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:01:57,710 INFO L93 Difference]: Finished difference Result 1836 states and 2847 transitions. [2024-11-28 03:01:57,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 03:01:57,711 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 14.666666666666666) internal successors, (176), 13 states have internal predecessors, (176), 10 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) Word has length 138 [2024-11-28 03:01:57,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:01:57,715 INFO L225 Difference]: With dead ends: 1836 [2024-11-28 03:01:57,715 INFO L226 Difference]: Without dead ends: 1835 [2024-11-28 03:01:57,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=246, Invalid=876, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 03:01:57,716 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 1500 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 1839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:01:57,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 770 Invalid, 1839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 03:01:57,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2024-11-28 03:01:57,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1137. [2024-11-28 03:01:57,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 987 states have (on average 1.636271529888551) internal successors, (1615), 1045 states have internal predecessors, (1615), 89 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 03:01:57,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1793 transitions. [2024-11-28 03:01:57,784 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1793 transitions. Word has length 138 [2024-11-28 03:01:57,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:01:57,784 INFO L471 AbstractCegarLoop]: Abstraction has 1137 states and 1793 transitions. [2024-11-28 03:01:57,784 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 14.666666666666666) internal successors, (176), 13 states have internal predecessors, (176), 10 states have call successors, (22), 1 states have call predecessors, (22), 2 states have return successors, (22), 8 states have call predecessors, (22), 10 states have call successors, (22) [2024-11-28 03:01:57,784 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1793 transitions. [2024-11-28 03:01:57,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-28 03:01:57,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:01:57,785 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:01:57,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2024-11-28 03:01:57,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable54 [2024-11-28 03:01:57,986 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:01:57,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:01:57,986 INFO L85 PathProgramCache]: Analyzing trace with hash -38630902, now seen corresponding path program 1 times [2024-11-28 03:01:57,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:01:57,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661148538] [2024-11-28 03:01:57,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:57,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:01:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:01:58,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [129292317] [2024-11-28 03:01:58,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:01:58,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:01:58,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:01:58,024 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:01:58,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-28 03:01:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:01:58,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 03:01:58,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:01,856 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 03:02:01,856 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:15,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:15,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661148538] [2024-11-28 03:02:15,699 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:15,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129292317] [2024-11-28 03:02:15,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129292317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:15,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:15,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 03:02:15,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014119938] [2024-11-28 03:02:15,699 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:15,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:02:15,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:15,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:02:15,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=312, Unknown=2, NotChecked=0, Total=380 [2024-11-28 03:02:15,701 INFO L87 Difference]: Start difference. First operand 1137 states and 1793 transitions. Second operand has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-28 03:02:18,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:18,324 INFO L93 Difference]: Finished difference Result 1145 states and 1795 transitions. [2024-11-28 03:02:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:02:18,325 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) Word has length 139 [2024-11-28 03:02:18,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:18,327 INFO L225 Difference]: With dead ends: 1145 [2024-11-28 03:02:18,327 INFO L226 Difference]: Without dead ends: 1142 [2024-11-28 03:02:18,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=87, Invalid=373, Unknown=2, NotChecked=0, Total=462 [2024-11-28 03:02:18,328 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 402 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 1689 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:18,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 347 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1689 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 03:02:18,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2024-11-28 03:02:18,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 1137. [2024-11-28 03:02:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 987 states have (on average 1.630192502532928) internal successors, (1609), 1045 states have internal predecessors, (1609), 89 states have call successors, (89), 2 states have call predecessors, (89), 2 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-28 03:02:18,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1787 transitions. [2024-11-28 03:02:18,416 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1787 transitions. Word has length 139 [2024-11-28 03:02:18,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:18,417 INFO L471 AbstractCegarLoop]: Abstraction has 1137 states and 1787 transitions. [2024-11-28 03:02:18,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 6 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 6 states have call successors, (11) [2024-11-28 03:02:18,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1787 transitions. [2024-11-28 03:02:18,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 03:02:18,418 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:18,418 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:18,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:18,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:18,623 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:02:18,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:18,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1197557833, now seen corresponding path program 1 times [2024-11-28 03:02:18,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:18,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108277783] [2024-11-28 03:02:18,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:18,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:18,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [447301870] [2024-11-28 03:02:18,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:18,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:18,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:18,652 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:18,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-28 03:02:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:18,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:02:18,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:19,921 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 03:02:19,922 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:24,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:24,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108277783] [2024-11-28 03:02:24,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:24,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447301870] [2024-11-28 03:02:24,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447301870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:24,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:24,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 03:02:24,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717876938] [2024-11-28 03:02:24,396 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:24,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:02:24,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:24,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:02:24,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2024-11-28 03:02:24,397 INFO L87 Difference]: Start difference. First operand 1137 states and 1787 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:02:27,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:27,526 INFO L93 Difference]: Finished difference Result 1209 states and 1879 transitions. [2024-11-28 03:02:27,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:02:27,526 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 140 [2024-11-28 03:02:27,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:27,529 INFO L225 Difference]: With dead ends: 1209 [2024-11-28 03:02:27,529 INFO L226 Difference]: Without dead ends: 1207 [2024-11-28 03:02:27,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=99, Invalid=242, Unknown=1, NotChecked=0, Total=342 [2024-11-28 03:02:27,529 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 343 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 1245 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:27,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 446 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1245 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 03:02:27,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-11-28 03:02:27,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1186. [2024-11-28 03:02:27,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 1032 states have (on average 1.6327519379844961) internal successors, (1685), 1090 states have internal predecessors, (1685), 93 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 03:02:27,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1871 transitions. [2024-11-28 03:02:27,602 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1871 transitions. Word has length 140 [2024-11-28 03:02:27,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:27,602 INFO L471 AbstractCegarLoop]: Abstraction has 1186 states and 1871 transitions. [2024-11-28 03:02:27,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:02:27,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1871 transitions. [2024-11-28 03:02:27,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-28 03:02:27,603 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:27,603 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:27,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-28 03:02:27,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:27,804 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:02:27,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:27,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1455133947, now seen corresponding path program 1 times [2024-11-28 03:02:27,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:27,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017973528] [2024-11-28 03:02:27,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:27,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:27,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1851347463] [2024-11-28 03:02:27,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:27,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:27,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:27,824 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:27,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-28 03:02:27,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:27,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:02:27,923 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:29,578 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 18 proven. 