./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound1.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_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/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_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/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_a92ea12c-af5c-4ef8-8d58-aab93edbff13/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 89c26eeb2471ea361dc7d29b089a771d019574a0d594170c0c8f43bdd67825ef --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:05:50,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:05:50,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:05:50,599 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:05:50,600 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:05:50,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:05:50,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:05:50,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:05:50,635 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:05:50,635 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:05:50,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:05:50,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:05:50,636 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:05:50,636 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:05:50,636 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:05:50,637 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:05:50,637 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:05:50,637 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:05:50,637 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:05:50,637 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:05:50,638 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:05:50,638 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:05:50,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:05:50,638 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:05:50,638 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:05:50,639 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:05:50,639 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:05:50,639 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:05:50,639 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:05:50,639 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:05:50,640 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:05:50,640 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:05:50,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:05:50,640 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:05:50,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:50,641 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:05:50,641 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:05:50,641 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:05:50,641 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:05:50,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:50,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:05:50,642 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:05:50,642 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:05:50,642 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:05:50,642 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:05:50,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:05:50,642 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:05:50,643 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:05:50,643 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:05:50,643 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:05:50,643 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_a92ea12c-af5c-4ef8-8d58-aab93edbff13/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 -> 89c26eeb2471ea361dc7d29b089a771d019574a0d594170c0c8f43bdd67825ef [2024-11-27 20:05:51,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:05:51,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:05:51,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:05:51,062 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:05:51,062 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:05:51,064 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound1.c [2024-11-27 20:05:54,758 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/data/0b1cc0377/5279927870eb4ce2bf0908914a3cafe6/FLAG86a8a2a70 [2024-11-27 20:05:55,129 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:05:55,130 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/sv-benchmarks/c/nla-digbench-scaling/lcm1_unwindbound1.c [2024-11-27 20:05:55,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/data/0b1cc0377/5279927870eb4ce2bf0908914a3cafe6/FLAG86a8a2a70 [2024-11-27 20:05:55,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/data/0b1cc0377/5279927870eb4ce2bf0908914a3cafe6 [2024-11-27 20:05:55,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:05:55,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:05:55,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:05:55,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:05:55,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:05:55,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c4d8bb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55, skipping insertion in model container [2024-11-27 20:05:55,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,199 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:05:55,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:05:55,476 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:05:55,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:05:55,536 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:05:55,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55 WrapperNode [2024-11-27 20:05:55,537 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:05:55,538 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:05:55,538 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:05:55,538 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:05:55,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,588 INFO L138 Inliner]: procedures = 14, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 87 [2024-11-27 20:05:55,588 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:05:55,589 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:05:55,589 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:05:55,589 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:05:55,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,603 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,605 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,628 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 7]. The 0 writes are split as follows [0, 0]. [2024-11-27 20:05:55,628 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,628 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,634 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,647 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,652 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,654 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:05:55,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:05:55,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:05:55,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:05:55,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (1/1) ... [2024-11-27 20:05:55,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:05:55,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:55,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:05:55,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:05:55,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:05:55,752 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 20:05:55,752 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 20:05:55,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:05:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 20:05:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:05:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:05:55,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:05:55,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:05:55,842 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:05:55,845 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:05:56,086 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-27 20:05:56,086 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:05:56,099 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:05:56,100 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-27 20:05:56,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:56 BoogieIcfgContainer [2024-11-27 20:05:56,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:05:56,104 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:05:56,104 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:05:56,112 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:05:56,112 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:05:55" (1/3) ... [2024-11-27 20:05:56,115 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b1b522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:05:56, skipping insertion in model container [2024-11-27 20:05:56,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:05:55" (2/3) ... [2024-11-27 20:05:56,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44b1b522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:05:56, skipping insertion in model container [2024-11-27 20:05:56,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:56" (3/3) ... [2024-11-27 20:05:56,120 INFO L128 eAbstractionObserver]: Analyzing ICFG lcm1_unwindbound1.c [2024-11-27 20:05:56,149 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:05:56,151 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG lcm1_unwindbound1.c that has 3 procedures, 47 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2024-11-27 20:05:56,243 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:05:56,263 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;@23dcb33e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:05:56,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-27 20:05:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 35 states have internal predecessors, (46), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-27 20:05:56,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 20:05:56,276 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:56,277 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:56,278 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:05:56,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2022069437, now seen corresponding path program 1 times [2024-11-27 20:05:56,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:56,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989454003] [2024-11-27 