./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/ps4.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_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/ps4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1 --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 197bb91209feafbd50d8f722faabb2ddec80478a21cb1768541ed232586540b8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 13:06:33,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 13:06:33,284 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-12-02 13:06:33,289 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 13:06:33,289 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 13:06:33,311 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 13:06:33,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 13:06:33,312 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 13:06:33,312 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 13:06:33,312 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 13:06:33,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 13:06:33,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 13:06:33,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 13:06:33,313 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 13:06:33,313 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 13:06:33,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 13:06:33,313 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 13:06:33,313 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 13:06:33,313 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 13:06:33,313 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 13:06:33,313 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 13:06:33,313 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 13:06:33,314 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:06:33,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:06:33,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 13:06:33,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 13:06:33,315 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 13:06:33,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 13:06:33,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:06:33,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 13:06:33,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 13:06:33,315 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 13:06:33,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 13:06:33,315 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 13:06:33,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 13:06:33,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 13:06:33,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 13:06:33,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 13:06:33,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 13:06:33,316 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_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1 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 -> 197bb91209feafbd50d8f722faabb2ddec80478a21cb1768541ed232586540b8 [2024-12-02 13:06:33,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 13:06:33,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 13:06:33,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 13:06:33,548 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 13:06:33,549 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 13:06:33,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/nla-digbench/ps4.c [2024-12-02 13:06:36,166 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/data/c6714a80e/7900413f59b349e586283d907ea63e03/FLAG7b17c201e [2024-12-02 13:06:36,351 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 13:06:36,352 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/sv-benchmarks/c/nla-digbench/ps4.c [2024-12-02 13:06:36,357 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/data/c6714a80e/7900413f59b349e586283d907ea63e03/FLAG7b17c201e [2024-12-02 13:06:36,370 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/data/c6714a80e/7900413f59b349e586283d907ea63e03 [2024-12-02 13:06:36,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 13:06:36,374 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 13:06:36,375 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 13:06:36,375 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 13:06:36,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 13:06:36,378 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@573580c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36, skipping insertion in model container [2024-12-02 13:06:36,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,389 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 13:06:36,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:06:36,512 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 13:06:36,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 13:06:36,538 INFO L204 MainTranslator]: Completed translation [2024-12-02 13:06:36,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36 WrapperNode [2024-12-02 13:06:36,538 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 13:06:36,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 13:06:36,539 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 13:06:36,539 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 13:06:36,544 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,548 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,567 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2024-12-02 13:06:36,567 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 13:06:36,568 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 13:06:36,568 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 13:06:36,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 13:06:36,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,576 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,586 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 0 writes are split as follows [0, 0]. [2024-12-02 13:06:36,587 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,587 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,590 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,590 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 13:06:36,598 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 13:06:36,598 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 13:06:36,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 13:06:36,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (1/1) ... [2024-12-02 13:06:36,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 13:06:36,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:36,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 13:06:36,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 13:06:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 13:06:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 13:06:36,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 13:06:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 13:06:36,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 13:06:36,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-02 13:06:36,647 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-02 13:06:36,690 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 13:06:36,691 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 13:06:37,042 INFO L? ?]: Removed 73 outVars from TransFormulas that were not future-live. [2024-12-02 13:06:37,042 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 13:06:37,054 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 13:06:37,054 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 13:06:37,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:06:37 BoogieIcfgContainer [2024-12-02 13:06:37,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 13:06:37,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 13:06:37,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 13:06:37,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 13:06:37,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:06:36" (1/3) ... [2024-12-02 13:06:37,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7875719f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:06:37, skipping insertion in model container [2024-12-02 13:06:37,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:06:36" (2/3) ... [2024-12-02 13:06:37,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7875719f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:06:37, skipping insertion in model container [2024-12-02 13:06:37,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:06:37" (3/3) ... [2024-12-02 13:06:37,064 INFO L128 eAbstractionObserver]: Analyzing ICFG ps4.c [2024-12-02 13:06:37,077 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 13:06:37,079 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps4.c that has 2 procedures, 136 locations, 1 initial locations, 1 loop locations, and 60 error locations. [2024-12-02 13:06:37,130 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 13:06:37,141 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;@7cc663c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 13:06:37,141 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-12-02 13:06:37,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 136 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 131 states have internal predecessors, (135), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:06:37,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-02 13:06:37,149 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:37,150 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-12-02 13:06:37,150 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:37,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:37,155 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-12-02 13:06:37,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:37,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552738124] [2024-12-02 13:06:37,163 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:37,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:06:37,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:37,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552738124] [2024-12-02 13:06:37,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552738124] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:06:37,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:06:37,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:06:37,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942685286] [2024-12-02 13:06:37,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:06:37,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:06:37,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:37,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:06:37,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:06:37,318 INFO L87 Difference]: Start difference. First operand has 136 states, 71 states have (on average 1.9014084507042253) internal successors, (135), 131 states have internal predecessors, (135), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-12-02 13:06:37,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:37,487 INFO L93 Difference]: Finished difference Result 357 states and 417 transitions. [2024-12-02 13:06:37,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:06:37,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-12-02 13:06:37,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:37,497 INFO L225 Difference]: With dead ends: 357 [2024-12-02 13:06:37,497 INFO L226 Difference]: Without dead ends: 213 [2024-12-02 13:06:37,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:06:37,503 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 94 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:37,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 190 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:06:37,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-12-02 13:06:37,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 171. [2024-12-02 13:06:37,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 116 states have (on average 1.6982758620689655) internal successors, (197), 165 states have internal predecessors, (197), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:37,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 205 transitions. [2024-12-02 13:06:37,549 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 205 transitions. Word has length 3 [2024-12-02 13:06:37,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:37,549 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 205 transitions. [2024-12-02 13:06:37,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-12-02 13:06:37,550 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 205 transitions. [2024-12-02 13:06:37,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-02 13:06:37,550 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:37,550 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-12-02 13:06:37,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 13:06:37,550 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:37,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:37,551 INFO L85 PathProgramCache]: Analyzing trace with hash 889722182, now seen corresponding path program 1 times [2024-12-02 13:06:37,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:37,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880091561] [2024-12-02 13:06:37,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:37,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:37,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:37,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [867906701] [2024-12-02 13:06:37,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:37,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:37,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:37,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:37,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 13:06:37,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:37,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 13:06:37,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:37,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:06:37,639 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:06:37,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:37,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880091561] [2024-12-02 13:06:37,640 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:37,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867906701] [2024-12-02 13:06:37,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867906701] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:06:37,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:06:37,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:06:37,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072535643] [2024-12-02 13:06:37,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:06:37,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:06:37,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:37,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:06:37,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:06:37,642 INFO L87 Difference]: Start difference. First operand 171 states and 205 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-12-02 13:06:37,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:37,885 INFO L93 Difference]: Finished difference Result 204 states and 213 transitions. [2024-12-02 13:06:37,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:06:37,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-12-02 13:06:37,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:37,887 INFO L225 Difference]: With dead ends: 204 [2024-12-02 13:06:37,887 INFO L226 Difference]: Without dead ends: 177 [2024-12-02 13:06:37,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:06:37,888 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 52 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:37,889 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 90 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:37,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-12-02 13:06:37,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2024-12-02 13:06:37,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 120 states have (on average 1.4833333333333334) internal successors, (178), 169 states have internal predecessors, (178), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:37,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 186 transitions. [2024-12-02 13:06:37,900 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 186 transitions. Word has length 6 [2024-12-02 13:06:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:37,901 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 186 transitions. [2024-12-02 13:06:37,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-12-02 13:06:37,901 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 186 transitions. [2024-12-02 13:06:37,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 13:06:37,901 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:37,901 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:37,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 13:06:38,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:38,102 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:38,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:38,103 INFO L85 PathProgramCache]: Analyzing trace with hash 610992, now seen corresponding path program 1 times [2024-12-02 13:06:38,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:38,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087034791] [2024-12-02 13:06:38,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:38,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:38,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:38,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:06:38,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:38,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087034791] [2024-12-02 13:06:38,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087034791] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:06:38,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:06:38,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:06:38,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570956545] [2024-12-02 13:06:38,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:06:38,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:06:38,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:38,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:06:38,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:06:38,186 INFO L87 Difference]: Start difference. First operand 175 states and 186 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-12-02 13:06:38,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:38,441 INFO L93 Difference]: Finished difference Result 188 states and 197 transitions. [2024-12-02 13:06:38,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:06:38,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-12-02 13:06:38,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:38,442 INFO L225 Difference]: With dead ends: 188 [2024-12-02 13:06:38,442 INFO L226 Difference]: Without dead ends: 186 [2024-12-02 13:06:38,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:06:38,443 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 63 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:38,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 160 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-12-02 13:06:38,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 175. [2024-12-02 13:06:38,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 120 states have (on average 1.4666666666666666) internal successors, (176), 169 states have internal predecessors, (176), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:38,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 184 transitions. [2024-12-02 13:06:38,454 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 184 transitions. Word has length 11 [2024-12-02 13:06:38,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:38,454 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 184 transitions. [2024-12-02 13:06:38,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2024-12-02 13:06:38,454 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 184 transitions. [2024-12-02 13:06:38,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 13:06:38,454 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:38,454 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:38,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 13:06:38,455 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:38,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:38,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1529131192, now seen corresponding path program 1 times [2024-12-02 13:06:38,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:38,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340031928] [2024-12-02 13:06:38,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:38,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:38,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1340645090] [2024-12-02 13:06:38,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:38,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:38,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:38,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:38,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 13:06:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:38,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 13:06:38,503 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:06:38,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:06:38,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:38,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340031928] [2024-12-02 13:06:38,605 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:38,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340645090] [2024-12-02 13:06:38,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340645090] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:06:38,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:06:38,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:06:38,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110796830] [2024-12-02 13:06:38,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:06:38,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:06:38,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:38,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:06:38,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:06:38,607 INFO L87 Difference]: Start difference. First operand 175 states and 184 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-12-02 13:06:38,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:38,783 INFO L93 Difference]: Finished difference Result 181 states and 184 transitions. [2024-12-02 13:06:38,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:06:38,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-12-02 13:06:38,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:38,784 INFO L225 Difference]: With dead ends: 181 [2024-12-02 13:06:38,784 INFO L226 Difference]: Without dead ends: 149 [2024-12-02 13:06:38,784 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:06:38,785 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 39 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:38,785 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 84 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:38,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-12-02 13:06:38,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2024-12-02 13:06:38,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 93 states have (on average 1.5591397849462365) internal successors, (145), 142 states have internal predecessors, (145), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:06:38,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 151 transitions. [2024-12-02 13:06:38,793 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 151 transitions. Word has length 19 [2024-12-02 13:06:38,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:38,793 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 151 transitions. [2024-12-02 13:06:38,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2024-12-02 13:06:38,793 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 151 transitions. [2024-12-02 13:06:38,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-12-02 13:06:38,794 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:38,794 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:38,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 13:06:38,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:38,995 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:38,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:38,995 INFO L85 PathProgramCache]: Analyzing trace with hash -387593135, now seen corresponding path program 1 times [2024-12-02 13:06:38,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:38,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680232917] [2024-12-02 13:06:38,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:38,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:39,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:06:39,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:39,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680232917] [2024-12-02 13:06:39,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680232917] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:06:39,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:06:39,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:06:39,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306966753] [2024-12-02 13:06:39,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:06:39,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:06:39,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:39,074 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:06:39,074 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:06:39,074 INFO L87 Difference]: Start difference. First operand 147 states and 151 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:39,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:39,087 INFO L93 Difference]: Finished difference Result 149 states and 151 transitions. [2024-12-02 13:06:39,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:06:39,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-12-02 13:06:39,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:39,089 INFO L225 Difference]: With dead ends: 149 [2024-12-02 13:06:39,089 INFO L226 Difference]: Without dead ends: 147 [2024-12-02 13:06:39,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:06:39,090 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 1 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:39,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 230 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 13:06:39,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-12-02 13:06:39,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-12-02 13:06:39,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 93 states have (on average 1.5376344086021505) internal successors, (143), 142 states have internal predecessors, (143), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:06:39,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 149 transitions. [2024-12-02 13:06:39,097 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 149 transitions. Word has length 31 [2024-12-02 13:06:39,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:39,098 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 149 transitions. [2024-12-02 13:06:39,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:39,099 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 149 transitions. [2024-12-02 13:06:39,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-12-02 13:06:39,099 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:39,099 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:39,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 13:06:39,100 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:39,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:39,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1972633679, now seen corresponding path program 1 times [2024-12-02 13:06:39,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:39,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933855294] [2024-12-02 13:06:39,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:39,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:39,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1409052736] [2024-12-02 13:06:39,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:39,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:39,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:39,130 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:39,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 13:06:39,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:39,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:06:39,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:39,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:06:39,233 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:06:39,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:39,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933855294] [2024-12-02 13:06:39,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:39,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409052736] [2024-12-02 13:06:39,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409052736] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:06:39,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:06:39,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:06:39,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644953167] [2024-12-02 13:06:39,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:06:39,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:06:39,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:39,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:06:39,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:06:39,235 INFO L87 Difference]: Start difference. First operand 147 states and 149 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:39,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:39,441 INFO L93 Difference]: Finished difference Result 242 states and 264 transitions. [2024-12-02 13:06:39,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:06:39,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2024-12-02 13:06:39,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:39,443 INFO L225 Difference]: With dead ends: 242 [2024-12-02 13:06:39,443 INFO L226 Difference]: Without dead ends: 216 [2024-12-02 13:06:39,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:06:39,444 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 65 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:39,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 99 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:39,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-12-02 13:06:39,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 208. [2024-12-02 13:06:39,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 152 states have (on average 1.480263157894737) internal successors, (225), 201 states have internal predecessors, (225), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:06:39,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 235 transitions. [2024-12-02 13:06:39,452 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 235 transitions. Word has length 36 [2024-12-02 13:06:39,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:39,453 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 235 transitions. [2024-12-02 13:06:39,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:39,453 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 235 transitions. [2024-12-02 13:06:39,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-02 13:06:39,454 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:39,454 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:39,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 13:06:39,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-12-02 13:06:39,654 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:39,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:39,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1307683417, now seen corresponding path program 1 times [2024-12-02 13:06:39,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:39,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419659885] [2024-12-02 13:06:39,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:39,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:39,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:39,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:06:39,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:39,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419659885] [2024-12-02 13:06:39,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419659885] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:06:39,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:06:39,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:06:39,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942524248] [2024-12-02 13:06:39,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:06:39,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:06:39,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:39,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:06:39,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:06:39,739 INFO L87 Difference]: Start difference. First operand 208 states and 235 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:39,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:39,811 INFO L93 Difference]: Finished difference Result 209 states and 235 transitions. [2024-12-02 13:06:39,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:06:39,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2024-12-02 13:06:39,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:39,812 INFO L225 Difference]: With dead ends: 209 [2024-12-02 13:06:39,812 INFO L226 Difference]: Without dead ends: 208 [2024-12-02 13:06:39,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:06:39,813 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 30 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:39,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 173 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:06:39,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-12-02 13:06:39,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-12-02 13:06:39,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 152 states have (on average 1.4736842105263157) internal successors, (224), 201 states have internal predecessors, (224), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:06:39,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 234 transitions. [2024-12-02 13:06:39,822 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 234 transitions. Word has length 39 [2024-12-02 13:06:39,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:39,822 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 234 transitions. [2024-12-02 13:06:39,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:39,822 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 234 transitions. [2024-12-02 13:06:39,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 13:06:39,823 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:39,823 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:39,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 13:06:39,823 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:39,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:39,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1883480373, now seen corresponding path program 1 times [2024-12-02 13:06:39,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:39,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416300799] [2024-12-02 13:06:39,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:39,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:39,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:06:39,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:39,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416300799] [2024-12-02 13:06:39,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416300799] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:06:39,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:06:39,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 13:06:39,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029220656] [2024-12-02 13:06:39,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:06:39,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 13:06:39,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:39,896 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 13:06:39,896 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:06:39,896 INFO L87 Difference]: Start difference. First operand 208 states and 234 transitions. Second operand has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:40,057 INFO L93 Difference]: Finished difference Result 209 states and 234 transitions. [2024-12-02 13:06:40,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 13:06:40,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2024-12-02 13:06:40,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:40,058 INFO L225 Difference]: With dead ends: 209 [2024-12-02 13:06:40,058 INFO L226 Difference]: Without dead ends: 208 [2024-12-02 13:06:40,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 13:06:40,059 INFO L435 NwaCegarLoop]: 94 mSDtfsCounter, 26 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:40,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 192 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:40,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-12-02 13:06:40,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-12-02 13:06:40,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 152 states have (on average 1.4671052631578947) internal successors, (223), 201 states have internal predecessors, (223), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:06:40,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 233 transitions. [2024-12-02 13:06:40,067 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 233 transitions. Word has length 40 [2024-12-02 13:06:40,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:40,067 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 233 transitions. [2024-12-02 13:06:40,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.666666666666666) internal successors, (38), 4 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:40,067 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 233 transitions. [2024-12-02 13:06:40,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-12-02 13:06:40,068 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:40,068 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:40,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 13:06:40,068 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:40,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:40,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1741650539, now seen corresponding path program 1 times [2024-12-02 13:06:40,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:40,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641285742] [2024-12-02 13:06:40,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:40,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:40,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565333316] [2024-12-02 13:06:40,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:40,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:40,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:40,086 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:40,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 13:06:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:40,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 13:06:40,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:06:40,296 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:40,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:06:40,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:40,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641285742] [2024-12-02 13:06:40,432 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:40,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565333316] [2024-12-02 13:06:40,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565333316] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:06:40,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:06:40,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-12-02 13:06:40,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059310050] [2024-12-02 13:06:40,433 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:40,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:06:40,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:40,434 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:06:40,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:06:40,434 INFO L87 Difference]: Start difference. First operand 208 states and 233 transitions. Second operand has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 8 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 13:06:40,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:40,957 INFO L93 Difference]: Finished difference Result 233 states and 247 transitions. [2024-12-02 13:06:40,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:06:40,957 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 8 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2024-12-02 13:06:40,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:40,959 INFO L225 Difference]: With dead ends: 233 [2024-12-02 13:06:40,959 INFO L226 Difference]: Without dead ends: 220 [2024-12-02 13:06:40,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:06:40,959 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 344 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:40,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 69 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:06:40,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-12-02 13:06:40,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 209. [2024-12-02 13:06:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 156 states have (on average 1.3846153846153846) internal successors, (216), 202 states have internal predecessors, (216), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:06:40,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 226 transitions. [2024-12-02 13:06:40,968 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 226 transitions. Word has length 41 [2024-12-02 13:06:40,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:40,968 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 226 transitions. [2024-12-02 13:06:40,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.571428571428571) internal successors, (74), 8 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 13:06:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 226 transitions. [2024-12-02 13:06:40,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-12-02 13:06:40,969 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:40,969 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:40,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 13:06:41,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:41,170 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:41,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:41,171 INFO L85 PathProgramCache]: Analyzing trace with hash -226220387, now seen corresponding path program 1 times [2024-12-02 13:06:41,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:41,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122825747] [2024-12-02 13:06:41,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:41,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:41,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [702496859] [2024-12-02 13:06:41,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:41,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:41,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:41,189 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:41,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 13:06:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:41,229 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 13:06:41,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:41,430 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 13:06:41,430 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 13:06:41,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:41,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122825747] [2024-12-02 13:06:41,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:41,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702496859] [2024-12-02 13:06:41,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702496859] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:06:41,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:06:41,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 13:06:41,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737367211] [2024-12-02 13:06:41,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:06:41,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:06:41,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:41,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:06:41,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:06:41,431 INFO L87 Difference]: Start difference. First operand 209 states and 226 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:41,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:41,621 INFO L93 Difference]: Finished difference Result 209 states and 226 transitions. [2024-12-02 13:06:41,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:06:41,622 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2024-12-02 13:06:41,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:41,623 INFO L225 Difference]: With dead ends: 209 [2024-12-02 13:06:41,623 INFO L226 Difference]: Without dead ends: 160 [2024-12-02 13:06:41,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 13:06:41,624 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 96 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:41,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 37 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:41,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-12-02 13:06:41,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2024-12-02 13:06:41,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 128 states have (on average 1.1875) internal successors, (152), 147 states have internal predecessors, (152), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:41,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 160 transitions. [2024-12-02 13:06:41,631 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 160 transitions. Word has length 49 [2024-12-02 13:06:41,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:41,631 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 160 transitions. [2024-12-02 13:06:41,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 160 transitions. [2024-12-02 13:06:41,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-02 13:06:41,632 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:41,632 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:41,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 13:06:41,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 13:06:41,833 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:41,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:41,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1772853353, now seen corresponding path program 1 times [2024-12-02 13:06:41,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:41,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121425010] [2024-12-02 13:06:41,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:41,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:41,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950027943] [2024-12-02 13:06:41,849 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:41,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:41,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:41,851 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:41,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 13:06:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:41,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 13:06:41,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:42,090 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:06:42,090 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:42,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:42,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121425010] [2024-12-02 13:06:42,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:42,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950027943] [2024-12-02 13:06:42,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950027943] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:06:42,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:06:42,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-12-02 13:06:42,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91673573] [2024-12-02 13:06:42,297 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:42,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:06:42,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:42,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:06:42,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:06:42,298 INFO L87 Difference]: Start difference. First operand 153 states and 160 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 13:06:42,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:42,477 INFO L93 Difference]: Finished difference Result 153 states and 160 transitions. [2024-12-02 13:06:42,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:06:42,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 69 [2024-12-02 13:06:42,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:42,478 INFO L225 Difference]: With dead ends: 153 [2024-12-02 13:06:42,478 INFO L226 Difference]: Without dead ends: 151 [2024-12-02 13:06:42,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:06:42,479 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 44 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:42,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 47 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:42,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-12-02 13:06:42,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-12-02 13:06:42,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 128 states have (on average 1.1640625) internal successors, (149), 145 states have internal predecessors, (149), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:42,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 157 transitions. [2024-12-02 13:06:42,484 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 157 transitions. Word has length 69 [2024-12-02 13:06:42,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:42,484 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 157 transitions. [2024-12-02 13:06:42,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 states have internal predecessors, (62), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 13:06:42,485 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 157 transitions. [2024-12-02 13:06:42,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-02 13:06:42,485 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:42,485 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:42,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 13:06:42,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:42,686 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:42,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:42,686 INFO L85 PathProgramCache]: Analyzing trace with hash 876121022, now seen corresponding path program 1 times [2024-12-02 13:06:42,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:42,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863990087] [2024-12-02 13:06:42,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:42,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:42,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1487331560] [2024-12-02 13:06:42,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:42,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:42,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:42,703 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:42,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 13:06:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:42,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:06:42,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:06:42,955 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:43,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:43,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863990087] [2024-12-02 13:06:43,024 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:43,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487331560] [2024-12-02 13:06:43,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487331560] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:06:43,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:06:43,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-12-02 13:06:43,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600309928] [2024-12-02 13:06:43,025 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:43,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 13:06:43,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:43,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 13:06:43,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:06:43,026 INFO L87 Difference]: Start difference. First operand 151 states and 157 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 13:06:43,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:43,277 INFO L93 Difference]: Finished difference Result 156 states and 160 transitions. [2024-12-02 13:06:43,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:06:43,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 70 [2024-12-02 13:06:43,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:43,278 INFO L225 Difference]: With dead ends: 156 [2024-12-02 13:06:43,278 INFO L226 Difference]: Without dead ends: 152 [2024-12-02 13:06:43,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:06:43,279 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 6 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:43,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 99 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:43,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-12-02 13:06:43,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-12-02 13:06:43,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 129 states have (on average 1.1472868217054264) internal successors, (148), 146 states have internal predecessors, (148), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:43,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 156 transitions. [2024-12-02 13:06:43,284 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 156 transitions. Word has length 70 [2024-12-02 13:06:43,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:43,284 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 156 transitions. [2024-12-02 13:06:43,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 13:06:43,284 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 156 transitions. [2024-12-02 13:06:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-02 13:06:43,285 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:43,285 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:43,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 13:06:43,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:43,486 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:43,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:43,486 INFO L85 PathProgramCache]: Analyzing trace with hash 5226843, now seen corresponding path program 1 times [2024-12-02 13:06:43,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:43,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426797236] [2024-12-02 13:06:43,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:43,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:43,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558238717] [2024-12-02 13:06:43,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:43,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:43,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:43,502 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:43,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 13:06:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:43,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 13:06:43,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:06:43,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:43,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:43,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426797236] [2024-12-02 13:06:43,873 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:43,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558238717] [2024-12-02 13:06:43,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558238717] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:06:43,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:06:43,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-12-02 13:06:43,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887715789] [2024-12-02 13:06:43,873 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:43,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 13:06:43,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:43,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 13:06:43,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:06:43,875 INFO L87 Difference]: Start difference. First operand 152 states and 156 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 13:06:44,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:44,082 INFO L93 Difference]: Finished difference Result 155 states and 158 transitions. [2024-12-02 13:06:44,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 13:06:44,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2024-12-02 13:06:44,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:44,083 INFO L225 Difference]: With dead ends: 155 [2024-12-02 13:06:44,083 INFO L226 Difference]: Without dead ends: 149 [2024-12-02 13:06:44,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 13:06:44,084 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 6 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:44,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 106 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:44,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-12-02 13:06:44,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 147. [2024-12-02 13:06:44,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 124 states have (on average 1.1451612903225807) internal successors, (142), 141 states have internal predecessors, (142), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:44,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 150 transitions. [2024-12-02 13:06:44,089 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 150 transitions. Word has length 73 [2024-12-02 13:06:44,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:44,089 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 150 transitions. [2024-12-02 13:06:44,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 13:06:44,090 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 150 transitions. [2024-12-02 13:06:44,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-02 13:06:44,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:44,091 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:44,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 13:06:44,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:44,291 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:44,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:44,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1256620132, now seen corresponding path program 1 times [2024-12-02 13:06:44,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:44,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701334365] [2024-12-02 13:06:44,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:44,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:44,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:44,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1001506192] [2024-12-02 13:06:44,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:44,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:44,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:44,312 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:44,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 13:06:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:44,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 13:06:44,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:44,435 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:06:44,435 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:44,587 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:06:44,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:44,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701334365] [2024-12-02 13:06:44,587 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:44,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001506192] [2024-12-02 13:06:44,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001506192] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:06:44,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:06:44,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-12-02 13:06:44,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646544078] [2024-12-02 13:06:44,587 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:44,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:06:44,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:44,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:06:44,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 13:06:44,589 INFO L87 Difference]: Start difference. First operand 147 states and 150 transitions. Second operand has 8 states, 7 states have (on average 18.571428571428573) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:44,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:44,879 INFO L93 Difference]: Finished difference Result 222 states and 241 transitions. [2024-12-02 13:06:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 13:06:44,879 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.571428571428573) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 74 [2024-12-02 13:06:44,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:44,880 INFO L225 Difference]: With dead ends: 222 [2024-12-02 13:06:44,880 INFO L226 Difference]: Without dead ends: 217 [2024-12-02 13:06:44,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:06:44,881 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 257 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:44,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 122 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:44,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-12-02 13:06:44,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 161. [2024-12-02 13:06:44,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 140 states have (on average 1.1285714285714286) internal successors, (158), 155 states have internal predecessors, (158), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:44,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 166 transitions. [2024-12-02 13:06:44,888 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 166 transitions. Word has length 74 [2024-12-02 13:06:44,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:44,888 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 166 transitions. [2024-12-02 13:06:44,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.571428571428573) internal successors, (130), 8 states have internal predecessors, (130), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:44,889 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 166 transitions. [2024-12-02 13:06:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-12-02 13:06:44,889 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:44,889 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-12-02 13:06:44,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 13:06:45,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:45,090 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:45,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:45,090 INFO L85 PathProgramCache]: Analyzing trace with hash 2035847272, now seen corresponding path program 1 times [2024-12-02 13:06:45,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:45,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327148981] [2024-12-02 13:06:45,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:45,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:45,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [746278645] [2024-12-02 13:06:45,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:45,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:45,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:45,105 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:45,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 13:06:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:45,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 13:06:45,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:45,360 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:06:45,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:45,761 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:06:45,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:45,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327148981] [2024-12-02 13:06:45,761 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:45,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746278645] [2024-12-02 13:06:45,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746278645] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:06:45,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:06:45,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2024-12-02 13:06:45,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156320118] [2024-12-02 13:06:45,762 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:45,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:06:45,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:45,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:06:45,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:06:45,763 INFO L87 Difference]: Start difference. First operand 161 states and 166 transitions. Second operand has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:51,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 13:06:52,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:52,243 INFO L93 Difference]: Finished difference Result 219 states and 239 transitions. [2024-12-02 13:06:52,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:06:52,243 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 78 [2024-12-02 13:06:52,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:52,244 INFO L225 Difference]: With dead ends: 219 [2024-12-02 13:06:52,244 INFO L226 Difference]: Without dead ends: 218 [2024-12-02 13:06:52,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:06:52,245 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 222 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:52,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 83 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 599 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2024-12-02 13:06:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-12-02 13:06:52,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 160. [2024-12-02 13:06:52,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 140 states have (on average 1.1142857142857143) internal successors, (156), 154 states have internal predecessors, (156), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:52,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 164 transitions. [2024-12-02 13:06:52,253 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 164 transitions. Word has length 78 [2024-12-02 13:06:52,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:52,253 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 164 transitions. [2024-12-02 13:06:52,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.8) internal successors, (138), 11 states have internal predecessors, (138), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:52,254 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 164 transitions. [2024-12-02 13:06:52,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-12-02 13:06:52,259 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:52,259 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-12-02 13:06:52,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 13:06:52,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 13:06:52,460 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:52,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:52,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2055857238, now seen corresponding path program 1 times [2024-12-02 13:06:52,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:52,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837096401] [2024-12-02 13:06:52,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:52,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:52,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:52,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754899038] [2024-12-02 13:06:52,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:52,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:52,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:52,477 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:52,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 13:06:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:52,523 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 13:06:52,524 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:06:52,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:52,883 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 13:06:52,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:52,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837096401] [2024-12-02 13:06:52,883 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:52,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754899038] [2024-12-02 13:06:52,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754899038] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:06:52,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:06:52,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-12-02 13:06:52,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188696490] [2024-12-02 13:06:52,884 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:52,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 13:06:52,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:52,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 13:06:52,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:06:52,885 INFO L87 Difference]: Start difference. First operand 160 states and 164 transitions. Second operand has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:53,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:53,497 INFO L93 Difference]: Finished difference Result 287 states and 316 transitions. [2024-12-02 13:06:53,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:06:53,498 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 80 [2024-12-02 13:06:53,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:53,499 INFO L225 Difference]: With dead ends: 287 [2024-12-02 13:06:53,499 INFO L226 Difference]: Without dead ends: 209 [2024-12-02 13:06:53,499 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:06:53,500 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 350 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:53,500 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 131 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:06:53,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-12-02 13:06:53,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 192. [2024-12-02 13:06:53,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 178 states have (on average 1.0842696629213484) internal successors, (193), 185 states have internal predecessors, (193), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:06:53,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 203 transitions. [2024-12-02 13:06:53,511 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 203 transitions. Word has length 80 [2024-12-02 13:06:53,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:53,511 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 203 transitions. [2024-12-02 13:06:53,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.909090909090908) internal successors, (142), 12 states have internal predecessors, (142), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:53,511 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 203 transitions. [2024-12-02 13:06:53,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 13:06:53,512 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:53,512 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-12-02 13:06:53,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 13:06:53,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 13:06:53,713 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:53,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:53,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1616830543, now seen corresponding path program 2 times [2024-12-02 13:06:53,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:53,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773360941] [2024-12-02 13:06:53,713 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:06:53,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:53,731 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:06:53,731 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:06:53,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984645118] [2024-12-02 13:06:53,732 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:06:53,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:53,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:53,733 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:53,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 13:06:53,787 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:06:53,787 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:06:53,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 13:06:53,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:54,093 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 13:06:54,093 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:54,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:54,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773360941] [2024-12-02 13:06:54,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:54,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984645118] [2024-12-02 13:06:54,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984645118] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:06:54,153 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:06:54,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-12-02 13:06:54,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81425031] [2024-12-02 13:06:54,153 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:54,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:06:54,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:54,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:06:54,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:06:54,154 INFO L87 Difference]: Start difference. First operand 192 states and 203 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:06:54,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:54,356 INFO L93 Difference]: Finished difference Result 201 states and 211 transitions. [2024-12-02 13:06:54,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 13:06:54,356 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 108 [2024-12-02 13:06:54,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:54,357 INFO L225 Difference]: With dead ends: 201 [2024-12-02 13:06:54,357 INFO L226 Difference]: Without dead ends: 197 [2024-12-02 13:06:54,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-12-02 13:06:54,358 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 23 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:54,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 73 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:54,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-12-02 13:06:54,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-12-02 13:06:54,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 183 states have (on average 1.0765027322404372) internal successors, (197), 190 states have internal predecessors, (197), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:06:54,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 207 transitions. [2024-12-02 13:06:54,370 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 207 transitions. Word has length 108 [2024-12-02 13:06:54,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:54,370 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 207 transitions. [2024-12-02 13:06:54,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:06:54,370 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 207 transitions. [2024-12-02 13:06:54,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 13:06:54,371 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:54,371 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:54,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 13:06:54,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 13:06:54,572 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:54,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:54,572 INFO L85 PathProgramCache]: Analyzing trace with hash 1059636360, now seen corresponding path program 2 times [2024-12-02 13:06:54,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:54,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28945916] [2024-12-02 13:06:54,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:06:54,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:54,593 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:06:54,593 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:06:54,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [186059469] [2024-12-02 13:06:54,594 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:06:54,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:54,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:54,596 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:54,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 13:06:54,658 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:06:54,659 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:06:54,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 13:06:54,661 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:55,004 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 13:06:55,004 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:55,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:55,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28945916] [2024-12-02 13:06:55,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:55,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186059469] [2024-12-02 13:06:55,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186059469] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:06:55,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:06:55,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-12-02 13:06:55,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141588335] [2024-12-02 13:06:55,270 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:55,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 13:06:55,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:55,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 13:06:55,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:06:55,271 INFO L87 Difference]: Start difference. First operand 197 states and 207 transitions. Second operand has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:06:55,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:55,497 INFO L93 Difference]: Finished difference Result 198 states and 207 transitions. [2024-12-02 13:06:55,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 13:06:55,497 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 111 [2024-12-02 13:06:55,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:55,498 INFO L225 Difference]: With dead ends: 198 [2024-12-02 13:06:55,498 INFO L226 Difference]: Without dead ends: 192 [2024-12-02 13:06:55,498 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:06:55,499 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 4 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:55,499 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 96 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:06:55,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-12-02 13:06:55,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2024-12-02 13:06:55,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 178 states have (on average 1.0730337078651686) internal successors, (191), 185 states have internal predecessors, (191), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:06:55,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 201 transitions. [2024-12-02 13:06:55,506 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 201 transitions. Word has length 111 [2024-12-02 13:06:55,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:55,506 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 201 transitions. [2024-12-02 13:06:55,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.142857142857142) internal successors, (99), 8 states have internal predecessors, (99), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 13:06:55,506 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 201 transitions. [2024-12-02 13:06:55,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-12-02 13:06:55,507 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:55,507 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-12-02 13:06:55,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 13:06:55,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 13:06:55,707 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:55,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:55,708 INFO L85 PathProgramCache]: Analyzing trace with hash -15529759, now seen corresponding path program 1 times [2024-12-02 13:06:55,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:55,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133781135] [2024-12-02 13:06:55,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:55,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:55,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-12-02 13:06:55,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:55,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133781135] [2024-12-02 13:06:55,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133781135] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 13:06:55,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 13:06:55,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 13:06:55,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87566267] [2024-12-02 13:06:55,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 13:06:55,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 13:06:55,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:55,771 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 13:06:55,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:06:55,772 INFO L87 Difference]: Start difference. First operand 192 states and 201 transitions. Second operand has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:55,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:55,860 INFO L93 Difference]: Finished difference Result 192 states and 201 transitions. [2024-12-02 13:06:55,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 13:06:55,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 122 [2024-12-02 13:06:55,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:55,862 INFO L225 Difference]: With dead ends: 192 [2024-12-02 13:06:55,862 INFO L226 Difference]: Without dead ends: 191 [2024-12-02 13:06:55,862 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 13:06:55,862 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 29 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:55,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 25 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 13:06:55,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-12-02 13:06:55,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-12-02 13:06:55,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 178 states have (on average 1.0617977528089888) internal successors, (189), 184 states have internal predecessors, (189), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:06:55,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 199 transitions. [2024-12-02 13:06:55,880 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 199 transitions. Word has length 122 [2024-12-02 13:06:55,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:55,880 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 199 transitions. [2024-12-02 13:06:55,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.5) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 13:06:55,880 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 199 transitions. [2024-12-02 13:06:55,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-12-02 13:06:55,881 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:55,881 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-12-02 13:06:55,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 13:06:55,882 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:55,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:55,882 INFO L85 PathProgramCache]: Analyzing trace with hash -2039194781, now seen corresponding path program 1 times [2024-12-02 13:06:55,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:55,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759203167] [2024-12-02 13:06:55,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:55,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:06:55,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926637655] [2024-12-02 13:06:55,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:06:55,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:55,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:55,903 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:55,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 13:06:55,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:06:55,960 INFO L256 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 13:06:55,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 13:06:56,085 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 13:06:56,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:56,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759203167] [2024-12-02 13:06:56,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:56,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926637655] [2024-12-02 13:06:56,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926637655] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:06:56,370 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:06:56,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-12-02 13:06:56,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699473101] [2024-12-02 13:06:56,371 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:56,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:06:56,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:56,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:06:56,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-12-02 13:06:56,372 INFO L87 Difference]: Start difference. First operand 191 states and 199 transitions. Second operand has 10 states, 9 states have (on average 24.444444444444443) internal successors, (220), 10 states have internal predecessors, (220), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 13:06:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:56,813 INFO L93 Difference]: Finished difference Result 332 states and 358 transitions. [2024-12-02 13:06:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:06:56,814 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 24.444444444444443) internal successors, (220), 10 states have internal predecessors, (220), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 124 [2024-12-02 13:06:56,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:56,815 INFO L225 Difference]: With dead ends: 332 [2024-12-02 13:06:56,816 INFO L226 Difference]: Without dead ends: 330 [2024-12-02 13:06:56,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:06:56,816 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 231 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:56,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 175 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:06:56,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2024-12-02 13:06:56,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 299. [2024-12-02 13:06:56,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 283 states have (on average 1.0636042402826855) internal successors, (301), 289 states have internal predecessors, (301), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 13:06:56,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 317 transitions. [2024-12-02 13:06:56,830 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 317 transitions. Word has length 124 [2024-12-02 13:06:56,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:56,830 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 317 transitions. [2024-12-02 13:06:56,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 24.444444444444443) internal successors, (220), 10 states have internal predecessors, (220), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 13:06:56,831 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 317 transitions. [2024-12-02 13:06:56,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 13:06:56,831 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:56,831 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-12-02 13:06:56,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 13:06:57,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:57,032 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:57,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:57,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1762777756, now seen corresponding path program 3 times [2024-12-02 13:06:57,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:57,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927432645] [2024-12-02 13:06:57,032 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:06:57,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:57,050 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-12-02 13:06:57,050 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:06:57,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [753802376] [2024-12-02 13:06:57,051 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:06:57,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:57,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:57,053 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:57,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 13:06:57,111 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-12-02 13:06:57,111 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:06:57,112 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 13:06:57,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 13:06:57,445 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:57,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:57,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927432645] [2024-12-02 13:06:57,489 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:57,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753802376] [2024-12-02 13:06:57,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753802376] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:06:57,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:06:57,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-12-02 13:06:57,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735339085] [2024-12-02 13:06:57,489 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:57,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:06:57,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:57,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:06:57,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:06:57,490 INFO L87 Difference]: Start difference. First operand 299 states and 317 transitions. Second operand has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:57,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:57,853 INFO L93 Difference]: Finished difference Result 308 states and 325 transitions. [2024-12-02 13:06:57,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:06:57,854 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 146 [2024-12-02 13:06:57,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:57,855 INFO L225 Difference]: With dead ends: 308 [2024-12-02 13:06:57,855 INFO L226 Difference]: Without dead ends: 304 [2024-12-02 13:06:57,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-12-02 13:06:57,856 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:57,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 135 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 13:06:57,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-12-02 13:06:57,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-12-02 13:06:57,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 288 states have (on average 1.0590277777777777) internal successors, (305), 294 states have internal predecessors, (305), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 13:06:57,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 321 transitions. [2024-12-02 13:06:57,875 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 321 transitions. Word has length 146 [2024-12-02 13:06:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:57,875 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 321 transitions. [2024-12-02 13:06:57,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.333333333333334) internal successors, (129), 10 states have internal predecessors, (129), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 321 transitions. [2024-12-02 13:06:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 13:06:57,876 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:57,876 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:06:57,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-12-02 13:06:58,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:58,076 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:58,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash -346882571, now seen corresponding path program 3 times [2024-12-02 13:06:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:58,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285773939] [2024-12-02 13:06:58,077 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:06:58,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:58,103 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-12-02 13:06:58,103 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:06:58,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [116178562] [2024-12-02 13:06:58,104 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:06:58,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:58,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:58,106 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:58,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-12-02 13:06:58,176 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-12-02 13:06:58,176 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:06:58,178 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 13:06:58,180 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:58,514 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 13:06:58,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:58,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:58,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285773939] [2024-12-02 13:06:58,647 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:58,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [116178562] [2024-12-02 13:06:58,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [116178562] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:06:58,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:06:58,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-12-02 13:06:58,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105018398] [2024-12-02 13:06:58,648 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:58,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 13:06:58,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:58,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 13:06:58,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:06:58,649 INFO L87 Difference]: Start difference. First operand 304 states and 321 transitions. Second operand has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:06:59,051 INFO L93 Difference]: Finished difference Result 305 states and 321 transitions. [2024-12-02 13:06:59,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:06:59,051 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 149 [2024-12-02 13:06:59,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:06:59,053 INFO L225 Difference]: With dead ends: 305 [2024-12-02 13:06:59,053 INFO L226 Difference]: Without dead ends: 299 [2024-12-02 13:06:59,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:06:59,054 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 1071 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:06:59,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 163 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1071 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:06:59,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-12-02 13:06:59,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-12-02 13:06:59,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 283 states have (on average 1.0565371024734982) internal successors, (299), 289 states have internal predecessors, (299), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 13:06:59,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 315 transitions. [2024-12-02 13:06:59,066 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 315 transitions. Word has length 149 [2024-12-02 13:06:59,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:06:59,066 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 315 transitions. [2024-12-02 13:06:59,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.666666666666666) internal successors, (132), 10 states have internal predecessors, (132), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 13:06:59,066 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 315 transitions. [2024-12-02 13:06:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-12-02 13:06:59,066 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:06:59,066 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-12-02 13:06:59,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-12-02 13:06:59,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 13:06:59,267 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:06:59,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:06:59,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1023167703, now seen corresponding path program 4 times [2024-12-02 13:06:59,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:06:59,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864430253] [2024-12-02 13:06:59,267 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 13:06:59,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:06:59,287 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 13:06:59,288 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:06:59,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [669057218] [2024-12-02 13:06:59,289 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 13:06:59,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:06:59,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:06:59,291 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:06:59,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-12-02 13:06:59,361 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 13:06:59,361 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:06:59,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 13:06:59,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:06:59,778 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 13:06:59,778 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:06:59,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:06:59,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864430253] [2024-12-02 13:06:59,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:06:59,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669057218] [2024-12-02 13:06:59,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669057218] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:06:59,816 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:06:59,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-12-02 13:06:59,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008262178] [2024-12-02 13:06:59,816 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:06:59,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 13:06:59,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:06:59,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 13:06:59,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:06:59,818 INFO L87 Difference]: Start difference. First operand 299 states and 315 transitions. Second operand has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:07:00,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:00,278 INFO L93 Difference]: Finished difference Result 308 states and 323 transitions. [2024-12-02 13:07:00,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 13:07:00,278 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 184 [2024-12-02 13:07:00,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:00,279 INFO L225 Difference]: With dead ends: 308 [2024-12-02 13:07:00,279 INFO L226 Difference]: Without dead ends: 304 [2024-12-02 13:07:00,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:07:00,280 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:00,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 178 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 13:07:00,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-12-02 13:07:00,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-12-02 13:07:00,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 288 states have (on average 1.0520833333333333) internal successors, (303), 294 states have internal predecessors, (303), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 13:07:00,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 319 transitions. [2024-12-02 13:07:00,290 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 319 transitions. Word has length 184 [2024-12-02 13:07:00,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:00,290 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 319 transitions. [2024-12-02 13:07:00,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.727272727272727) internal successors, (162), 12 states have internal predecessors, (162), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:07:00,290 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 319 transitions. [2024-12-02 13:07:00,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-12-02 13:07:00,291 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:00,291 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:00,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-12-02 13:07:00,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 13:07:00,492 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:00,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:00,492 INFO L85 PathProgramCache]: Analyzing trace with hash -193741406, now seen corresponding path program 4 times [2024-12-02 13:07:00,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:00,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381804992] [2024-12-02 13:07:00,492 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 13:07:00,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:00,515 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 13:07:00,515 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:00,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [566825023] [2024-12-02 13:07:00,516 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 13:07:00,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:00,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:00,519 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:00,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-12-02 13:07:00,582 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 13:07:00,582 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:00,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:07:00,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 13:07:00,964 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:01,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:01,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381804992] [2024-12-02 13:07:01,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:01,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566825023] [2024-12-02 13:07:01,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566825023] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:01,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:01,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-12-02 13:07:01,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880022053] [2024-12-02 13:07:01,254 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:01,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:07:01,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:01,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:07:01,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-12-02 13:07:01,255 INFO L87 Difference]: Start difference. First operand 304 states and 319 transitions. Second operand has 9 states, 8 states have (on average 20.625) internal successors, (165), 9 states have internal predecessors, (165), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:07:01,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:01,772 INFO L93 Difference]: Finished difference Result 305 states and 319 transitions. [2024-12-02 13:07:01,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:07:01,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 20.625) internal successors, (165), 9 states have internal predecessors, (165), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 187 [2024-12-02 13:07:01,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:01,774 INFO L225 Difference]: With dead ends: 305 [2024-12-02 13:07:01,774 INFO L226 Difference]: Without dead ends: 299 [2024-12-02 13:07:01,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-12-02 13:07:01,775 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:01,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 191 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:07:01,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2024-12-02 13:07:01,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2024-12-02 13:07:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 283 states have (on average 1.0494699646643109) internal successors, (297), 289 states have internal predecessors, (297), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 13:07:01,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 313 transitions. [2024-12-02 13:07:01,792 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 313 transitions. Word has length 187 [2024-12-02 13:07:01,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:01,793 INFO L471 AbstractCegarLoop]: Abstraction has 299 states and 313 transitions. [2024-12-02 13:07:01,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 20.625) internal successors, (165), 9 states have internal predecessors, (165), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-12-02 13:07:01,793 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 313 transitions. [2024-12-02 13:07:01,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-12-02 13:07:01,794 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:01,794 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1] [2024-12-02 13:07:01,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-12-02 13:07:01,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 13:07:01,994 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:01,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:01,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1416490621, now seen corresponding path program 2 times [2024-12-02 13:07:01,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:01,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002559720] [2024-12-02 13:07:01,995 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:07:01,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:02,022 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:07:02,022 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:02,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1761437881] [2024-12-02 13:07:02,023 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:07:02,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:02,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:02,025 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:02,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-12-02 13:07:02,098 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:07:02,098 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:02,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-02 13:07:02,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:02,570 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 350 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 13:07:02,570 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:03,042 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 0 proven. 350 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-02 13:07:03,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:03,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002559720] [2024-12-02 13:07:03,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:03,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761437881] [2024-12-02 13:07:03,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761437881] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:07:03,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:07:03,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-12-02 13:07:03,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620502924] [2024-12-02 13:07:03,043 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:03,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 13:07:03,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:03,044 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 13:07:03,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:07:03,044 INFO L87 Difference]: Start difference. First operand 299 states and 313 transitions. Second operand has 24 states, 23 states have (on average 14.782608695652174) internal successors, (340), 24 states have internal predecessors, (340), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 13:07:04,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:04,380 INFO L93 Difference]: Finished difference Result 434 states and 466 transitions. [2024-12-02 13:07:04,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 13:07:04,380 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 14.782608695652174) internal successors, (340), 24 states have internal predecessors, (340), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 194 [2024-12-02 13:07:04,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:04,382 INFO L225 Difference]: With dead ends: 434 [2024-12-02 13:07:04,382 INFO L226 Difference]: Without dead ends: 433 [2024-12-02 13:07:04,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=369, Invalid=753, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 13:07:04,382 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 461 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 2428 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 2443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:04,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 385 Invalid, 2443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2428 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 13:07:04,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-12-02 13:07:04,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 395. [2024-12-02 13:07:04,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 376 states have (on average 1.0585106382978724) internal successors, (398), 382 states have internal predecessors, (398), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:04,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 420 transitions. [2024-12-02 13:07:04,397 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 420 transitions. Word has length 194 [2024-12-02 13:07:04,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:04,398 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 420 transitions. [2024-12-02 13:07:04,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 14.782608695652174) internal successors, (340), 24 states have internal predecessors, (340), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 13:07:04,398 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 420 transitions. [2024-12-02 13:07:04,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-12-02 13:07:04,399 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:04,399 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2024-12-02 13:07:04,408 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-12-02 13:07:04,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 13:07:04,600 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:04,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:04,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1503938058, now seen corresponding path program 5 times [2024-12-02 13:07:04,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:04,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103476343] [2024-12-02 13:07:04,601 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 13:07:04,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:04,624 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-12-02 13:07:04,624 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:04,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1714696888] [2024-12-02 13:07:04,625 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 13:07:04,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:04,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:04,628 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:04,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-12-02 13:07:04,743 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-12-02 13:07:04,743 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:04,745 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 13:07:04,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 460 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-02 13:07:05,268 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:05,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:05,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103476343] [2024-12-02 13:07:05,330 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:05,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714696888] [2024-12-02 13:07:05,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714696888] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:05,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:05,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-12-02 13:07:05,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134215628] [2024-12-02 13:07:05,330 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:05,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 13:07:05,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:05,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 13:07:05,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:07:05,332 INFO L87 Difference]: Start difference. First operand 395 states and 420 transitions. Second operand has 14 states, 13 states have (on average 15.0) internal successors, (195), 14 states have internal predecessors, (195), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 13:07:05,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:05,957 INFO L93 Difference]: Finished difference Result 404 states and 428 transitions. [2024-12-02 13:07:05,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 13:07:05,958 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 15.0) internal successors, (195), 14 states have internal predecessors, (195), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 222 [2024-12-02 13:07:05,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:05,959 INFO L225 Difference]: With dead ends: 404 [2024-12-02 13:07:05,959 INFO L226 Difference]: Without dead ends: 400 [2024-12-02 13:07:05,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:07:05,959 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 6 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 2051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:05,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 269 Invalid, 2051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 13:07:05,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-12-02 13:07:05,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-12-02 13:07:05,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 381 states have (on average 1.0551181102362204) internal successors, (402), 387 states have internal predecessors, (402), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:05,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 424 transitions. [2024-12-02 13:07:05,979 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 424 transitions. Word has length 222 [2024-12-02 13:07:05,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:05,979 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 424 transitions. [2024-12-02 13:07:05,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 15.0) internal successors, (195), 14 states have internal predecessors, (195), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 13:07:05,979 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 424 transitions. [2024-12-02 13:07:05,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-12-02 13:07:05,980 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:05,981 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:05,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-12-02 13:07:06,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 13:07:06,181 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:06,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:06,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1280027761, now seen corresponding path program 5 times [2024-12-02 13:07:06,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:06,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440360986] [2024-12-02 13:07:06,182 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 13:07:06,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:06,217 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-12-02 13:07:06,217 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:06,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [323132177] [2024-12-02 13:07:06,218 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-12-02 13:07:06,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:06,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:06,220 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:06,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-12-02 13:07:06,319 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-12-02 13:07:06,319 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:06,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 13:07:06,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:06,794 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 460 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-02 13:07:06,794 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:07,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:07,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440360986] [2024-12-02 13:07:07,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:07,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323132177] [2024-12-02 13:07:07,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323132177] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:07,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:07,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-12-02 13:07:07,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022020278] [2024-12-02 13:07:07,264 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:07,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 13:07:07,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:07,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 13:07:07,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2024-12-02 13:07:07,265 INFO L87 Difference]: Start difference. First operand 400 states and 424 transitions. Second operand has 9 states, 8 states have (on average 24.75) internal successors, (198), 9 states have internal predecessors, (198), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 13:07:07,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:07,798 INFO L93 Difference]: Finished difference Result 401 states and 424 transitions. [2024-12-02 13:07:07,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 13:07:07,799 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 24.75) internal successors, (198), 9 states have internal predecessors, (198), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 225 [2024-12-02 13:07:07,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:07,800 INFO L225 Difference]: With dead ends: 401 [2024-12-02 13:07:07,800 INFO L226 Difference]: Without dead ends: 395 [2024-12-02 13:07:07,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2024-12-02 13:07:07,801 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 6 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:07,801 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 252 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 13:07:07,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-12-02 13:07:07,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-12-02 13:07:07,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 376 states have (on average 1.053191489361702) internal successors, (396), 382 states have internal predecessors, (396), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:07,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 418 transitions. [2024-12-02 13:07:07,814 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 418 transitions. Word has length 225 [2024-12-02 13:07:07,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:07,814 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 418 transitions. [2024-12-02 13:07:07,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 24.75) internal successors, (198), 9 states have internal predecessors, (198), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 13:07:07,814 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 418 transitions. [2024-12-02 13:07:07,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-12-02 13:07:07,819 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:07,819 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1] [2024-12-02 13:07:07,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-12-02 13:07:08,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 13:07:08,020 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:08,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:08,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1128611587, now seen corresponding path program 6 times [2024-12-02 13:07:08,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:08,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709268149] [2024-12-02 13:07:08,021 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 13:07:08,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:08,055 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-12-02 13:07:08,055 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:08,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [315867230] [2024-12-02 13:07:08,056 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 13:07:08,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:08,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:08,058 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:08,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-12-02 13:07:08,207 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-12-02 13:07:08,207 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:08,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-02 13:07:08,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:08,735 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 0 proven. 654 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 13:07:08,735 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:08,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:08,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709268149] [2024-12-02 13:07:08,804 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:08,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315867230] [2024-12-02 13:07:08,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315867230] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:08,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:08,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-12-02 13:07:08,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156358246] [2024-12-02 13:07:08,805 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:08,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 13:07:08,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:08,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 13:07:08,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:07:08,806 INFO L87 Difference]: Start difference. First operand 395 states and 418 transitions. Second operand has 16 states, 15 states have (on average 15.2) internal successors, (228), 16 states have internal predecessors, (228), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 13:07:09,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:09,632 INFO L93 Difference]: Finished difference Result 404 states and 426 transitions. [2024-12-02 13:07:09,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 13:07:09,633 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 15.2) internal successors, (228), 16 states have internal predecessors, (228), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 260 [2024-12-02 13:07:09,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:09,634 INFO L225 Difference]: With dead ends: 404 [2024-12-02 13:07:09,635 INFO L226 Difference]: Without dead ends: 400 [2024-12-02 13:07:09,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2024-12-02 13:07:09,635 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 6 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 2834 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 2836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:09,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 354 Invalid, 2836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2834 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 13:07:09,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-12-02 13:07:09,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-12-02 13:07:09,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 381 states have (on average 1.0498687664041995) internal successors, (400), 387 states have internal predecessors, (400), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:09,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 422 transitions. [2024-12-02 13:07:09,649 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 422 transitions. Word has length 260 [2024-12-02 13:07:09,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:09,649 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 422 transitions. [2024-12-02 13:07:09,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 15.2) internal successors, (228), 16 states have internal predecessors, (228), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 13:07:09,649 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 422 transitions. [2024-12-02 13:07:09,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-12-02 13:07:09,650 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:09,650 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:09,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-12-02 13:07:09,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 13:07:09,850 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:09,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:09,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1463676996, now seen corresponding path program 6 times [2024-12-02 13:07:09,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:09,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105006271] [2024-12-02 13:07:09,851 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 13:07:09,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:09,884 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-12-02 13:07:09,884 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:09,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [510764440] [2024-12-02 13:07:09,886 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-12-02 13:07:09,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:09,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:09,888 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:09,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-12-02 13:07:10,016 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-12-02 13:07:10,016 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:10,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-12-02 13:07:10,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:10,862 INFO L134 CoverageAnalysis]: Checked inductivity of 738 backedges. 0 proven. 654 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 13:07:10,862 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:11,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:11,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105006271] [2024-12-02 13:07:11,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:11,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510764440] [2024-12-02 13:07:11,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510764440] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:11,481 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:11,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-12-02 13:07:11,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435439837] [2024-12-02 13:07:11,482 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:11,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-12-02 13:07:11,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:11,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-12-02 13:07:11,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:07:11,482 INFO L87 Difference]: Start difference. First operand 400 states and 422 transitions. Second operand has 16 states, 15 states have (on average 15.4) internal successors, (231), 16 states have internal predecessors, (231), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 13:07:12,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:12,384 INFO L93 Difference]: Finished difference Result 401 states and 422 transitions. [2024-12-02 13:07:12,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-12-02 13:07:12,385 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 15.4) internal successors, (231), 16 states have internal predecessors, (231), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 263 [2024-12-02 13:07:12,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:12,386 INFO L225 Difference]: With dead ends: 401 [2024-12-02 13:07:12,386 INFO L226 Difference]: Without dead ends: 395 [2024-12-02 13:07:12,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:07:12,386 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 4 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 2987 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:12,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 371 Invalid, 2987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2987 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:07:12,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-12-02 13:07:12,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-12-02 13:07:12,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 376 states have (on average 1.047872340425532) internal successors, (394), 382 states have internal predecessors, (394), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:12,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 416 transitions. [2024-12-02 13:07:12,399 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 416 transitions. Word has length 263 [2024-12-02 13:07:12,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:12,400 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 416 transitions. [2024-12-02 13:07:12,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 15.4) internal successors, (231), 16 states have internal predecessors, (231), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 13:07:12,400 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 416 transitions. [2024-12-02 13:07:12,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-12-02 13:07:12,401 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:12,401 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1] [2024-12-02 13:07:12,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-12-02 13:07:12,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 13:07:12,601 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:12,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:12,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1628466608, now seen corresponding path program 7 times [2024-12-02 13:07:12,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:12,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813463106] [2024-12-02 13:07:12,602 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 13:07:12,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:07:12,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1521509429] [2024-12-02 13:07:12,628 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 13:07:12,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:12,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:12,630 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:12,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-12-02 13:07:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:12,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-12-02 13:07:12,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:13,392 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 0 proven. 882 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 13:07:13,392 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:13,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:13,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813463106] [2024-12-02 13:07:13,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:13,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521509429] [2024-12-02 13:07:13,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521509429] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:13,475 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:13,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-12-02 13:07:13,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030609952] [2024-12-02 13:07:13,475 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:13,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 13:07:13,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:13,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 13:07:13,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:07:13,476 INFO L87 Difference]: Start difference. First operand 395 states and 416 transitions. Second operand has 18 states, 17 states have (on average 15.352941176470589) internal successors, (261), 18 states have internal predecessors, (261), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 13:07:14,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:14,446 INFO L93 Difference]: Finished difference Result 404 states and 424 transitions. [2024-12-02 13:07:14,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-12-02 13:07:14,447 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 15.352941176470589) internal successors, (261), 18 states have internal predecessors, (261), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 298 [2024-12-02 13:07:14,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:14,448 INFO L225 Difference]: With dead ends: 404 [2024-12-02 13:07:14,448 INFO L226 Difference]: Without dead ends: 400 [2024-12-02 13:07:14,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:07:14,449 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 6 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 3277 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:14,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 397 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3277 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:07:14,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-12-02 13:07:14,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-12-02 13:07:14,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 381 states have (on average 1.0446194225721785) internal successors, (398), 387 states have internal predecessors, (398), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:14,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 420 transitions. [2024-12-02 13:07:14,461 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 420 transitions. Word has length 298 [2024-12-02 13:07:14,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:14,462 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 420 transitions. [2024-12-02 13:07:14,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 15.352941176470589) internal successors, (261), 18 states have internal predecessors, (261), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 13:07:14,462 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 420 transitions. [2024-12-02 13:07:14,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2024-12-02 13:07:14,463 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:14,463 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:14,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-12-02 13:07:14,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:14,663 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:14,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:14,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1993228841, now seen corresponding path program 7 times [2024-12-02 13:07:14,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:14,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203642741] [2024-12-02 13:07:14,664 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 13:07:14,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:07:14,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1195671222] [2024-12-02 13:07:14,688 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-12-02 13:07:14,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:14,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:14,690 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:14,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-12-02 13:07:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:14,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-12-02 13:07:14,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:15,857 INFO L134 CoverageAnalysis]: Checked inductivity of 994 backedges. 21 proven. 882 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-12-02 13:07:15,857 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:18,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:18,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203642741] [2024-12-02 13:07:18,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:18,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1195671222] [2024-12-02 13:07:18,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1195671222] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:18,446 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:18,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-12-02 13:07:18,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135982331] [2024-12-02 13:07:18,446 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:18,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-12-02 13:07:18,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:18,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-12-02 13:07:18,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=1134, Unknown=0, NotChecked=0, Total=1482 [2024-12-02 13:07:18,448 INFO L87 Difference]: Start difference. First operand 400 states and 420 transitions. Second operand has 21 states, 20 states have (on average 13.35) internal successors, (267), 21 states have internal predecessors, (267), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 13:07:19,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:19,878 INFO L93 Difference]: Finished difference Result 403 states and 422 transitions. [2024-12-02 13:07:19,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 13:07:19,878 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 13.35) internal successors, (267), 21 states have internal predecessors, (267), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 301 [2024-12-02 13:07:19,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:19,880 INFO L225 Difference]: With dead ends: 403 [2024-12-02 13:07:19,880 INFO L226 Difference]: Without dead ends: 397 [2024-12-02 13:07:19,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=374, Invalid=1266, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 13:07:19,881 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 16 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 4816 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 4824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 4816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:19,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 454 Invalid, 4824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 4816 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 13:07:19,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-12-02 13:07:19,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 395. [2024-12-02 13:07:19,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 376 states have (on average 1.0425531914893618) internal successors, (392), 382 states have internal predecessors, (392), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:19,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 414 transitions. [2024-12-02 13:07:19,904 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 414 transitions. Word has length 301 [2024-12-02 13:07:19,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:19,904 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 414 transitions. [2024-12-02 13:07:19,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 13.35) internal successors, (267), 21 states have internal predecessors, (267), 8 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 13:07:19,904 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 414 transitions. [2024-12-02 13:07:19,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-12-02 13:07:19,906 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:19,906 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 1, 1, 1] [2024-12-02 13:07:19,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-12-02 13:07:20,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-12-02 13:07:20,106 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:20,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:20,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1989617880, now seen corresponding path program 1 times [2024-12-02 13:07:20,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:20,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550260583] [2024-12-02 13:07:20,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:20,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 13:07:20,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141236492] [2024-12-02 13:07:20,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 13:07:20,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:20,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:20,141 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:20,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-12-02 13:07:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 13:07:20,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 13:07:20,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 938 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 13:07:20,514 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:20,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:20,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550260583] [2024-12-02 13:07:20,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:20,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141236492] [2024-12-02 13:07:20,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141236492] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:20,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:20,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-12-02 13:07:20,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367480252] [2024-12-02 13:07:20,581 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:20,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 13:07:20,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:20,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 13:07:20,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:07:20,582 INFO L87 Difference]: Start difference. First operand 395 states and 414 transitions. Second operand has 11 states, 10 states have (on average 26.7) internal successors, (267), 11 states have internal predecessors, (267), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 13:07:20,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:20,844 INFO L93 Difference]: Finished difference Result 403 states and 422 transitions. [2024-12-02 13:07:20,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 13:07:20,845 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 26.7) internal successors, (267), 11 states have internal predecessors, (267), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 304 [2024-12-02 13:07:20,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:20,846 INFO L225 Difference]: With dead ends: 403 [2024-12-02 13:07:20,846 INFO L226 Difference]: Without dead ends: 402 [2024-12-02 13:07:20,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-12-02 13:07:20,846 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 36 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:20,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 86 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 13:07:20,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2024-12-02 13:07:20,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 395. [2024-12-02 13:07:20,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 376 states have (on average 1.0398936170212767) internal successors, (391), 382 states have internal predecessors, (391), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:20,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 413 transitions. [2024-12-02 13:07:20,869 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 413 transitions. Word has length 304 [2024-12-02 13:07:20,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:20,870 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 413 transitions. [2024-12-02 13:07:20,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 26.7) internal successors, (267), 11 states have internal predecessors, (267), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 13:07:20,870 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 413 transitions. [2024-12-02 13:07:20,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2024-12-02 13:07:20,873 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:20,873 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1] [2024-12-02 13:07:20,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-12-02 13:07:21,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-12-02 13:07:21,074 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:21,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:21,074 INFO L85 PathProgramCache]: Analyzing trace with hash -86127774, now seen corresponding path program 2 times [2024-12-02 13:07:21,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:21,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300351986] [2024-12-02 13:07:21,074 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:07:21,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:21,105 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:07:21,105 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:21,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [317023309] [2024-12-02 13:07:21,106 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:07:21,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:21,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:21,108 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:21,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-12-02 13:07:21,198 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:07:21,198 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:21,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-02 13:07:21,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:21,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1016 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 13:07:21,471 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1016 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-12-02 13:07:22,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:22,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300351986] [2024-12-02 13:07:22,238 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:22,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317023309] [2024-12-02 13:07:22,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317023309] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 13:07:22,238 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 13:07:22,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-12-02 13:07:22,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231474203] [2024-12-02 13:07:22,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:22,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:07:22,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:22,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:07:22,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-12-02 13:07:22,239 INFO L87 Difference]: Start difference. First operand 395 states and 413 transitions. Second operand has 20 states, 19 states have (on average 28.94736842105263) internal successors, (550), 20 states have internal predecessors, (550), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:07:24,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:24,054 INFO L93 Difference]: Finished difference Result 711 states and 772 transitions. [2024-12-02 13:07:24,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 13:07:24,054 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 28.94736842105263) internal successors, (550), 20 states have internal predecessors, (550), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 314 [2024-12-02 13:07:24,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:24,056 INFO L225 Difference]: With dead ends: 711 [2024-12-02 13:07:24,056 INFO L226 Difference]: Without dead ends: 709 [2024-12-02 13:07:24,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 608 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=278, Invalid=478, Unknown=0, NotChecked=0, Total=756 [2024-12-02 13:07:24,056 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 553 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 2687 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 2706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:24,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 670 Invalid, 2706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2687 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 13:07:24,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2024-12-02 13:07:24,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 639. [2024-12-02 13:07:24,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 613 states have (on average 1.0522022838499185) internal successors, (645), 619 states have internal predecessors, (645), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 13:07:24,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 681 transitions. [2024-12-02 13:07:24,077 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 681 transitions. Word has length 314 [2024-12-02 13:07:24,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:24,077 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 681 transitions. [2024-12-02 13:07:24,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 28.94736842105263) internal successors, (550), 20 states have internal predecessors, (550), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-12-02 13:07:24,077 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 681 transitions. [2024-12-02 13:07:24,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-12-02 13:07:24,078 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:24,078 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1] [2024-12-02 13:07:24,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-12-02 13:07:24,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:24,279 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:24,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:24,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1332870179, now seen corresponding path program 8 times [2024-12-02 13:07:24,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:24,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687336277] [2024-12-02 13:07:24,279 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:07:24,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:24,309 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:07:24,309 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:24,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1827695255] [2024-12-02 13:07:24,310 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:07:24,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:24,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:24,312 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:24,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-12-02 13:07:24,421 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:07:24,421 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:24,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-02 13:07:24,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:25,182 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 0 proven. 1144 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 13:07:25,183 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:25,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:25,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687336277] [2024-12-02 13:07:25,248 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:25,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827695255] [2024-12-02 13:07:25,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827695255] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:25,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:25,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-12-02 13:07:25,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722549854] [2024-12-02 13:07:25,248 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:25,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 13:07:25,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:25,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 13:07:25,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:07:25,250 INFO L87 Difference]: Start difference. First operand 639 states and 681 transitions. Second operand has 20 states, 19 states have (on average 15.473684210526315) internal successors, (294), 20 states have internal predecessors, (294), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 13:07:26,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:26,328 INFO L93 Difference]: Finished difference Result 648 states and 689 transitions. [2024-12-02 13:07:26,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 13:07:26,328 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 15.473684210526315) internal successors, (294), 20 states have internal predecessors, (294), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 336 [2024-12-02 13:07:26,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:26,329 INFO L225 Difference]: With dead ends: 648 [2024-12-02 13:07:26,329 INFO L226 Difference]: Without dead ends: 644 [2024-12-02 13:07:26,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:07:26,330 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 6 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 3465 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 3467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:26,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 410 Invalid, 3467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3465 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 13:07:26,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-12-02 13:07:26,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2024-12-02 13:07:26,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 618 states have (on average 1.0501618122977345) internal successors, (649), 624 states have internal predecessors, (649), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 13:07:26,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 685 transitions. [2024-12-02 13:07:26,362 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 685 transitions. Word has length 336 [2024-12-02 13:07:26,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:26,362 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 685 transitions. [2024-12-02 13:07:26,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 15.473684210526315) internal successors, (294), 20 states have internal predecessors, (294), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 13:07:26,362 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 685 transitions. [2024-12-02 13:07:26,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-12-02 13:07:26,363 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:26,364 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:26,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-12-02 13:07:26,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:26,564 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:26,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:26,565 INFO L85 PathProgramCache]: Analyzing trace with hash 562969302, now seen corresponding path program 8 times [2024-12-02 13:07:26,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:26,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127069210] [2024-12-02 13:07:26,565 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:07:26,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:26,590 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:07:26,590 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:26,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1031616209] [2024-12-02 13:07:26,591 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 13:07:26,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:26,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:26,594 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:26,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-12-02 13:07:26,688 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-12-02 13:07:26,688 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:26,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-12-02 13:07:26,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1288 backedges. 0 proven. 1144 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-12-02 13:07:27,465 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:27,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:27,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127069210] [2024-12-02 13:07:27,606 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:27,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1031616209] [2024-12-02 13:07:27,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1031616209] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:27,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:27,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-12-02 13:07:27,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749442592] [2024-12-02 13:07:27,606 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:27,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-12-02 13:07:27,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:27,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 13:07:27,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-12-02 13:07:27,607 INFO L87 Difference]: Start difference. First operand 644 states and 685 transitions. Second operand has 19 states, 18 states have (on average 16.5) internal successors, (297), 19 states have internal predecessors, (297), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 13:07:29,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:29,019 INFO L93 Difference]: Finished difference Result 645 states and 685 transitions. [2024-12-02 13:07:29,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-12-02 13:07:29,019 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 16.5) internal successors, (297), 19 states have internal predecessors, (297), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Word has length 339 [2024-12-02 13:07:29,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:29,021 INFO L225 Difference]: With dead ends: 645 [2024-12-02 13:07:29,021 INFO L226 Difference]: Without dead ends: 639 [2024-12-02 13:07:29,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2024-12-02 13:07:29,022 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 6 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 5003 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 5003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5003 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:29,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 581 Invalid, 5003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5003 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 13:07:29,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-12-02 13:07:29,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2024-12-02 13:07:29,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 613 states have (on average 1.0489396411092986) internal successors, (643), 619 states have internal predecessors, (643), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 13:07:29,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 679 transitions. [2024-12-02 13:07:29,057 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 679 transitions. Word has length 339 [2024-12-02 13:07:29,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:29,057 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 679 transitions. [2024-12-02 13:07:29,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 16.5) internal successors, (297), 19 states have internal predecessors, (297), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-12-02 13:07:29,057 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 679 transitions. [2024-12-02 13:07:29,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-12-02 13:07:29,058 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:29,058 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1] [2024-12-02 13:07:29,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-12-02 13:07:29,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-12-02 13:07:29,259 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:29,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:29,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1101536342, now seen corresponding path program 9 times [2024-12-02 13:07:29,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:29,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847849710] [2024-12-02 13:07:29,260 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:07:29,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:29,292 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-12-02 13:07:29,292 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:29,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044486926] [2024-12-02 13:07:29,294 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:07:29,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:29,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:29,296 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:29,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-12-02 13:07:29,558 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-12-02 13:07:29,558 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:29,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-12-02 13:07:29,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:30,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 13:07:30,361 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:30,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:30,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847849710] [2024-12-02 13:07:30,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:30,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044486926] [2024-12-02 13:07:30,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044486926] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:30,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:30,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-12-02 13:07:30,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897973430] [2024-12-02 13:07:30,435 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:30,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 13:07:30,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:30,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 13:07:30,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:07:30,436 INFO L87 Difference]: Start difference. First operand 639 states and 679 transitions. Second operand has 22 states, 21 states have (on average 15.571428571428571) internal successors, (327), 22 states have internal predecessors, (327), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 13:07:31,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:31,843 INFO L93 Difference]: Finished difference Result 648 states and 687 transitions. [2024-12-02 13:07:31,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-12-02 13:07:31,843 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 15.571428571428571) internal successors, (327), 22 states have internal predecessors, (327), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 374 [2024-12-02 13:07:31,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:31,844 INFO L225 Difference]: With dead ends: 648 [2024-12-02 13:07:31,845 INFO L226 Difference]: Without dead ends: 644 [2024-12-02 13:07:31,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:07:31,845 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 6 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 5054 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 5056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5054 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:31,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 582 Invalid, 5056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5054 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 13:07:31,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-12-02 13:07:31,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2024-12-02 13:07:31,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 618 states have (on average 1.0469255663430421) internal successors, (647), 624 states have internal predecessors, (647), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 13:07:31,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 683 transitions. [2024-12-02 13:07:31,880 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 683 transitions. Word has length 374 [2024-12-02 13:07:31,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:31,881 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 683 transitions. [2024-12-02 13:07:31,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 15.571428571428571) internal successors, (327), 22 states have internal predecessors, (327), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 13:07:31,881 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 683 transitions. [2024-12-02 13:07:31,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-12-02 13:07:31,883 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:31,883 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:31,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-12-02 13:07:32,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:32,084 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:32,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:32,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1975825981, now seen corresponding path program 9 times [2024-12-02 13:07:32,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:32,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054353578] [2024-12-02 13:07:32,084 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:07:32,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:32,116 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-12-02 13:07:32,117 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:32,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1816670344] [2024-12-02 13:07:32,118 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:07:32,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:32,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:32,120 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:32,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-12-02 13:07:33,812 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-12-02 13:07:33,812 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:33,814 INFO L256 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-12-02 13:07:33,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:34,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-12-02 13:07:34,596 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:35,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:35,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054353578] [2024-12-02 13:07:35,448 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:35,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816670344] [2024-12-02 13:07:35,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816670344] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:35,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:35,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-12-02 13:07:35,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206602881] [2024-12-02 13:07:35,448 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:35,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-12-02 13:07:35,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:35,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-12-02 13:07:35,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2024-12-02 13:07:35,449 INFO L87 Difference]: Start difference. First operand 644 states and 683 transitions. Second operand has 13 states, 12 states have (on average 27.5) internal successors, (330), 13 states have internal predecessors, (330), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 13:07:36,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:36,432 INFO L93 Difference]: Finished difference Result 645 states and 683 transitions. [2024-12-02 13:07:36,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-12-02 13:07:36,433 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 27.5) internal successors, (330), 13 states have internal predecessors, (330), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 377 [2024-12-02 13:07:36,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:36,435 INFO L225 Difference]: With dead ends: 645 [2024-12-02 13:07:36,435 INFO L226 Difference]: Without dead ends: 639 [2024-12-02 13:07:36,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 703 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2024-12-02 13:07:36,436 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 6 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 3400 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 3400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:36,436 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 608 Invalid, 3400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3400 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 13:07:36,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-12-02 13:07:36,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 639. [2024-12-02 13:07:36,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 613 states have (on average 1.0456769983686787) internal successors, (641), 619 states have internal predecessors, (641), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 13:07:36,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 677 transitions. [2024-12-02 13:07:36,467 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 677 transitions. Word has length 377 [2024-12-02 13:07:36,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:36,468 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 677 transitions. [2024-12-02 13:07:36,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 27.5) internal successors, (330), 13 states have internal predecessors, (330), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-12-02 13:07:36,468 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 677 transitions. [2024-12-02 13:07:36,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-12-02 13:07:36,470 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:36,470 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2024-12-02 13:07:36,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-12-02 13:07:36,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:36,670 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:36,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:36,671 INFO L85 PathProgramCache]: Analyzing trace with hash 91717193, now seen corresponding path program 10 times [2024-12-02 13:07:36,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:36,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758278332] [2024-12-02 13:07:36,671 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 13:07:36,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:36,719 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 13:07:36,720 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:36,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2065843582] [2024-12-02 13:07:36,721 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 13:07:36,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:36,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:36,723 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:36,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-12-02 13:07:36,867 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 13:07:36,867 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:36,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-02 13:07:36,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:37,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1990 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-12-02 13:07:37,781 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:37,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:37,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758278332] [2024-12-02 13:07:37,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:37,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065843582] [2024-12-02 13:07:37,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065843582] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:37,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:37,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2024-12-02 13:07:37,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900687369] [2024-12-02 13:07:37,861 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:37,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-12-02 13:07:37,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:37,862 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-12-02 13:07:37,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2024-12-02 13:07:37,863 INFO L87 Difference]: Start difference. First operand 639 states and 677 transitions. Second operand has 24 states, 23 states have (on average 15.652173913043478) internal successors, (360), 24 states have internal predecessors, (360), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:39,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:39,243 INFO L93 Difference]: Finished difference Result 648 states and 685 transitions. [2024-12-02 13:07:39,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-12-02 13:07:39,243 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 15.652173913043478) internal successors, (360), 24 states have internal predecessors, (360), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 412 [2024-12-02 13:07:39,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:39,244 INFO L225 Difference]: With dead ends: 648 [2024-12-02 13:07:39,244 INFO L226 Difference]: Without dead ends: 644 [2024-12-02 13:07:39,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=567, Unknown=0, NotChecked=0, Total=650 [2024-12-02 13:07:39,245 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 6 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 4949 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 4951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:39,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 562 Invalid, 4951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4949 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 13:07:39,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-12-02 13:07:39,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2024-12-02 13:07:39,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 618 states have (on average 1.0436893203883495) internal successors, (645), 624 states have internal predecessors, (645), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 13:07:39,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 681 transitions. [2024-12-02 13:07:39,265 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 681 transitions. Word has length 412 [2024-12-02 13:07:39,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:39,265 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 681 transitions. [2024-12-02 13:07:39,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 15.652173913043478) internal successors, (360), 24 states have internal predecessors, (360), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:39,265 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 681 transitions. [2024-12-02 13:07:39,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-12-02 13:07:39,267 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:39,268 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 13:07:39,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-12-02 13:07:39,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-12-02 13:07:39,468 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:39,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:39,468 INFO L85 PathProgramCache]: Analyzing trace with hash 747814640, now seen corresponding path program 10 times [2024-12-02 13:07:39,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:39,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597367728] [2024-12-02 13:07:39,469 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 13:07:39,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:39,508 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 13:07:39,508 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:39,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218108013] [2024-12-02 13:07:39,510 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-12-02 13:07:39,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:39,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:39,512 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:39,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-12-02 13:07:39,607 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-12-02 13:07:39,607 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:07:39,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-12-02 13:07:39,618 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:07:41,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1990 backedges. 84 proven. 1776 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-12-02 13:07:41,124 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:07:42,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 13:07:42,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597367728] [2024-12-02 13:07:42,746 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 13:07:42,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218108013] [2024-12-02 13:07:42,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [218108013] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 13:07:42,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-12-02 13:07:42,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2024-12-02 13:07:42,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165400239] [2024-12-02 13:07:42,746 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-12-02 13:07:42,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 13:07:42,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 13:07:42,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 13:07:42,748 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1569, Unknown=0, NotChecked=0, Total=1806 [2024-12-02 13:07:42,748 INFO L87 Difference]: Start difference. First operand 644 states and 681 transitions. Second operand has 31 states, 30 states have (on average 12.2) internal successors, (366), 31 states have internal predecessors, (366), 11 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:45,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 13:07:45,582 INFO L93 Difference]: Finished difference Result 647 states and 683 transitions. [2024-12-02 13:07:45,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-12-02 13:07:45,583 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 12.2) internal successors, (366), 31 states have internal predecessors, (366), 11 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Word has length 415 [2024-12-02 13:07:45,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 13:07:45,584 INFO L225 Difference]: With dead ends: 647 [2024-12-02 13:07:45,584 INFO L226 Difference]: Without dead ends: 641 [2024-12-02 13:07:45,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 575 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=257, Invalid=1723, Unknown=0, NotChecked=0, Total=1980 [2024-12-02 13:07:45,585 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 36 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 9804 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 9810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-12-02 13:07:45,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 600 Invalid, 9810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9804 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-12-02 13:07:45,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-12-02 13:07:45,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 639. [2024-12-02 13:07:45,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 639 states, 613 states have (on average 1.0424143556280587) internal successors, (639), 619 states have internal predecessors, (639), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-12-02 13:07:45,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 675 transitions. [2024-12-02 13:07:45,611 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 675 transitions. Word has length 415 [2024-12-02 13:07:45,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 13:07:45,611 INFO L471 AbstractCegarLoop]: Abstraction has 639 states and 675 transitions. [2024-12-02 13:07:45,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 12.2) internal successors, (366), 31 states have internal predecessors, (366), 11 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-12-02 13:07:45,611 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 675 transitions. [2024-12-02 13:07:45,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-12-02 13:07:45,613 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 13:07:45,613 INFO L218 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1] [2024-12-02 13:07:45,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-12-02 13:07:45,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-12-02 13:07:45,813 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-12-02 13:07:45,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 13:07:45,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1784388725, now seen corresponding path program 3 times [2024-12-02 13:07:45,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 13:07:45,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604454772] [2024-12-02 13:07:45,814 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:07:45,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 13:07:45,852 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-12-02 13:07:45,852 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-12-02 13:07:45,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1454279843] [2024-12-02 13:07:45,854 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-12-02 13:07:45,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 13:07:45,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 13:07:45,856 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 13:07:45,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56a2216d-9614-496c-ac6b-529a1ec8fda4/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-12-02 13:08:23,954 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-12-02 13:08:23,954 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 13:08:23,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-12-02 13:08:23,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 13:08:24,650 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 45 proven. 1901 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2024-12-02 13:08:24,650 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 13:08:34,650 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 2))) (or (< (+ (* 7 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) (* |c_ULTIMATE.start_main_~y~0#1| 273) (* (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 63)) (+ 536870471 (div (+ .cse0 (* (- 1) |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* (- 1) |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) 4))) (not (= (mod (+ .cse0 (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 3) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| 3)) 4) 0)))) is different from false [2024-12-02 13:11:01,110 WARN L286 SmtUtils]: Spent 7.12s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:11:47,189 WARN L286 SmtUtils]: Spent 13.96s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 13:20:17,702 WARN L286 SmtUtils]: Spent 45.01s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)