47 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-28 03:02:29,579 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:30,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:30,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017973528] [2024-11-28 03:02:30,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:30,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851347463] [2024-11-28 03:02:30,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851347463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:30,109 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:30,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 03:02:30,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783114765] [2024-11-28 03:02:30,109 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:30,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 03:02:30,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:30,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 03:02:30,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:02:30,111 INFO L87 Difference]: Start difference. First operand 1186 states and 1871 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:02:37,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:37,409 INFO L93 Difference]: Finished difference Result 1212 states and 1875 transitions. [2024-11-28 03:02:37,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 03:02:37,409 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 144 [2024-11-28 03:02:37,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:37,412 INFO L225 Difference]: With dead ends: 1212 [2024-11-28 03:02:37,412 INFO L226 Difference]: Without dead ends: 1208 [2024-11-28 03:02:37,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=137, Invalid=463, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:02:37,413 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 276 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:37,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 531 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-28 03:02:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2024-11-28 03:02:37,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1186. [2024-11-28 03:02:37,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 1032 states have (on average 1.621124031007752) internal successors, (1673), 1090 states have internal predecessors, (1673), 93 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 03:02:37,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1859 transitions. [2024-11-28 03:02:37,484 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1859 transitions. Word has length 144 [2024-11-28 03:02:37,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:37,484 INFO L471 AbstractCegarLoop]: Abstraction has 1186 states and 1859 transitions. [2024-11-28 03:02:37,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 5 states have call successors, (11), 1 states have call predecessors, (11), 3 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-28 03:02:37,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1859 transitions. [2024-11-28 03:02:37,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-28 03:02:37,485 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:37,486 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:37,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:37,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-28 03:02:37,690 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:02:37,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:37,690 INFO L85 PathProgramCache]: Analyzing trace with hash 218004595, now seen corresponding path program 1 times [2024-11-28 03:02:37,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:37,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5149180] [2024-11-28 03:02:37,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:37,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:37,885 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:02:37,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:37,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5149180] [2024-11-28 03:02:37,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5149180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:37,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352706174] [2024-11-28 03:02:37,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:37,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:37,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:37,888 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:37,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-28 03:02:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:37,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:02:37,991 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:38,645 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:02:38,645 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:39,030 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:02:39,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352706174] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:02:39,030 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:02:39,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-11-28 03:02:39,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679352431] [2024-11-28 03:02:39,030 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:39,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 03:02:39,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:39,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 03:02:39,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:02:39,031 INFO L87 Difference]: Start difference. First operand 1186 states and 1859 transitions. Second operand has 14 states, 13 states have (on average 20.615384615384617) internal successors, (268), 14 states have internal predecessors, (268), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-11-28 03:02:40,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:40,849 INFO L93 Difference]: Finished difference Result 1278 states and 1963 transitions. [2024-11-28 03:02:40,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:02:40,850 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 20.615384615384617) internal successors, (268), 14 states have internal predecessors, (268), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 148 [2024-11-28 03:02:40,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:40,852 INFO L225 Difference]: With dead ends: 1278 [2024-11-28 03:02:40,852 INFO L226 Difference]: Without dead ends: 1277 [2024-11-28 03:02:40,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2024-11-28 03:02:40,853 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 735 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:40,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 489 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:02:40,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2024-11-28 03:02:40,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1274. [2024-11-28 03:02:40,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1112 states have (on average 1.5800359712230216) internal successors, (1757), 1170 states have internal predecessors, (1757), 101 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-28 03:02:40,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1959 transitions. [2024-11-28 03:02:40,928 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1959 transitions. Word has length 148 [2024-11-28 03:02:40,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:40,928 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 1959 transitions. [2024-11-28 03:02:40,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 20.615384615384617) internal successors, (268), 14 states have internal predecessors, (268), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-11-28 03:02:40,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1959 transitions. [2024-11-28 03:02:40,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 03:02:40,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:40,930 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:40,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:41,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-28 03:02:41,134 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:02:41,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:41,134 INFO L85 PathProgramCache]: Analyzing trace with hash -539849099, now seen corresponding path program 1 times [2024-11-28 03:02:41,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:41,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182750328] [2024-11-28 03:02:41,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:41,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:41,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:41,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60582467] [2024-11-28 03:02:41,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:41,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:41,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:41,155 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:41,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-28 03:02:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:41,233 INFO L256 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:02:41,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:02:41,830 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:02:41,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:41,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182750328] [2024-11-28 03:02:41,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:41,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60582467] [2024-11-28 03:02:41,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60582467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:41,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:41,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:02:41,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825157558] [2024-11-28 03:02:41,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:41,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:02:41,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:41,832 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:02:41,832 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:02:41,832 INFO L87 Difference]: Start difference. First operand 1274 states and 1959 transitions. Second operand has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:02:42,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:42,322 INFO L93 Difference]: Finished difference Result 1278 states and 1959 transitions. [2024-11-28 03:02:42,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:02:42,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 152 [2024-11-28 03:02:42,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:42,327 INFO L225 Difference]: With dead ends: 1278 [2024-11-28 03:02:42,327 INFO L226 Difference]: Without dead ends: 1277 [2024-11-28 03:02:42,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:02:42,328 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 29 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:42,328 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 273 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:02:42,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2024-11-28 03:02:42,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1274. [2024-11-28 03:02:42,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1112 states have (on average 1.579136690647482) internal successors, (1756), 1170 states have internal predecessors, (1756), 101 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-28 03:02:42,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1958 transitions. [2024-11-28 03:02:42,459 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1958 transitions. Word has length 152 [2024-11-28 03:02:42,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:42,459 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 1958 transitions. [2024-11-28 03:02:42,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.5) internal successors, (98), 5 states have internal predecessors, (98), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:02:42,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1958 transitions. [2024-11-28 03:02:42,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-28 03:02:42,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:42,461 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:42,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-11-28 03:02:42,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-28 03:02:42,662 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:02:42,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:42,663 INFO L85 PathProgramCache]: Analyzing trace with hash 939320855, now seen corresponding path program 2 times [2024-11-28 03:02:42,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:42,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143005966] [2024-11-28 03:02:42,663 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:02:42,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:42,701 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:02:42,702 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 03:02:42,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157825790] [2024-11-28 03:02:42,706 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 03:02:42,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:42,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:42,731 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:42,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-28 03:02:42,946 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 03:02:42,946 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 03:02:42,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:02:42,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:44,273 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 12 proven. 58 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2024-11-28 03:02:44,273 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:45,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:45,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143005966] [2024-11-28 03:02:45,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:45,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157825790] [2024-11-28 03:02:45,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157825790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:45,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:45,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:02:45,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117386397] [2024-11-28 03:02:45,221 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:45,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:02:45,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:45,221 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:02:45,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:02:45,222 INFO L87 Difference]: Start difference. First operand 1274 states and 1958 transitions. Second operand has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 03:02:46,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:46,740 INFO L93 Difference]: Finished difference Result 1278 states and 1960 transitions. [2024-11-28 03:02:46,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:02:46,740 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 152 [2024-11-28 03:02:46,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:46,743 INFO L225 Difference]: With dead ends: 1278 [2024-11-28 03:02:46,744 INFO L226 Difference]: Without dead ends: 1277 [2024-11-28 03:02:46,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:02:46,745 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 387 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:46,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 582 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:02:46,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2024-11-28 03:02:46,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1274. [2024-11-28 03:02:46,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1112 states have (on average 1.5782374100719425) internal successors, (1755), 1170 states have internal predecessors, (1755), 101 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-28 03:02:46,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1957 transitions. [2024-11-28 03:02:46,870 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1957 transitions. Word has length 152 [2024-11-28 03:02:46,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:46,870 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 1957 transitions. [2024-11-28 03:02:46,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 03:02:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1957 transitions. [2024-11-28 03:02:46,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-28 03:02:46,872 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:46,872 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:46,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2024-11-28 03:02:47,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2024-11-28 03:02:47,073 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:02:47,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:47,074 INFO L85 PathProgramCache]: Analyzing trace with hash 444547286, now seen corresponding path program 1 times [2024-11-28 03:02:47,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:47,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487350012] [2024-11-28 03:02:47,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:47,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:47,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:47,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [584386500] [2024-11-28 03:02:47,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:47,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:47,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:47,109 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:47,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-28 03:02:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:47,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:02:47,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:47,696 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:02:47,696 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:48,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:48,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487350012] [2024-11-28 03:02:48,239 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:48,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584386500] [2024-11-28 03:02:48,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584386500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:48,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:48,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 03:02:48,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100771892] [2024-11-28 03:02:48,239 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:48,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:02:48,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:48,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:02:48,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:02:48,240 INFO L87 Difference]: Start difference. First operand 1274 states and 1957 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:02:48,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:48,676 INFO L93 Difference]: Finished difference Result 1287 states and 1968 transitions. [2024-11-28 03:02:48,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:02:48,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 153 [2024-11-28 03:02:48,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:48,681 INFO L225 Difference]: With dead ends: 1287 [2024-11-28 03:02:48,681 INFO L226 Difference]: Without dead ends: 1286 [2024-11-28 03:02:48,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:02:48,682 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 77 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:48,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 265 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:02:48,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2024-11-28 03:02:48,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1281. [2024-11-28 03:02:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1119 states have (on average 1.574620196604111) internal successors, (1762), 1177 states have internal predecessors, (1762), 101 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-28 03:02:48,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1964 transitions. [2024-11-28 03:02:48,789 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1964 transitions. Word has length 153 [2024-11-28 03:02:48,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:48,789 INFO L471 AbstractCegarLoop]: Abstraction has 1281 states and 1964 transitions. [2024-11-28 03:02:48,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:02:48,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1964 transitions. [2024-11-28 03:02:48,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-28 03:02:48,791 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:48,791 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:48,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2024-11-28 03:02:48,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:48,991 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:02:48,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:48,992 INFO L85 PathProgramCache]: Analyzing trace with hash -357922650, now seen corresponding path program 1 times [2024-11-28 03:02:48,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:48,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973880203] [2024-11-28 03:02:48,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:48,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:49,178 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:02:49,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:49,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973880203] [2024-11-28 03:02:49,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973880203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:49,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142434809] [2024-11-28 03:02:49,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:49,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:49,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:49,181 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:49,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2024-11-28 03:02:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:49,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 03:02:49,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:50,000 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:02:50,000 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:02:50,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142434809] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:02:50,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:02:50,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2024-11-28 03:02:50,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818637432] [2024-11-28 03:02:50,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:50,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 03:02:50,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:50,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 03:02:50,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:02:50,383 INFO L87 Difference]: Start difference. First operand 1281 states and 1964 transitions. Second operand has 17 states, 16 states have (on average 17.875) internal successors, (286), 17 states have internal predecessors, (286), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-11-28 03:02:55,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:55,016 INFO L93 Difference]: Finished difference Result 1941 states and 2646 transitions. [2024-11-28 03:02:55,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-28 03:02:55,017 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 17.875) internal successors, (286), 17 states have internal predecessors, (286), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) Word has length 154 [2024-11-28 03:02:55,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:55,022 INFO L225 Difference]: With dead ends: 1941 [2024-11-28 03:02:55,022 INFO L226 Difference]: Without dead ends: 1940 [2024-11-28 03:02:55,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=837, Invalid=2585, Unknown=0, NotChecked=0, Total=3422 [2024-11-28 03:02:55,024 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 2955 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:55,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2956 Valid, 642 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1660 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 03:02:55,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1940 states. [2024-11-28 03:02:55,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1940 to 1555. [2024-11-28 03:02:55,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1369 states have (on average 1.593864134404675) internal successors, (2182), 1427 states have internal predecessors, (2182), 125 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-28 03:02:55,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2432 transitions. [2024-11-28 03:02:55,205 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2432 transitions. Word has length 154 [2024-11-28 03:02:55,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:55,206 INFO L471 AbstractCegarLoop]: Abstraction has 1555 states and 2432 transitions. [2024-11-28 03:02:55,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 17.875) internal successors, (286), 17 states have internal predecessors, (286), 12 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 12 states have call predecessors, (36), 12 states have call successors, (36) [2024-11-28 03:02:55,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2432 transitions. [2024-11-28 03:02:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-28 03:02:55,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:55,207 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:55,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2024-11-28 03:02:55,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:55,409 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:02:55,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:55,410 INFO L85 PathProgramCache]: Analyzing trace with hash 2008185080, now seen corresponding path program 1 times [2024-11-28 03:02:55,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:55,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450544541] [2024-11-28 03:02:55,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:55,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:55,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789695628] [2024-11-28 03:02:55,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:55,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:55,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:55,437 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:55,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2024-11-28 03:02:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:55,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:02:55,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:56,330 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:02:56,330 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:02:56,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:56,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450544541] [2024-11-28 03:02:56,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:56,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789695628] [2024-11-28 03:02:56,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789695628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:56,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:02:56,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:02:56,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964399163] [2024-11-28 03:02:56,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:56,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:02:56,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:56,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:02:56,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:02:56,333 INFO L87 Difference]: Start difference. First operand 1555 states and 2432 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:02:56,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:56,947 INFO L93 Difference]: Finished difference Result 1559 states and 2432 transitions. [2024-11-28 03:02:56,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:02:56,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 155 [2024-11-28 03:02:56,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:56,951 INFO L225 Difference]: With dead ends: 1559 [2024-11-28 03:02:56,951 INFO L226 Difference]: Without dead ends: 1558 [2024-11-28 03:02:56,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:02:56,952 INFO L435 NwaCegarLoop]: 144 mSDtfsCounter, 18 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:56,952 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 336 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:02:56,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2024-11-28 03:02:57,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1555. [2024-11-28 03:02:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1555 states, 1369 states have (on average 1.5931336742147553) internal successors, (2181), 1427 states have internal predecessors, (2181), 125 states have call successors, (125), 2 states have call predecessors, (125), 2 states have return successors, (125), 125 states have call predecessors, (125), 125 states have call successors, (125) [2024-11-28 03:02:57,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1555 states to 1555 states and 2431 transitions. [2024-11-28 03:02:57,112 INFO L78 Accepts]: Start accepts. Automaton has 1555 states and 2431 transitions. Word has length 155 [2024-11-28 03:02:57,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:57,113 INFO L471 AbstractCegarLoop]: Abstraction has 1555 states and 2431 transitions. [2024-11-28 03:02:57,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 6 states have internal predecessors, (101), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:02:57,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1555 states and 2431 transitions. [2024-11-28 03:02:57,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-28 03:02:57,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:57,114 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:57,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2024-11-28 03:02:57,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:57,315 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:02:57,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:57,315 INFO L85 PathProgramCache]: Analyzing trace with hash -367817274, now seen corresponding path program 1 times [2024-11-28 03:02:57,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:57,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383947784] [2024-11-28 03:02:57,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:57,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:02:57,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:57,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383947784] [2024-11-28 03:02:57,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383947784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:57,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808038493] [2024-11-28 03:02:57,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:57,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:57,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:57,470 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:57,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2024-11-28 03:02:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:57,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:02:57,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:57,713 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:02:57,713 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:02:57,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808038493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:02:57,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:57,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-28 03:02:57,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586120485] [2024-11-28 03:02:57,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:02:57,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:02:57,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:57,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:02:57,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:02:57,715 INFO L87 Difference]: Start difference. First operand 1555 states and 2431 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 03:02:58,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:02:58,175 INFO L93 Difference]: Finished difference Result 1908 states and 2934 transitions. [2024-11-28 03:02:58,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:02:58,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 156 [2024-11-28 03:02:58,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:02:58,179 INFO L225 Difference]: With dead ends: 1908 [2024-11-28 03:02:58,179 INFO L226 Difference]: Without dead ends: 854 [2024-11-28 03:02:58,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:02:58,182 INFO L435 NwaCegarLoop]: 174 mSDtfsCounter, 166 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:02:58,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 559 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 03:02:58,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-28 03:02:58,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 829. [2024-11-28 03:02:58,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 703 states have (on average 1.411095305832148) internal successors, (992), 760 states have internal predecessors, (992), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-28 03:02:58,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1124 transitions. [2024-11-28 03:02:58,278 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1124 transitions. Word has length 156 [2024-11-28 03:02:58,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:02:58,278 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1124 transitions. [2024-11-28 03:02:58,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 03:02:58,278 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1124 transitions. [2024-11-28 03:02:58,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 03:02:58,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:02:58,280 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:02:58,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Ended with exit code 0 [2024-11-28 03:02:58,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:58,480 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:02:58,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:02:58,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1530281724, now seen corresponding path program 1 times [2024-11-28 03:02:58,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:02:58,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641172881] [2024-11-28 03:02:58,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:58,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:02:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:02:58,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540830252] [2024-11-28 03:02:58,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:02:58,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:02:58,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:02:58,503 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:02:58,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2024-11-28 03:02:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:02:58,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 03:02:58,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:02:59,042 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 1 proven. 52 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:02:59,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:02:59,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:02:59,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641172881] [2024-11-28 03:02:59,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:02:59,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540830252] [2024-11-28 03:02:59,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540830252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:02:59,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:02:59,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 03:02:59,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141250735] [2024-11-28 03:02:59,156 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:02:59,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:02:59,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:02:59,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:02:59,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:02:59,157 INFO L87 Difference]: Start difference. First operand 829 states and 1124 transitions. Second operand has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 03:03:00,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:00,763 INFO L93 Difference]: Finished difference Result 933 states and 1149 transitions. [2024-11-28 03:03:00,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:03:00,764 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 157 [2024-11-28 03:03:00,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:00,766 INFO L225 Difference]: With dead ends: 933 [2024-11-28 03:03:00,766 INFO L226 Difference]: Without dead ends: 931 [2024-11-28 03:03:00,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2024-11-28 03:03:00,767 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 487 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 962 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:00,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 892 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 962 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:03:00,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2024-11-28 03:03:00,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 829. [2024-11-28 03:03:00,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 829 states, 703 states have (on average 1.406827880512091) internal successors, (989), 760 states have internal predecessors, (989), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-28 03:03:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 829 states to 829 states and 1121 transitions. [2024-11-28 03:03:00,869 INFO L78 Accepts]: Start accepts. Automaton has 829 states and 1121 transitions. Word has length 157 [2024-11-28 03:03:00,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:00,870 INFO L471 AbstractCegarLoop]: Abstraction has 829 states and 1121 transitions. [2024-11-28 03:03:00,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 03:03:00,870 INFO L276 IsEmpty]: Start isEmpty. Operand 829 states and 1121 transitions. [2024-11-28 03:03:00,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-28 03:03:00,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:00,872 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 03:03:00,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2024-11-28 03:03:01,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:01,072 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:03:01,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:01,072 INFO L85 PathProgramCache]: Analyzing trace with hash 194093258, now seen corresponding path program 1 times [2024-11-28 03:03:01,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:01,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834627787] [2024-11-28 03:03:01,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:01,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:03:01,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [221686133] [2024-11-28 03:03:01,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:01,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:01,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:01,099 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:01,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2024-11-28 03:03:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:01,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 03:03:01,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2024-11-28 03:03:01,933 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:02,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:02,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834627787] [2024-11-28 03:03:02,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:02,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221686133] [2024-11-28 03:03:02,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221686133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:02,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:02,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:03:02,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363739854] [2024-11-28 03:03:02,150 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:02,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:03:02,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:02,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:03:02,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:03:02,151 INFO L87 Difference]: Start difference. First operand 829 states and 1121 transitions. Second operand has 12 states, 10 states have (on average 10.7) internal successors, (107), 11 states have internal predecessors, (107), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 03:03:03,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:03,831 INFO L93 Difference]: Finished difference Result 836 states and 1125 transitions. [2024-11-28 03:03:03,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 03:03:03,832 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 10.7) internal successors, (107), 11 states have internal predecessors, (107), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) Word has length 158 [2024-11-28 03:03:03,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:03,834 INFO L225 Difference]: With dead ends: 836 [2024-11-28 03:03:03,834 INFO L226 Difference]: Without dead ends: 834 [2024-11-28 03:03:03,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:03:03,835 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 436 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 1237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:03,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 514 Invalid, 1237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:03:03,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-28 03:03:03,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 831. [2024-11-28 03:03:03,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 705 states have (on average 1.4042553191489362) internal successors, (990), 762 states have internal predecessors, (990), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-28 03:03:03,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1122 transitions. [2024-11-28 03:03:03,900 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1122 transitions. Word has length 158 [2024-11-28 03:03:03,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:03,900 INFO L471 AbstractCegarLoop]: Abstraction has 831 states and 1122 transitions. [2024-11-28 03:03:03,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 10.7) internal successors, (107), 11 states have internal predecessors, (107), 5 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 5 states have call successors, (12) [2024-11-28 03:03:03,900 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1122 transitions. [2024-11-28 03:03:03,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 03:03:03,901 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:03,901 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:03,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2024-11-28 03:03:04,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2024-11-28 03:03:04,102 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:03:04,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:04,102 INFO L85 PathProgramCache]: Analyzing trace with hash -143037386, now seen corresponding path program 1 times [2024-11-28 03:03:04,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:04,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118286380] [2024-11-28 03:03:04,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:04,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:03:04,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842934283] [2024-11-28 03:03:04,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:04,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:04,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:04,123 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:04,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2024-11-28 03:03:04,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:04,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:03:04,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:03:05,744 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:09,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:09,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118286380] [2024-11-28 03:03:09,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:09,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842934283] [2024-11-28 03:03:09,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842934283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:09,991 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:09,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:03:09,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737350852] [2024-11-28 03:03:09,991 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:09,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:03:09,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:09,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:03:09,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=155, Unknown=1, NotChecked=0, Total=210 [2024-11-28 03:03:09,992 INFO L87 Difference]: Start difference. First operand 831 states and 1122 transitions. Second operand has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:03:12,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:12,015 INFO L93 Difference]: Finished difference Result 961 states and 1312 transitions. [2024-11-28 03:03:12,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:03:12,016 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 159 [2024-11-28 03:03:12,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:12,018 INFO L225 Difference]: With dead ends: 961 [2024-11-28 03:03:12,018 INFO L226 Difference]: Without dead ends: 958 [2024-11-28 03:03:12,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=74, Invalid=197, Unknown=1, NotChecked=0, Total=272 [2024-11-28 03:03:12,019 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 241 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 1516 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:12,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 555 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1516 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 03:03:12,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2024-11-28 03:03:12,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 927. [2024-11-28 03:03:12,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 927 states, 793 states have (on average 1.4224464060529634) internal successors, (1128), 850 states have internal predecessors, (1128), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 03:03:12,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 927 states to 927 states and 1276 transitions. [2024-11-28 03:03:12,142 INFO L78 Accepts]: Start accepts. Automaton has 927 states and 1276 transitions. Word has length 159 [2024-11-28 03:03:12,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:12,142 INFO L471 AbstractCegarLoop]: Abstraction has 927 states and 1276 transitions. [2024-11-28 03:03:12,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 11 states have internal predecessors, (105), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:03:12,142 INFO L276 IsEmpty]: Start isEmpty. Operand 927 states and 1276 transitions. [2024-11-28 03:03:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-28 03:03:12,143 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:12,144 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 03:03:12,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Ended with exit code 0 [2024-11-28 03:03:12,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable67 [2024-11-28 03:03:12,344 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:03:12,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:12,345 INFO L85 PathProgramCache]: Analyzing trace with hash -143089020, now seen corresponding path program 1 times [2024-11-28 03:03:12,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:12,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561014878] [2024-11-28 03:03:12,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:12,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:12,531 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 46 proven. 2 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:03:12,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:12,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561014878] [2024-11-28 03:03:12,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561014878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:12,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934840661] [2024-11-28 03:03:12,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:12,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:12,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:12,534 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:12,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2024-11-28 03:03:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:12,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:03:12,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:12,831 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:03:12,832 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:03:12,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934840661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:12,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:12,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2024-11-28 03:03:12,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862536616] [2024-11-28 03:03:12,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:12,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:03:12,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:12,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:03:12,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:03:12,835 INFO L87 Difference]: Start difference. First operand 927 states and 1276 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 03:03:13,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:13,488 INFO L93 Difference]: Finished difference Result 960 states and 1276 transitions. [2024-11-28 03:03:13,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:03:13,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 159 [2024-11-28 03:03:13,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:13,492 INFO L225 Difference]: With dead ends: 960 [2024-11-28 03:03:13,492 INFO L226 Difference]: Without dead ends: 959 [2024-11-28 03:03:13,493 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:03:13,493 INFO L435 NwaCegarLoop]: 227 mSDtfsCounter, 346 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:13,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1077 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:03:13,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-11-28 03:03:13,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 926. [2024-11-28 03:03:13,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 793 states have (on average 1.416141235813367) internal successors, (1123), 849 states have internal predecessors, (1123), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 03:03:13,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1271 transitions. [2024-11-28 03:03:13,658 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1271 transitions. Word has length 159 [2024-11-28 03:03:13,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:13,658 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1271 transitions. [2024-11-28 03:03:13,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-28 03:03:13,658 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1271 transitions. [2024-11-28 03:03:13,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-28 03:03:13,660 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:13,660 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:13,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Ended with exit code 0 [2024-11-28 03:03:13,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2024-11-28 03:03:13,861 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:03:13,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:13,861 INFO L85 PathProgramCache]: Analyzing trace with hash -139191484, now seen corresponding path program 1 times [2024-11-28 03:03:13,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:13,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013258455] [2024-11-28 03:03:13,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:13,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:03:13,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1200930604] [2024-11-28 03:03:13,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:13,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:13,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:13,891 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:13,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2024-11-28 03:03:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:13,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:03:14,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:15,742 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 41 proven. 1 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:03:15,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:16,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:16,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013258455] [2024-11-28 03:03:16,134 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:16,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200930604] [2024-11-28 03:03:16,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200930604] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:16,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:16,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:03:16,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130811751] [2024-11-28 03:03:16,134 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:16,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:03:16,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:16,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:03:16,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:03:16,135 INFO L87 Difference]: Start difference. First operand 926 states and 1271 transitions. Second operand has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:03:17,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:17,518 INFO L93 Difference]: Finished difference Result 950 states and 1288 transitions. [2024-11-28 03:03:17,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:03:17,519 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 160 [2024-11-28 03:03:17,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:17,522 INFO L225 Difference]: With dead ends: 950 [2024-11-28 03:03:17,522 INFO L226 Difference]: Without dead ends: 947 [2024-11-28 03:03:17,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:03:17,523 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 193 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:17,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 436 Invalid, 1033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:03:17,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states. [2024-11-28 03:03:17,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 926. [2024-11-28 03:03:17,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 793 states have (on average 1.4047919293820934) internal successors, (1114), 849 states have internal predecessors, (1114), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 03:03:17,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1262 transitions. [2024-11-28 03:03:17,630 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1262 transitions. Word has length 160 [2024-11-28 03:03:17,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:17,631 INFO L471 AbstractCegarLoop]: Abstraction has 926 states and 1262 transitions. [2024-11-28 03:03:17,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.6) internal successors, (106), 11 states have internal predecessors, (106), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 03:03:17,631 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1262 transitions. [2024-11-28 03:03:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-28 03:03:17,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:17,632 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:17,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2024-11-28 03:03:17,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2024-11-28 03:03:17,833 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:03:17,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:17,833 INFO L85 PathProgramCache]: Analyzing trace with hash -19968520, now seen corresponding path program 1 times [2024-11-28 03:03:17,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:17,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066572606] [2024-11-28 03:03:17,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:17,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:03:17,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [123255454] [2024-11-28 03:03:17,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:17,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:17,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:17,854 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:17,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2024-11-28 03:03:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:17,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 03:03:17,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:20,104 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:03:20,104 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:21,506 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2024-11-28 03:03:21,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:21,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066572606] [2024-11-28 03:03:21,506 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:21,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123255454] [2024-11-28 03:03:21,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [123255454] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:03:21,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:03:21,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-28 03:03:21,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606369745] [2024-11-28 03:03:21,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:21,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:03:21,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:21,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:03:21,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:03:21,508 INFO L87 Difference]: Start difference. First operand 926 states and 1262 transitions. Second operand has 18 states, 17 states have (on average 12.117647058823529) internal successors, (206), 18 states have internal predecessors, (206), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 03:03:30,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:30,607 INFO L93 Difference]: Finished difference Result 958 states and 1295 transitions. [2024-11-28 03:03:30,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 03:03:30,607 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 12.117647058823529) internal successors, (206), 18 states have internal predecessors, (206), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) Word has length 161 [2024-11-28 03:03:30,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:30,610 INFO L225 Difference]: With dead ends: 958 [2024-11-28 03:03:30,610 INFO L226 Difference]: Without dead ends: 955 [2024-11-28 03:03:30,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=351, Invalid=1209, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 03:03:30,611 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 958 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 2766 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 2897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 2766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:30,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 341 Invalid, 2897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 2766 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-28 03:03:30,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2024-11-28 03:03:30,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 944. [2024-11-28 03:03:30,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 811 states have (on average 1.3945745992601726) internal successors, (1131), 867 states have internal predecessors, (1131), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 03:03:30,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1279 transitions. [2024-11-28 03:03:30,693 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1279 transitions. Word has length 161 [2024-11-28 03:03:30,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:30,694 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1279 transitions. [2024-11-28 03:03:30,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 12.117647058823529) internal successors, (206), 18 states have internal predecessors, (206), 7 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 7 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 03:03:30,694 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1279 transitions. [2024-11-28 03:03:30,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-28 03:03:30,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:30,695 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 03:03:30,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2024-11-28 03:03:30,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:30,896 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:03:30,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:30,896 INFO L85 PathProgramCache]: Analyzing trace with hash 727583283, now seen corresponding path program 1 times [2024-11-28 03:03:30,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:30,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50785679] [2024-11-28 03:03:30,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:30,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:03:30,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [910111440] [2024-11-28 03:03:30,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:30,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:30,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:30,921 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:30,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2024-11-28 03:03:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:31,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:03:31,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:32,087 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 41 proven. 13 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 03:03:32,087 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:32,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:32,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50785679] [2024-11-28 03:03:32,240 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:32,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910111440] [2024-11-28 03:03:32,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910111440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:32,240 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:32,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 03:03:32,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337064137] [2024-11-28 03:03:32,241 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:32,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:03:32,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:32,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:03:32,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:03:32,242 INFO L87 Difference]: Start difference. First operand 944 states and 1279 transitions. Second operand has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 03:03:33,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:33,518 INFO L93 Difference]: Finished difference Result 970 states and 1288 transitions. [2024-11-28 03:03:33,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:03:33,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 166 [2024-11-28 03:03:33,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:33,520 INFO L225 Difference]: With dead ends: 970 [2024-11-28 03:03:33,521 INFO L226 Difference]: Without dead ends: 968 [2024-11-28 03:03:33,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:03:33,521 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 199 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:33,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 506 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 03:03:33,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2024-11-28 03:03:33,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 944. [2024-11-28 03:03:33,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 811 states have (on average 1.3884093711467325) internal successors, (1126), 867 states have internal predecessors, (1126), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 03:03:33,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1274 transitions. [2024-11-28 03:03:33,606 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1274 transitions. Word has length 166 [2024-11-28 03:03:33,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:33,606 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1274 transitions. [2024-11-28 03:03:33,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 03:03:33,607 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1274 transitions. [2024-11-28 03:03:33,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-28 03:03:33,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:33,608 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 03:03:33,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2024-11-28 03:03:33,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:33,808 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:03:33,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:33,809 INFO L85 PathProgramCache]: Analyzing trace with hash -599991177, now seen corresponding path program 1 times [2024-11-28 03:03:33,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:33,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021777283] [2024-11-28 03:03:33,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:33,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:03:33,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2019639672] [2024-11-28 03:03:33,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:33,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:33,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:33,834 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:33,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2024-11-28 03:03:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:33,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:03:33,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:35,142 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 41 proven. 21 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-11-28 03:03:35,142 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:35,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:35,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021777283] [2024-11-28 03:03:35,198 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:35,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019639672] [2024-11-28 03:03:35,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019639672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:35,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:35,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 03:03:35,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296830365] [2024-11-28 03:03:35,198 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:35,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:03:35,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:35,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:03:35,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:03:35,200 INFO L87 Difference]: Start difference. First operand 944 states and 1274 transitions. Second operand has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 03:03:37,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:37,040 INFO L93 Difference]: Finished difference Result 962 states and 1275 transitions. [2024-11-28 03:03:37,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:03:37,041 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 170 [2024-11-28 03:03:37,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:37,043 INFO L225 Difference]: With dead ends: 962 [2024-11-28 03:03:37,043 INFO L226 Difference]: Without dead ends: 960 [2024-11-28 03:03:37,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:03:37,044 INFO L435 NwaCegarLoop]: 130 mSDtfsCounter, 111 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:37,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 417 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:03:37,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-11-28 03:03:37,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 944. [2024-11-28 03:03:37,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 944 states, 811 states have (on average 1.3810110974106042) internal successors, (1120), 867 states have internal predecessors, (1120), 74 states have call successors, (74), 2 states have call predecessors, (74), 2 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-28 03:03:37,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1268 transitions. [2024-11-28 03:03:37,205 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1268 transitions. Word has length 170 [2024-11-28 03:03:37,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:37,205 INFO L471 AbstractCegarLoop]: Abstraction has 944 states and 1268 transitions. [2024-11-28 03:03:37,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.875) internal successors, (111), 9 states have internal predecessors, (111), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-28 03:03:37,206 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1268 transitions. [2024-11-28 03:03:37,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-28 03:03:37,207 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:37,208 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:37,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2024-11-28 03:03:37,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:37,409 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:03:37,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:37,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1464381787, now seen corresponding path program 1 times [2024-11-28 03:03:37,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:37,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219573837] [2024-11-28 03:03:37,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:37,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:03:37,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1696703281] [2024-11-28 03:03:37,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:37,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:37,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:37,433 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:37,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2024-11-28 03:03:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:37,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:03:37,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:38,866 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-11-28 03:03:38,866 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:38,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:38,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219573837] [2024-11-28 03:03:38,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:38,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696703281] [2024-11-28 03:03:38,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696703281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:38,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:38,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 03:03:38,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570248819] [2024-11-28 03:03:38,928 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:38,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:03:38,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:38,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:03:38,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:03:38,929 INFO L87 Difference]: Start difference. First operand 944 states and 1268 transitions. Second operand has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:03:40,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:40,307 INFO L93 Difference]: Finished difference Result 958 states and 1269 transitions. [2024-11-28 03:03:40,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:03:40,308 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 172 [2024-11-28 03:03:40,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:40,310 INFO L225 Difference]: With dead ends: 958 [2024-11-28 03:03:40,310 INFO L226 Difference]: Without dead ends: 945 [2024-11-28 03:03:40,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:03:40,311 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 60 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:40,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 344 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:03:40,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2024-11-28 03:03:40,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 932. [2024-11-28 03:03:40,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 800 states have (on average 1.38375) internal successors, (1107), 856 states have internal predecessors, (1107), 73 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:03:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1253 transitions. [2024-11-28 03:03:40,448 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1253 transitions. Word has length 172 [2024-11-28 03:03:40,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:40,448 INFO L471 AbstractCegarLoop]: Abstraction has 932 states and 1253 transitions. [2024-11-28 03:03:40,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 7 states have internal predecessors, (77), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 03:03:40,448 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1253 transitions. [2024-11-28 03:03:40,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-28 03:03:40,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:40,450 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 03:03:40,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2024-11-28 03:03:40,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:40,654 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:03:40,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:40,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1824649402, now seen corresponding path program 1 times [2024-11-28 03:03:40,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:40,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114811499] [2024-11-28 03:03:40,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:40,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:03:40,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [416641193] [2024-11-28 03:03:40,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:40,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:40,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:40,679 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:40,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2024-11-28 03:03:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:40,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:03:40,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:42,085 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 03:03:42,086 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:42,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:42,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114811499] [2024-11-28 03:03:42,226 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:42,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416641193] [2024-11-28 03:03:42,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416641193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:42,226 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:42,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 03:03:42,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109931774] [2024-11-28 03:03:42,226 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:42,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:03:42,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:42,227 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:03:42,227 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:03:42,227 INFO L87 Difference]: Start difference. First operand 932 states and 1253 transitions. Second operand has 10 states, 9 states have (on average 13.0) internal successors, (117), 10 states have internal predecessors, (117), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 03:03:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:44,283 INFO L93 Difference]: Finished difference Result 949 states and 1262 transitions. [2024-11-28 03:03:44,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:03:44,283 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.0) internal successors, (117), 10 states have internal predecessors, (117), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 181 [2024-11-28 03:03:44,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:44,285 INFO L225 Difference]: With dead ends: 949 [2024-11-28 03:03:44,285 INFO L226 Difference]: Without dead ends: 948 [2024-11-28 03:03:44,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:03:44,287 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 184 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:44,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 782 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:03:44,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-28 03:03:44,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 932. [2024-11-28 03:03:44,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 800 states have (on average 1.3825) internal successors, (1106), 856 states have internal predecessors, (1106), 73 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:03:44,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1252 transitions. [2024-11-28 03:03:44,408 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1252 transitions. Word has length 181 [2024-11-28 03:03:44,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:44,408 INFO L471 AbstractCegarLoop]: Abstraction has 932 states and 1252 transitions. [2024-11-28 03:03:44,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.0) internal successors, (117), 10 states have internal predecessors, (117), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 03:03:44,408 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1252 transitions. [2024-11-28 03:03:44,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 03:03:44,409 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:44,409 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 03:03:44,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2024-11-28 03:03:44,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2024-11-28 03:03:44,610 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:03:44,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:44,610 INFO L85 PathProgramCache]: Analyzing trace with hash 729556714, now seen corresponding path program 1 times [2024-11-28 03:03:44,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:44,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762307751] [2024-11-28 03:03:44,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:44,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:03:44,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789974891] [2024-11-28 03:03:44,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:44,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:44,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:44,630 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:44,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2024-11-28 03:03:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:44,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 03:03:44,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 41 proven. 37 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-28 03:03:46,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:46,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:46,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762307751] [2024-11-28 03:03:46,834 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:03:46,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789974891] [2024-11-28 03:03:46,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789974891] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:46,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:03:46,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 03:03:46,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578208073] [2024-11-28 03:03:46,835 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:46,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 03:03:46,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:46,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 03:03:46,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:03:46,836 INFO L87 Difference]: Start difference. First operand 932 states and 1252 transitions. Second operand has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 12 states have internal predecessors, (118), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 03:03:49,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:49,361 INFO L93 Difference]: Finished difference Result 955 states and 1269 transitions. [2024-11-28 03:03:49,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 03:03:49,361 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 12 states have internal predecessors, (118), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 182 [2024-11-28 03:03:49,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:49,363 INFO L225 Difference]: With dead ends: 955 [2024-11-28 03:03:49,363 INFO L226 Difference]: Without dead ends: 950 [2024-11-28 03:03:49,364 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:03:49,364 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 173 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:49,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 509 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 03:03:49,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2024-11-28 03:03:49,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 929. [2024-11-28 03:03:49,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 797 states have (on average 1.3764115432873274) internal successors, (1097), 853 states have internal predecessors, (1097), 73 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:03:49,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1243 transitions. [2024-11-28 03:03:49,453 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1243 transitions. Word has length 182 [2024-11-28 03:03:49,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:49,454 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1243 transitions. [2024-11-28 03:03:49,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.727272727272727) internal successors, (118), 12 states have internal predecessors, (118), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 03:03:49,454 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1243 transitions. [2024-11-28 03:03:49,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-28 03:03:49,455 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:49,455 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:49,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2024-11-28 03:03:49,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2024-11-28 03:03:49,655 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:03:49,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:49,656 INFO L85 PathProgramCache]: Analyzing trace with hash -850011415, now seen corresponding path program 1 times [2024-11-28 03:03:49,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:49,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615690891] [2024-11-28 03:03:49,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:49,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:03:49,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1114361950] [2024-11-28 03:03:49,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:49,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:49,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:49,683 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:49,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2024-11-28 03:03:49,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:49,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:03:49,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:52,364 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-28 03:03:52,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:04:04,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:04:04,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615690891] [2024-11-28 03:04:04,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:04:04,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1114361950] [2024-11-28 03:04:04,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1114361950] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:04:04,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:04:04,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 03:04:04,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037357377] [2024-11-28 03:04:04,722 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:04:04,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:04:04,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:04:04,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:04:04,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=139, Unknown=3, NotChecked=0, Total=182 [2024-11-28 03:04:04,723 INFO L87 Difference]: Start difference. First operand 929 states and 1243 transitions. Second operand has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 10 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 03:04:13,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:14,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:18,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.50s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:22,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:26,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:27,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:31,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:33,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:34,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:39,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:43,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:45,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:46,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:47,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:51,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:52,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:57,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:58,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:04:59,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:05:03,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:05:08,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:05:12,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:05:17,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:05:21,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:05:22,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:05:24,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:05:24,095 INFO L93 Difference]: Finished difference Result 944 states and 1252 transitions. [2024-11-28 03:05:24,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:05:24,096 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 10 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 188 [2024-11-28 03:05:24,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:05:24,097 INFO L225 Difference]: With dead ends: 944 [2024-11-28 03:05:24,097 INFO L226 Difference]: Without dead ends: 943 [2024-11-28 03:05:24,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=82, Invalid=294, Unknown=4, NotChecked=0, Total=380 [2024-11-28 03:05:24,098 INFO L435 NwaCegarLoop]: 145 mSDtfsCounter, 188 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 13 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 1355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.9s IncrementalHoareTripleChecker+Time [2024-11-28 03:05:24,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 696 Invalid, 1355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1320 Invalid, 22 Unknown, 0 Unchecked, 74.9s Time] [2024-11-28 03:05:24,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-11-28 03:05:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 929. [2024-11-28 03:05:24,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 797 states have (on average 1.3739021329987453) internal successors, (1095), 853 states have internal predecessors, (1095), 73 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 03:05:24,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1241 transitions. [2024-11-28 03:05:24,183 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1241 transitions. Word has length 188 [2024-11-28 03:05:24,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:05:24,184 INFO L471 AbstractCegarLoop]: Abstraction has 929 states and 1241 transitions. [2024-11-28 03:05:24,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 10 states have internal predecessors, (119), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 03:05:24,184 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1241 transitions. [2024-11-28 03:05:24,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-28 03:05:24,184 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:05:24,184 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:05:24,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2024-11-28 03:05:24,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable76 [2024-11-28 03:05:24,385 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 61 more)] === [2024-11-28 03:05:24,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:05:24,385 INFO L85 PathProgramCache]: Analyzing trace with hash -580549984, now seen corresponding path program 1 times [2024-11-28 03:05:24,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:05:24,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505375856] [2024-11-28 03:05:24,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:24,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:05:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 03:05:24,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1135089555] [2024-11-28 03:05:24,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:05:24,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:05:24,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:05:24,404 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:05:24,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e6592d0-e4f1-4bb0-b28d-f00129e5289c/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2024-11-28 03:05:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:05:24,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 03:05:24,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:05:45,501 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2024-11-28 03:05:45,501 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:05:54,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:05:54,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505375856] [2024-11-28 03:05:54,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 03:05:54,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135089555] [2024-11-28 03:05:54,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135089555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:05:54,080 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:05:54,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 03:05:54,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207843546] [2024-11-28 03:05:54,080 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 03:05:54,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:05:54,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:05:54,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:05:54,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=159, Unknown=7, NotChecked=0, Total=210 [2024-11-28 03:05:54,081 INFO L87 Difference]: Start difference. First operand 929 states and 1241 transitions. Second operand has 11 states, 10 states have (on average 12.0) internal successors, (120), 11 states have internal predecessors, (120), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-28 03:05:56,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.81s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:00,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:04,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:12,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:16,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:20,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:24,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:28,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:36,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:40,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:44,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:48,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:52,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:06:56,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:00,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:04,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:08,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:12,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:16,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:20,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:24,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:28,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:32,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:36,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:40,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:44,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:48,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:52,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:07:56,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.91s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:00,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:04,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:08,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:12,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:16,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:20,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 03:08:24,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]