20:05:56,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:56,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:56,533 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 20:05:56,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:56,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989454003] [2024-11-27 20:05:56,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989454003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:05:56,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769464132] [2024-11-27 20:05:56,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:56,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:05:56,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:05:56,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:05:56,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:05:56,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:56,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 20:05:56,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:05:56,700 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 20:05:56,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:05:56,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769464132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:56,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:05:56,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 20:05:56,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907759874] [2024-11-27 20:05:56,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:56,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 20:05:56,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:56,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 20:05:56,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:05:56,741 INFO L87 Difference]: Start difference. First operand has 47 states, 29 states have (on average 1.5862068965517242) internal successors, (46), 35 states have internal predecessors, (46), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:05:56,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:56,774 INFO L93 Difference]: Finished difference Result 90 states and 132 transitions. [2024-11-27 20:05:56,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 20:05:56,777 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2024-11-27 20:05:56,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:56,782 INFO L225 Difference]: With dead ends: 90 [2024-11-27 20:05:56,783 INFO L226 Difference]: Without dead ends: 39 [2024-11-27 20:05:56,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 20:05:56,790 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:56,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:56,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-11-27 20:05:56,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-11-27 20:05:56,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 20:05:56,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2024-11-27 20:05:56,848 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 25 [2024-11-27 20:05:56,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:56,849 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2024-11-27 20:05:56,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-27 20:05:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2024-11-27 20:05:56,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-27 20:05:56,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:56,852 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:56,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:05:57,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 20:05:57,057 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:05:57,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:57,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2112941507, now seen corresponding path program 1 times [2024-11-27 20:05:57,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:57,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289543339] [2024-11-27 20:05:57,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:57,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:57,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:57,356 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:05:57,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:57,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289543339] [2024-11-27 20:05:57,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289543339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:57,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:57,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:05:57,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698388290] [2024-11-27 20:05:57,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:57,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:57,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:57,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:57,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:57,362 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 20:05:57,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:57,467 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2024-11-27 20:05:57,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:05:57,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 25 [2024-11-27 20:05:57,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:57,470 INFO L225 Difference]: With dead ends: 45 [2024-11-27 20:05:57,470 INFO L226 Difference]: Without dead ends: 43 [2024-11-27 20:05:57,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:57,472 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 11 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:57,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 112 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:05:57,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-27 20:05:57,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2024-11-27 20:05:57,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 states have internal predecessors, (37), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 20:05:57,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2024-11-27 20:05:57,492 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 25 [2024-11-27 20:05:57,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:57,495 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2024-11-27 20:05:57,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-27 20:05:57,495 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2024-11-27 20:05:57,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-27 20:05:57,496 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:57,497 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:57,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:05:57,497 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:05:57,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:57,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1187336732, now seen corresponding path program 1 times [2024-11-27 20:05:57,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:57,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185870096] [2024-11-27 20:05:57,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:57,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:05:57,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:57,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185870096] [2024-11-27 20:05:57,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185870096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:57,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:57,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:05:57,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118727712] [2024-11-27 20:05:57,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:57,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:05:57,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:57,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:05:57,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:05:57,957 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:05:58,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:58,219 INFO L93 Difference]: Finished difference Result 87 states and 104 transitions. [2024-11-27 20:05:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:05:58,220 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 35 [2024-11-27 20:05:58,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:58,221 INFO L225 Difference]: With dead ends: 87 [2024-11-27 20:05:58,222 INFO L226 Difference]: Without dead ends: 59 [2024-11-27 20:05:58,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:05:58,226 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 23 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:58,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 185 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:05:58,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-11-27 20:05:58,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 53. [2024-11-27 20:05:58,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 41 states have internal predecessors, (47), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:05:58,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2024-11-27 20:05:58,246 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 35 [2024-11-27 20:05:58,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:58,248 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2024-11-27 20:05:58,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:05:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2024-11-27 20:05:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-27 20:05:58,250 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:58,250 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:58,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:05:58,251 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:05:58,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:58,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1847266907, now seen corresponding path program 1 times [2024-11-27 20:05:58,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:58,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563725091] [2024-11-27 20:05:58,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:58,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:58,508 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:05:58,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:58,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563725091] [2024-11-27 20:05:58,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563725091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:58,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:58,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:05:58,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491422786] [2024-11-27 20:05:58,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:58,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:05:58,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:58,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:05:58,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:05:58,511 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:05:58,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:58,741 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2024-11-27 20:05:58,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:05:58,742 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 36 [2024-11-27 20:05:58,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:58,745 INFO L225 Difference]: With dead ends: 54 [2024-11-27 20:05:58,745 INFO L226 Difference]: Without dead ends: 53 [2024-11-27 20:05:58,746 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:05:58,748 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 17 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:58,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 187 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:05:58,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-27 20:05:58,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-27 20:05:58,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.2777777777777777) internal successors, (46), 41 states have internal predecessors, (46), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:05:58,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2024-11-27 20:05:58,767 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 36 [2024-11-27 20:05:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:58,768 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2024-11-27 20:05:58,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:05:58,768 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2024-11-27 20:05:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-27 20:05:58,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:58,771 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] [2024-11-27 20:05:58,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:05:58,772 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:05:58,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:58,774 INFO L85 PathProgramCache]: Analyzing trace with hash -512392861, now seen corresponding path program 1 times [2024-11-27 20:05:58,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:58,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645242981] [2024-11-27 20:05:58,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:58,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:58,915 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:05:58,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:58,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645242981] [2024-11-27 20:05:58,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645242981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:58,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:58,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:58,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167642420] [2024-11-27 20:05:58,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:58,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:05:58,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:58,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:05:58,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:58,920 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:05:59,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:59,022 INFO L93 Difference]: Finished difference Result 91 states and 108 transitions. [2024-11-27 20:05:59,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:05:59,025 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 39 [2024-11-27 20:05:59,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:59,026 INFO L225 Difference]: With dead ends: 91 [2024-11-27 20:05:59,026 INFO L226 Difference]: Without dead ends: 63 [2024-11-27 20:05:59,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:05:59,027 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 10 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:59,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 155 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:05:59,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-27 20:05:59,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 57. [2024-11-27 20:05:59,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 40 states have (on average 1.275) internal successors, (51), 45 states have internal predecessors, (51), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:05:59,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 67 transitions. [2024-11-27 20:05:59,041 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 67 transitions. Word has length 39 [2024-11-27 20:05:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:59,041 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 67 transitions. [2024-11-27 20:05:59,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:05:59,042 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2024-11-27 20:05:59,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 20:05:59,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:59,042 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] [2024-11-27 20:05:59,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:05:59,043 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:05:59,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:59,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1295690580, now seen corresponding path program 1 times [2024-11-27 20:05:59,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:59,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363729035] [2024-11-27 20:05:59,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:59,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:59,300 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:05:59,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:59,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363729035] [2024-11-27 20:05:59,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363729035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:59,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:59,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-27 20:05:59,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320241703] [2024-11-27 20:05:59,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:59,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:05:59,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:59,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:05:59,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:05:59,303 INFO L87 Difference]: Start difference. First operand 57 states and 67 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 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) [2024-11-27 20:05:59,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:59,482 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2024-11-27 20:05:59,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:05:59,483 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 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 [2024-11-27 20:05:59,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:59,484 INFO L225 Difference]: With dead ends: 62 [2024-11-27 20:05:59,484 INFO L226 Difference]: Without dead ends: 61 [2024-11-27 20:05:59,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:05:59,485 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 25 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:59,486 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 189 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:05:59,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-27 20:05:59,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2024-11-27 20:05:59,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.255813953488372) internal successors, (54), 48 states have internal predecessors, (54), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 20:05:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2024-11-27 20:05:59,502 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 40 [2024-11-27 20:05:59,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:59,502 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2024-11-27 20:05:59,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:05:59,503 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2024-11-27 20:05:59,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 20:05:59,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:59,504 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:59,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:05:59,505 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:05:59,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:59,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1047069354, now seen corresponding path program 1 times [2024-11-27 20:05:59,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:59,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833433746] [2024-11-27 20:05:59,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:59,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:59,668 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:05:59,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:59,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833433746] [2024-11-27 20:05:59,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833433746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:59,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:59,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:59,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177654682] [2024-11-27 20:05:59,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:59,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:05:59,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:59,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:05:59,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:59,670 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:05:59,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:05:59,742 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2024-11-27 20:05:59,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:05:59,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 43 [2024-11-27 20:05:59,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:05:59,745 INFO L225 Difference]: With dead ends: 66 [2024-11-27 20:05:59,745 INFO L226 Difference]: Without dead ends: 33 [2024-11-27 20:05:59,745 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:05:59,746 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 5 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:05:59,746 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 103 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 20:05:59,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-27 20:05:59,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-27 20:05:59,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 25 states have (on average 1.0) internal successors, (25), 25 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 20:05:59,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2024-11-27 20:05:59,760 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 43 [2024-11-27 20:05:59,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:05:59,760 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2024-11-27 20:05:59,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:05:59,761 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2024-11-27 20:05:59,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 20:05:59,763 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:05:59,764 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 20:05:59,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:05:59,764 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-27 20:05:59,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:59,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1900588349, now seen corresponding path program 1 times [2024-11-27 20:05:59,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:59,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718882271] [2024-11-27 20:05:59,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:59,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:00,054 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:06:00,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:06:00,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718882271] [2024-11-27 20:06:00,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718882271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:06:00,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160085347] [2024-11-27 20:06:00,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:06:00,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:06:00,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:06:00,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:06:00,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:06:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:06:00,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:06:00,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:06:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 20:06:00,268 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:06:00,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160085347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:06:00,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:06:00,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 11 [2024-11-27 20:06:00,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857618887] [2024-11-27 20:06:00,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:06:00,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:06:00,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:06:00,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:06:00,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:06:00,273 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:06:00,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:06:00,509 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2024-11-27 20:06:00,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 20:06:00,510 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2024-11-27 20:06:00,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:06:00,511 INFO L225 Difference]: With dead ends: 33 [2024-11-27 20:06:00,511 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:06:00,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:06:00,513 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 35 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:06:00,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 85 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:06:00,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:06:00,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:06:00,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:06:00,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:06:00,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2024-11-27 20:06:00,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:06:00,515 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:06:00,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.125) internal successors, (25), 9 states have internal predecessors, (25), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-27 20:06:00,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:06:00,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:06:00,519 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-27 20:06:00,519 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-27 20:06:00,519 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-27 20:06:00,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-27 20:06:00,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-27 20:06:00,520 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-27 20:06:00,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:06:00,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-27 20:06:00,725 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:06:00,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:06:00,856 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:06:00,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:06:00 BoogieIcfgContainer [2024-11-27 20:06:00,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:06:00,875 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:06:00,875 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:06:00,875 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:06:00,876 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:05:56" (3/4) ... [2024-11-27 20:06:00,879 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:06:00,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-27 20:06:00,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-27 20:06:00,894 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-27 20:06:00,894 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-27 20:06:00,894 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:06:00,895 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:06:00,895 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:06:00,999 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:06:00,999 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:06:00,999 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:06:01,000 INFO L158 Benchmark]: Toolchain (without parser) took 5831.73ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 106.6MB in the beginning and 297.8MB in the end (delta: -191.1MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2024-11-27 20:06:01,001 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 167.8MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:06:01,001 INFO L158 Benchmark]: CACSL2BoogieTranslator took 365.16ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 95.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:06:01,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.44ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 93.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:06:01,002 INFO L158 Benchmark]: Boogie Preprocessor took 65.55ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 92.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:06:01,003 INFO L158 Benchmark]: RCFGBuilder took 445.83ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 79.8MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:06:01,003 INFO L158 Benchmark]: TraceAbstraction took 4770.41ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 79.1MB in the beginning and 302.8MB in the end (delta: -223.6MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2024-11-27 20:06:01,003 INFO L158 Benchmark]: Witness Printer took 124.35ms. Allocated memory is still 335.5MB. Free memory was 302.8MB in the beginning and 297.8MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:06:01,007 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 167.8MB. Free memory is still 105.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 365.16ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 95.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.44ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 93.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 65.55ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 92.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 445.83ms. Allocated memory is still 142.6MB. Free memory was 92.6MB in the beginning and 79.8MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4770.41ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 79.1MB in the beginning and 302.8MB in the end (delta: -223.6MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. * Witness Printer took 124.35ms. Allocated memory is still 335.5MB. Free memory was 302.8MB in the beginning and 297.8MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 47 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 126 mSDsluCounter, 1074 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 764 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 411 IncrementalHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 310 mSDtfsCounter, 411 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=6, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 14 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 356 NumberOfCodeBlocks, 356 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 346 ConstructedInterpolants, 0 QuantifiedInterpolants, 574 SizeOfPredicates, 5 NumberOfNonLiveVariables, 202 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 239/248 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((2 <= counter) && (counter <= 3)) || (counter == 0)) - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (counter == 1) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (counter == 2) RESULT: Ultimate proved your program to be correct! [2024-11-27 20:06:01,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a92ea12c-af5c-4ef8-8d58-aab93edbff13/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE