./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound100.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_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound100.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bd5c2784fe43830be309c722c3fa9fc4d3ef116c17a8343acb2a2dfbcf830c0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:07:50,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:07:50,297 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:07:50,304 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:07:50,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:07:50,343 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:07:50,345 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:07:50,345 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:07:50,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:07:50,346 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:07:50,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:07:50,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:07:50,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:07:50,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:07:50,347 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:07:50,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:07:50,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:07:50,349 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:07:50,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:07:50,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:07:50,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:07:50,350 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:07:50,350 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:07:50,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:07:50,350 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:07:50,350 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:07:50,351 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:07:50,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:07:50,351 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:07:50,351 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:07:50,351 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:07:50,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:07:50,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:07:50,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:07:50,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:07:50,352 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:07:50,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:07:50,352 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:07:50,352 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:07:50,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:07:50,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:07:50,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:07:50,354 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:07:50,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:07:50,354 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:07:50,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:07:50,354 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:07:50,355 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:07:50,355 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:07:50,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:07:50,355 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_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bd5c2784fe43830be309c722c3fa9fc4d3ef116c17a8343acb2a2dfbcf830c0 [2024-11-28 04:07:50,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:07:50,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:07:50,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:07:50,786 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:07:50,787 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:07:50,789 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound100.c [2024-11-28 04:07:54,128 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/data/f711df6fc/46be21a143b7440b90aec71e33ce9440/FLAG1a6ee47f7 [2024-11-28 04:07:54,483 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:07:54,488 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound100.c [2024-11-28 04:07:54,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/data/f711df6fc/46be21a143b7440b90aec71e33ce9440/FLAG1a6ee47f7 [2024-11-28 04:07:54,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/data/f711df6fc/46be21a143b7440b90aec71e33ce9440 [2024-11-28 04:07:54,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:07:54,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:07:54,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:07:54,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:07:54,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:07:54,535 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:54,536 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c4f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54, skipping insertion in model container [2024-11-28 04:07:54,536 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:54,555 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:07:54,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:07:54,839 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:07:54,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:07:54,889 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:07:54,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54 WrapperNode [2024-11-28 04:07:54,890 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:07:54,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:07:54,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:07:54,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:07:54,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:54,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:54,942 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2024-11-28 04:07:54,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:07:54,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:07:54,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:07:54,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:07:54,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:54,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:54,957 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:54,984 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:07:54,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:54,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:54,989 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:54,990 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:54,998 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:55,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:55,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:55,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:07:55,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:07:55,009 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:07:55,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:07:55,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (1/1) ... [2024-11-28 04:07:55,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:07:55,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:55,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:07:55,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:07:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:07:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:07:55,095 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:07:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:07:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:07:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:07:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:07:55,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:07:55,164 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:07:55,166 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:07:55,522 INFO L? ?]: Removed 47 outVars from TransFormulas that were not future-live. [2024-11-28 04:07:55,522 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:07:55,540 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:07:55,543 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 04:07:55,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:07:55 BoogieIcfgContainer [2024-11-28 04:07:55,545 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:07:55,549 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:07:55,549 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:07:55,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:07:55,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:07:54" (1/3) ... [2024-11-28 04:07:55,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729c0540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:07:55, skipping insertion in model container [2024-11-28 04:07:55,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:07:54" (2/3) ... [2024-11-28 04:07:55,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729c0540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:07:55, skipping insertion in model container [2024-11-28 04:07:55,560 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:07:55" (3/3) ... [2024-11-28 04:07:55,561 INFO L128 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound100.c [2024-11-28 04:07:55,587 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:07:55,589 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mannadiv_unwindbound100.c that has 3 procedures, 69 locations, 1 initial locations, 1 loop locations, and 22 error locations. [2024-11-28 04:07:55,675 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:07:55,693 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;@15329ac7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:07:55,694 INFO L334 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2024-11-28 04:07:55,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 40 states have (on average 1.7) internal successors, (68), 62 states have internal predecessors, (68), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:07:55,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:07:55,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:55,708 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:55,709 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:07:55,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:55,716 INFO L85 PathProgramCache]: Analyzing trace with hash -2141166240, now seen corresponding path program 1 times [2024-11-28 04:07:55,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:55,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102751520] [2024-11-28 04:07:55,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:55,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:55,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:55,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:07:55,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:55,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102751520] [2024-11-28 04:07:55,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102751520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:55,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906736632] [2024-11-28 04:07:55,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:55,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:55,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:55,924 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:55,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:07:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:55,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:07:55,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:56,013 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 04:07:56,015 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:56,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [906736632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:56,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:56,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:07:56,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685827323] [2024-11-28 04:07:56,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:56,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:07:56,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:56,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:07:56,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:07:56,060 INFO L87 Difference]: Start difference. First operand has 69 states, 40 states have (on average 1.7) internal successors, (68), 62 states have internal predecessors, (68), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:07:56,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:56,085 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2024-11-28 04:07:56,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:07:56,087 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-28 04:07:56,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:56,095 INFO L225 Difference]: With dead ends: 134 [2024-11-28 04:07:56,095 INFO L226 Difference]: Without dead ends: 62 [2024-11-28 04:07:56,098 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:07:56,102 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:56,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:07:56,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-28 04:07:56,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-28 04:07:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 35 states have (on average 1.6857142857142857) internal successors, (59), 56 states have internal predecessors, (59), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:07:56,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 65 transitions. [2024-11-28 04:07:56,153 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 65 transitions. Word has length 15 [2024-11-28 04:07:56,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:56,154 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 65 transitions. [2024-11-28 04:07:56,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 04:07:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 65 transitions. [2024-11-28 04:07:56,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:07:56,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:56,156 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:56,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:07:56,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 04:07:56,361 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:07:56,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:56,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1382845153, now seen corresponding path program 1 times [2024-11-28 04:07:56,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:56,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763347168] [2024-11-28 04:07:56,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:56,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:07:56,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:56,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763347168] [2024-11-28 04:07:56,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763347168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:56,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:56,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:07:56,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716147960] [2024-11-28 04:07:56,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:56,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:56,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:56,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:56,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:56,607 INFO L87 Difference]: Start difference. First operand 62 states and 65 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:56,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:56,673 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2024-11-28 04:07:56,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:07:56,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-28 04:07:56,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:56,675 INFO L225 Difference]: With dead ends: 62 [2024-11-28 04:07:56,676 INFO L226 Difference]: Without dead ends: 61 [2024-11-28 04:07:56,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:07:56,677 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 60 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:56,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 115 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:07:56,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-28 04:07:56,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-28 04:07:56,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 55 states have internal predecessors, (58), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:07:56,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2024-11-28 04:07:56,687 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 15 [2024-11-28 04:07:56,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:56,688 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2024-11-28 04:07:56,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:56,689 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2024-11-28 04:07:56,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-28 04:07:56,689 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:56,689 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:56,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:07:56,690 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:07:56,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:56,691 INFO L85 PathProgramCache]: Analyzing trace with hash 81473260, now seen corresponding path program 1 times [2024-11-28 04:07:56,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:56,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180344932] [2024-11-28 04:07:56,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:56,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:56,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:07:56,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:56,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180344932] [2024-11-28 04:07:56,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180344932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:56,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:56,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:07:56,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545459100] [2024-11-28 04:07:56,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:56,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:56,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:56,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:56,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:56,816 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:56,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:56,896 INFO L93 Difference]: Finished difference Result 74 states and 77 transitions. [2024-11-28 04:07:56,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:07:56,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-28 04:07:56,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:56,898 INFO L225 Difference]: With dead ends: 74 [2024-11-28 04:07:56,901 INFO L226 Difference]: Without dead ends: 65 [2024-11-28 04:07:56,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:07:56,903 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 8 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:56,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 168 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:07:56,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-28 04:07:56,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-28 04:07:56,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 39 states have (on average 1.5897435897435896) internal successors, (62), 59 states have internal predecessors, (62), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:07:56,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 68 transitions. [2024-11-28 04:07:56,926 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 68 transitions. Word has length 16 [2024-11-28 04:07:56,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:56,926 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 68 transitions. [2024-11-28 04:07:56,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:56,926 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 68 transitions. [2024-11-28 04:07:56,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-28 04:07:56,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:56,927 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:56,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:07:56,927 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:07:56,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:56,931 INFO L85 PathProgramCache]: Analyzing trace with hash 986393009, now seen corresponding path program 1 times [2024-11-28 04:07:56,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:56,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113423909] [2024-11-28 04:07:56,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:56,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:07:56,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [470507009] [2024-11-28 04:07:56,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:56,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:56,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:56,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:56,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:07:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:57,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:07:57,056 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:57,095 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:07:57,095 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:57,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:57,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113423909] [2024-11-28 04:07:57,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:07:57,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470507009] [2024-11-28 04:07:57,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470507009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:57,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:57,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:07:57,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903942904] [2024-11-28 04:07:57,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:57,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:07:57,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:57,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:07:57,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:07:57,102 INFO L87 Difference]: Start difference. First operand 65 states and 68 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:57,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:57,274 INFO L93 Difference]: Finished difference Result 103 states and 115 transitions. [2024-11-28 04:07:57,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:07:57,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-11-28 04:07:57,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:57,277 INFO L225 Difference]: With dead ends: 103 [2024-11-28 04:07:57,278 INFO L226 Difference]: Without dead ends: 97 [2024-11-28 04:07:57,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:07:57,280 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 28 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:57,280 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 86 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:07:57,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-28 04:07:57,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 88. [2024-11-28 04:07:57,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.6065573770491803) internal successors, (98), 81 states have internal predecessors, (98), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-28 04:07:57,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 106 transitions. [2024-11-28 04:07:57,337 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 106 transitions. Word has length 18 [2024-11-28 04:07:57,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:57,337 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 106 transitions. [2024-11-28 04:07:57,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:57,338 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 106 transitions. [2024-11-28 04:07:57,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-28 04:07:57,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:57,338 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:57,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:07:57,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:57,545 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:07:57,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:57,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1264089069, now seen corresponding path program 1 times [2024-11-28 04:07:57,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:57,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840821386] [2024-11-28 04:07:57,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:57,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:57,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:07:57,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:57,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840821386] [2024-11-28 04:07:57,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840821386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:57,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:57,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:07:57,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364818721] [2024-11-28 04:07:57,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:57,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:57,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:57,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:57,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:57,734 INFO L87 Difference]: Start difference. First operand 88 states and 106 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:57,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:57,995 INFO L93 Difference]: Finished difference Result 137 states and 173 transitions. [2024-11-28 04:07:57,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:07:57,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-28 04:07:57,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:57,998 INFO L225 Difference]: With dead ends: 137 [2024-11-28 04:07:57,998 INFO L226 Difference]: Without dead ends: 130 [2024-11-28 04:07:57,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:58,003 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 27 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:58,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 116 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:07:58,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-28 04:07:58,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 124. [2024-11-28 04:07:58,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 95 states have (on average 1.5578947368421052) internal successors, (148), 115 states have internal predecessors, (148), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:07:58,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 160 transitions. [2024-11-28 04:07:58,039 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 160 transitions. Word has length 20 [2024-11-28 04:07:58,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:58,039 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 160 transitions. [2024-11-28 04:07:58,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:58,040 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 160 transitions. [2024-11-28 04:07:58,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-28 04:07:58,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:58,040 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:58,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 04:07:58,041 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:07:58,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:58,046 INFO L85 PathProgramCache]: Analyzing trace with hash -532055418, now seen corresponding path program 1 times [2024-11-28 04:07:58,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:58,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57102361] [2024-11-28 04:07:58,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:58,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:58,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:07:58,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:58,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57102361] [2024-11-28 04:07:58,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57102361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:58,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:58,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:07:58,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12899777] [2024-11-28 04:07:58,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:58,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:58,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:58,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:58,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:58,189 INFO L87 Difference]: Start difference. First operand 124 states and 160 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:58,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:58,486 INFO L93 Difference]: Finished difference Result 134 states and 163 transitions. [2024-11-28 04:07:58,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:07:58,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-28 04:07:58,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:58,488 INFO L225 Difference]: With dead ends: 134 [2024-11-28 04:07:58,488 INFO L226 Difference]: Without dead ends: 125 [2024-11-28 04:07:58,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:58,489 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 28 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:58,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 120 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:07:58,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-28 04:07:58,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2024-11-28 04:07:58,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.5274725274725274) internal successors, (139), 111 states have internal predecessors, (139), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:07:58,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 151 transitions. [2024-11-28 04:07:58,504 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 151 transitions. Word has length 21 [2024-11-28 04:07:58,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:58,504 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 151 transitions. [2024-11-28 04:07:58,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:58,505 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 151 transitions. [2024-11-28 04:07:58,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-28 04:07:58,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:58,506 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:58,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 04:07:58,506 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:07:58,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:58,507 INFO L85 PathProgramCache]: Analyzing trace with hash 686151285, now seen corresponding path program 1 times [2024-11-28 04:07:58,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:58,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130387191] [2024-11-28 04:07:58,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:58,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:58,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:07:58,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:58,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130387191] [2024-11-28 04:07:58,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130387191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:58,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562078660] [2024-11-28 04:07:58,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:58,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:58,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:58,773 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:58,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:07:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:58,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:07:58,827 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:59,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:07:59,060 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:59,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562078660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:59,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:59,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-28 04:07:59,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283065306] [2024-11-28 04:07:59,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:59,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:59,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:59,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:59,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:07:59,062 INFO L87 Difference]: Start difference. First operand 120 states and 151 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:59,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:59,286 INFO L93 Difference]: Finished difference Result 123 states and 155 transitions. [2024-11-28 04:07:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:07:59,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-28 04:07:59,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:59,288 INFO L225 Difference]: With dead ends: 123 [2024-11-28 04:07:59,288 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 04:07:59,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:07:59,289 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 80 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:59,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 74 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:07:59,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 04:07:59,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2024-11-28 04:07:59,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.5164835164835164) internal successors, (138), 111 states have internal predecessors, (138), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:07:59,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 150 transitions. [2024-11-28 04:07:59,308 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 150 transitions. Word has length 22 [2024-11-28 04:07:59,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:59,309 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 150 transitions. [2024-11-28 04:07:59,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:59,309 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 150 transitions. [2024-11-28 04:07:59,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 04:07:59,310 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:59,310 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:59,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:59,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:59,511 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:07:59,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:59,512 INFO L85 PathProgramCache]: Analyzing trace with hash -204146584, now seen corresponding path program 1 times [2024-11-28 04:07:59,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:59,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007286010] [2024-11-28 04:07:59,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:59,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:07:59,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [757134425] [2024-11-28 04:07:59,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:59,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:59,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:59,530 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:59,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:07:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:59,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:07:59,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:59,796 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:07:59,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:59,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:59,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007286010] [2024-11-28 04:07:59,799 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:07:59,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757134425] [2024-11-28 04:07:59,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757134425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:59,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:07:59,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:07:59,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835644608] [2024-11-28 04:07:59,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:59,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:59,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:59,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:59,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:59,806 INFO L87 Difference]: Start difference. First operand 120 states and 150 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:59,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:59,952 INFO L93 Difference]: Finished difference Result 121 states and 150 transitions. [2024-11-28 04:07:59,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:07:59,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-28 04:07:59,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:59,954 INFO L225 Difference]: With dead ends: 121 [2024-11-28 04:07:59,956 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 04:07:59,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:07:59,958 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 73 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:59,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 79 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:07:59,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 04:07:59,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-28 04:07:59,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 91 states have (on average 1.5054945054945055) internal successors, (137), 111 states have internal predecessors, (137), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:07:59,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 149 transitions. [2024-11-28 04:07:59,984 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 149 transitions. Word has length 23 [2024-11-28 04:07:59,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:59,984 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 149 transitions. [2024-11-28 04:07:59,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:07:59,987 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 149 transitions. [2024-11-28 04:07:59,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-28 04:07:59,987 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:59,988 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:00,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 04:08:00,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:00,189 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:00,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:00,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1383870268, now seen corresponding path program 1 times [2024-11-28 04:08:00,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:00,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678676529] [2024-11-28 04:08:00,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:00,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:00,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:00,403 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:08:00,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:00,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678676529] [2024-11-28 04:08:00,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678676529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:00,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943560966] [2024-11-28 04:08:00,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:00,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:00,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:00,407 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:00,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:08:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:00,469 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:08:00,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:00,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:08:00,563 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:00,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:08:00,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943560966] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:00,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:00,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-28 04:08:00,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792621938] [2024-11-28 04:08:00,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:00,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:08:00,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:00,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:08:00,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:08:00,735 INFO L87 Difference]: Start difference. First operand 120 states and 149 transitions. Second operand has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:08:00,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:00,964 INFO L93 Difference]: Finished difference Result 190 states and 234 transitions. [2024-11-28 04:08:00,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:08:00,965 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 35 [2024-11-28 04:08:00,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:00,966 INFO L225 Difference]: With dead ends: 190 [2024-11-28 04:08:00,967 INFO L226 Difference]: Without dead ends: 188 [2024-11-28 04:08:00,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:08:00,968 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 265 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:00,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 279 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:08:00,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-28 04:08:00,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 167. [2024-11-28 04:08:01,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 136 states have (on average 1.5073529411764706) internal successors, (205), 156 states have internal predecessors, (205), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:08:01,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 221 transitions. [2024-11-28 04:08:01,001 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 221 transitions. Word has length 35 [2024-11-28 04:08:01,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:01,002 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 221 transitions. [2024-11-28 04:08:01,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:08:01,002 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 221 transitions. [2024-11-28 04:08:01,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-28 04:08:01,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:01,007 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-28 04:08:01,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:08:01,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:01,208 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:01,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:01,209 INFO L85 PathProgramCache]: Analyzing trace with hash -49694560, now seen corresponding path program 1 times [2024-11-28 04:08:01,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:01,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787772847] [2024-11-28 04:08:01,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:01,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:01,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:01,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787772847] [2024-11-28 04:08:01,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787772847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:08:01,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:08:01,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:08:01,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545399990] [2024-11-28 04:08:01,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:08:01,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:08:01,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:01,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:08:01,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:08:01,293 INFO L87 Difference]: Start difference. First operand 167 states and 221 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:01,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:01,380 INFO L93 Difference]: Finished difference Result 177 states and 230 transitions. [2024-11-28 04:08:01,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:08:01,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-28 04:08:01,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:01,382 INFO L225 Difference]: With dead ends: 177 [2024-11-28 04:08:01,382 INFO L226 Difference]: Without dead ends: 175 [2024-11-28 04:08:01,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:08:01,385 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 78 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:01,386 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 78 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:08:01,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-28 04:08:01,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 165. [2024-11-28 04:08:01,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 136 states have (on average 1.4705882352941178) internal successors, (200), 154 states have internal predecessors, (200), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:08:01,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 216 transitions. [2024-11-28 04:08:01,414 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 216 transitions. Word has length 36 [2024-11-28 04:08:01,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:01,415 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 216 transitions. [2024-11-28 04:08:01,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:01,416 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 216 transitions. [2024-11-28 04:08:01,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-28 04:08:01,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:01,420 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:01,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:08:01,420 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:01,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:01,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1313118953, now seen corresponding path program 1 times [2024-11-28 04:08:01,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:01,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200695495] [2024-11-28 04:08:01,421 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:01,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:01,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:01,552 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:01,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:01,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200695495] [2024-11-28 04:08:01,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200695495] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:01,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719912952] [2024-11-28 04:08:01,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:01,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:01,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:01,557 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:01,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:08:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:01,625 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:08:01,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:01,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:01,720 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:08:01,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719912952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:08:01,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:01,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-28 04:08:01,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543756651] [2024-11-28 04:08:01,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:08:01,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:08:01,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:01,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:08:01,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:08:01,724 INFO L87 Difference]: Start difference. First operand 165 states and 216 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:01,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:01,824 INFO L93 Difference]: Finished difference Result 175 states and 225 transitions. [2024-11-28 04:08:01,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:08:01,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-11-28 04:08:01,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:01,827 INFO L225 Difference]: With dead ends: 175 [2024-11-28 04:08:01,830 INFO L226 Difference]: Without dead ends: 174 [2024-11-28 04:08:01,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:08:01,831 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 40 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:01,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 187 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:08:01,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-28 04:08:01,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 164. [2024-11-28 04:08:01,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 136 states have (on average 1.4338235294117647) internal successors, (195), 153 states have internal predecessors, (195), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:08:01,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 211 transitions. [2024-11-28 04:08:01,857 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 211 transitions. Word has length 39 [2024-11-28 04:08:01,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:01,858 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 211 transitions. [2024-11-28 04:08:01,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:01,858 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 211 transitions. [2024-11-28 04:08:01,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-28 04:08:01,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:01,860 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:01,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 04:08:02,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:02,061 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:02,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:02,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1227112888, now seen corresponding path program 1 times [2024-11-28 04:08:02,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:02,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903618789] [2024-11-28 04:08:02,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:02,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:08:02,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1280561236] [2024-11-28 04:08:02,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:02,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:02,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:02,086 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:02,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:08:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:02,155 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:08:02,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:02,481 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:02,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:02,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903618789] [2024-11-28 04:08:02,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:02,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280561236] [2024-11-28 04:08:02,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280561236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:02,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:02,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:08:02,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866865581] [2024-11-28 04:08:02,776 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:02,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:08:02,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:02,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:08:02,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:08:02,778 INFO L87 Difference]: Start difference. First operand 164 states and 211 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:03,000 INFO L93 Difference]: Finished difference Result 171 states and 214 transitions. [2024-11-28 04:08:03,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:08:03,001 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-11-28 04:08:03,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:03,002 INFO L225 Difference]: With dead ends: 171 [2024-11-28 04:08:03,003 INFO L226 Difference]: Without dead ends: 164 [2024-11-28 04:08:03,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:08:03,004 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 55 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:03,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 70 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:08:03,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-28 04:08:03,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2024-11-28 04:08:03,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 149 states have internal predecessors, (182), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 04:08:03,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 198 transitions. [2024-11-28 04:08:03,023 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 198 transitions. Word has length 41 [2024-11-28 04:08:03,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:03,024 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 198 transitions. [2024-11-28 04:08:03,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:03,024 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 198 transitions. [2024-11-28 04:08:03,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 04:08:03,025 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:03,026 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] [2024-11-28 04:08:03,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:03,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 04:08:03,230 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:03,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:03,230 INFO L85 PathProgramCache]: Analyzing trace with hash -614206083, now seen corresponding path program 1 times [2024-11-28 04:08:03,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:03,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496113873] [2024-11-28 04:08:03,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:03,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:08:03,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2125530955] [2024-11-28 04:08:03,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:03,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:03,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:03,261 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:03,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:08:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:03,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:08:03,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:03,627 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:03,628 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:03,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:03,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496113873] [2024-11-28 04:08:03,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:03,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125530955] [2024-11-28 04:08:03,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125530955] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:03,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:03,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-28 04:08:03,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048734582] [2024-11-28 04:08:03,992 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:03,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:08:03,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:03,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:08:03,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:08:03,994 INFO L87 Difference]: Start difference. First operand 160 states and 198 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:04,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:04,221 INFO L93 Difference]: Finished difference Result 216 states and 266 transitions. [2024-11-28 04:08:04,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:08:04,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-11-28 04:08:04,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:04,224 INFO L225 Difference]: With dead ends: 216 [2024-11-28 04:08:04,224 INFO L226 Difference]: Without dead ends: 211 [2024-11-28 04:08:04,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:08:04,225 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 104 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:04,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 116 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:08:04,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-28 04:08:04,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 203. [2024-11-28 04:08:04,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 190 states have internal predecessors, (233), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:08:04,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 253 transitions. [2024-11-28 04:08:04,250 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 253 transitions. Word has length 42 [2024-11-28 04:08:04,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:04,250 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 253 transitions. [2024-11-28 04:08:04,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:04,251 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 253 transitions. [2024-11-28 04:08:04,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:08:04,252 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:04,252 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:04,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 04:08:04,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:04,453 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:04,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:04,453 INFO L85 PathProgramCache]: Analyzing trace with hash 324054416, now seen corresponding path program 1 times [2024-11-28 04:08:04,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:04,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214223616] [2024-11-28 04:08:04,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:04,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:04,613 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:04,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:04,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214223616] [2024-11-28 04:08:04,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214223616] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:04,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484213966] [2024-11-28 04:08:04,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:04,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:04,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:04,618 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:04,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:08:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:04,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:08:04,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:04,905 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:04,905 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:08:04,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484213966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:08:04,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:04,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-28 04:08:04,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982316266] [2024-11-28 04:08:04,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:08:04,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:08:04,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:04,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:08:04,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:08:04,908 INFO L87 Difference]: Start difference. First operand 203 states and 253 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:05,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:05,057 INFO L93 Difference]: Finished difference Result 203 states and 253 transitions. [2024-11-28 04:08:05,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:08:05,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2024-11-28 04:08:05,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:05,059 INFO L225 Difference]: With dead ends: 203 [2024-11-28 04:08:05,059 INFO L226 Difference]: Without dead ends: 201 [2024-11-28 04:08:05,060 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:08:05,060 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 31 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:05,061 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 79 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:08:05,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-28 04:08:05,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198. [2024-11-28 04:08:05,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 185 states have internal predecessors, (227), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:08:05,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 247 transitions. [2024-11-28 04:08:05,079 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 247 transitions. Word has length 43 [2024-11-28 04:08:05,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:05,079 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 247 transitions. [2024-11-28 04:08:05,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:05,080 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 247 transitions. [2024-11-28 04:08:05,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 04:08:05,080 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:05,081 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:05,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:08:05,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:08:05,282 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:05,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:05,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1455752361, now seen corresponding path program 1 times [2024-11-28 04:08:05,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:05,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305423839] [2024-11-28 04:08:05,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:05,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:05,535 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:05,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:05,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305423839] [2024-11-28 04:08:05,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305423839] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:05,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003706202] [2024-11-28 04:08:05,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:05,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:05,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:05,540 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:05,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:08:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:05,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:08:05,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:05,765 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:05,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003706202] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:05,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:08:05,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3] total 8 [2024-11-28 04:08:05,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907959212] [2024-11-28 04:08:05,917 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:05,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:08:05,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:05,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:08:05,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:08:05,918 INFO L87 Difference]: Start difference. First operand 198 states and 247 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:08:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:06,141 INFO L93 Difference]: Finished difference Result 206 states and 251 transitions. [2024-11-28 04:08:06,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:08:06,142 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2024-11-28 04:08:06,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:06,144 INFO L225 Difference]: With dead ends: 206 [2024-11-28 04:08:06,144 INFO L226 Difference]: Without dead ends: 198 [2024-11-28 04:08:06,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:08:06,145 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 26 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:06,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 140 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:08:06,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-28 04:08:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-28 04:08:06,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2685714285714285) internal successors, (222), 185 states have internal predecessors, (222), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:08:06,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 242 transitions. [2024-11-28 04:08:06,162 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 242 transitions. Word has length 44 [2024-11-28 04:08:06,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:06,162 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 242 transitions. [2024-11-28 04:08:06,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 9 states have internal predecessors, (65), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:08:06,163 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 242 transitions. [2024-11-28 04:08:06,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 04:08:06,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:06,164 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:06,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:08:06,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 04:08:06,365 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:06,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:06,365 INFO L85 PathProgramCache]: Analyzing trace with hash -2116317006, now seen corresponding path program 1 times [2024-11-28 04:08:06,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:06,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236241627] [2024-11-28 04:08:06,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:06,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:06,478 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:06,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:06,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236241627] [2024-11-28 04:08:06,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236241627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:08:06,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:08:06,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:08:06,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033345451] [2024-11-28 04:08:06,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:08:06,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:08:06,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:06,480 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:08:06,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:08:06,481 INFO L87 Difference]: Start difference. First operand 198 states and 242 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:06,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:06,639 INFO L93 Difference]: Finished difference Result 205 states and 249 transitions. [2024-11-28 04:08:06,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:08:06,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-11-28 04:08:06,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:06,642 INFO L225 Difference]: With dead ends: 205 [2024-11-28 04:08:06,642 INFO L226 Difference]: Without dead ends: 204 [2024-11-28 04:08:06,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:08:06,643 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:06,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 60 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:08:06,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2024-11-28 04:08:06,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 198. [2024-11-28 04:08:06,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 175 states have (on average 1.2457142857142858) internal successors, (218), 185 states have internal predecessors, (218), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:08:06,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 238 transitions. [2024-11-28 04:08:06,660 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 238 transitions. Word has length 45 [2024-11-28 04:08:06,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:06,660 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 238 transitions. [2024-11-28 04:08:06,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:06,661 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 238 transitions. [2024-11-28 04:08:06,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-28 04:08:06,661 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:06,662 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:06,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 04:08:06,662 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:06,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:06,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1252683012, now seen corresponding path program 1 times [2024-11-28 04:08:06,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:06,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565746201] [2024-11-28 04:08:06,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:06,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:06,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:06,905 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:08:06,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:06,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565746201] [2024-11-28 04:08:06,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565746201] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:06,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336746459] [2024-11-28 04:08:06,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:06,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:06,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:06,910 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:06,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:08:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:06,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:08:06,966 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:07,174 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:08:07,174 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:07,549 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:08:07,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336746459] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:07,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:07,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-11-28 04:08:07,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527937548] [2024-11-28 04:08:07,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:07,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:08:07,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:07,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:08:07,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:08:07,551 INFO L87 Difference]: Start difference. First operand 198 states and 238 transitions. Second operand has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:08:08,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:08,157 INFO L93 Difference]: Finished difference Result 208 states and 245 transitions. [2024-11-28 04:08:08,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:08:08,158 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45 [2024-11-28 04:08:08,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:08,159 INFO L225 Difference]: With dead ends: 208 [2024-11-28 04:08:08,159 INFO L226 Difference]: Without dead ends: 205 [2024-11-28 04:08:08,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 77 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:08:08,161 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 178 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:08,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 202 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:08:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2024-11-28 04:08:08,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 166. [2024-11-28 04:08:08,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 147 states have (on average 1.2244897959183674) internal successors, (180), 154 states have internal predecessors, (180), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:08:08,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 198 transitions. [2024-11-28 04:08:08,183 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 198 transitions. Word has length 45 [2024-11-28 04:08:08,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:08,183 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 198 transitions. [2024-11-28 04:08:08,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 04:08:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 198 transitions. [2024-11-28 04:08:08,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 04:08:08,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:08,185 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:08,197 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:08:08,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:08:08,386 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:08,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:08,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1181317685, now seen corresponding path program 1 times [2024-11-28 04:08:08,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:08,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526679646] [2024-11-28 04:08:08,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:08,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:08,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:08,460 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:08,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:08,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526679646] [2024-11-28 04:08:08,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526679646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:08:08,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:08:08,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:08:08,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041359177] [2024-11-28 04:08:08,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:08:08,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:08:08,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:08,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:08:08,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:08:08,464 INFO L87 Difference]: Start difference. First operand 166 states and 198 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:08,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:08,670 INFO L93 Difference]: Finished difference Result 173 states and 205 transitions. [2024-11-28 04:08:08,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:08:08,671 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 46 [2024-11-28 04:08:08,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:08,672 INFO L225 Difference]: With dead ends: 173 [2024-11-28 04:08:08,672 INFO L226 Difference]: Without dead ends: 172 [2024-11-28 04:08:08,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:08:08,673 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 4 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:08,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 72 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:08:08,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-28 04:08:08,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 166. [2024-11-28 04:08:08,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 147 states have (on average 1.1972789115646258) internal successors, (176), 154 states have internal predecessors, (176), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 04:08:08,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 194 transitions. [2024-11-28 04:08:08,690 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 194 transitions. Word has length 46 [2024-11-28 04:08:08,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:08,690 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 194 transitions. [2024-11-28 04:08:08,691 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), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:08,691 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 194 transitions. [2024-11-28 04:08:08,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 04:08:08,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:08,692 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:08,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 04:08:08,692 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:08,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:08,693 INFO L85 PathProgramCache]: Analyzing trace with hash -178467647, now seen corresponding path program 1 times [2024-11-28 04:08:08,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:08,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674809928] [2024-11-28 04:08:08,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:08,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:08,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:08:08,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [390643543] [2024-11-28 04:08:08,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:08,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:08,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:08,712 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:08,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:08:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:08,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:08:08,769 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:09,093 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:09,094 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:09,268 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:08:09,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:09,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674809928] [2024-11-28 04:08:09,269 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:09,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390643543] [2024-11-28 04:08:09,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390643543] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:09,269 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:08:09,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-28 04:08:09,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923510091] [2024-11-28 04:08:09,270 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:09,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:08:09,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:09,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:08:09,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:08:09,273 INFO L87 Difference]: Start difference. First operand 166 states and 194 transitions. Second operand has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:08:09,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:09,719 INFO L93 Difference]: Finished difference Result 273 states and 319 transitions. [2024-11-28 04:08:09,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:08:09,720 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 46 [2024-11-28 04:08:09,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:09,722 INFO L225 Difference]: With dead ends: 273 [2024-11-28 04:08:09,722 INFO L226 Difference]: Without dead ends: 190 [2024-11-28 04:08:09,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:08:09,724 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 93 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:09,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 121 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:08:09,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-11-28 04:08:09,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 184. [2024-11-28 04:08:09,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 165 states have (on average 1.1636363636363636) internal successors, (192), 171 states have internal predecessors, (192), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:08:09,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 212 transitions. [2024-11-28 04:08:09,742 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 212 transitions. Word has length 46 [2024-11-28 04:08:09,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:09,742 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 212 transitions. [2024-11-28 04:08:09,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.6) internal successors, (66), 11 states have internal predecessors, (66), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-28 04:08:09,743 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 212 transitions. [2024-11-28 04:08:09,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 04:08:09,743 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:09,744 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:09,755 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 04:08:09,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:09,945 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:09,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:09,946 INFO L85 PathProgramCache]: Analyzing trace with hash -750311292, now seen corresponding path program 2 times [2024-11-28 04:08:09,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:09,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650922913] [2024-11-28 04:08:09,947 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:09,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:09,971 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:09,971 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:08:09,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909231170] [2024-11-28 04:08:09,972 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:09,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:09,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:09,978 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:09,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:08:10,044 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:10,044 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:10,048 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:08:10,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:08:10,293 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:10,720 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:08:10,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:10,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650922913] [2024-11-28 04:08:10,721 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:10,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909231170] [2024-11-28 04:08:10,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909231170] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:10,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:08:10,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-28 04:08:10,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12620686] [2024-11-28 04:08:10,722 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:10,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:08:10,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:10,723 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:08:10,723 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:08:10,723 INFO L87 Difference]: Start difference. First operand 184 states and 212 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:08:11,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:11,658 INFO L93 Difference]: Finished difference Result 387 states and 459 transitions. [2024-11-28 04:08:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:08:11,659 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 65 [2024-11-28 04:08:11,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:11,662 INFO L225 Difference]: With dead ends: 387 [2024-11-28 04:08:11,662 INFO L226 Difference]: Without dead ends: 376 [2024-11-28 04:08:11,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:08:11,663 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 158 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:11,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 334 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:08:11,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2024-11-28 04:08:11,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 354. [2024-11-28 04:08:11,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 327 states have (on average 1.1681957186544343) internal successors, (382), 333 states have internal predecessors, (382), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:08:11,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 418 transitions. [2024-11-28 04:08:11,696 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 418 transitions. Word has length 65 [2024-11-28 04:08:11,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:11,697 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 418 transitions. [2024-11-28 04:08:11,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:08:11,697 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 418 transitions. [2024-11-28 04:08:11,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-28 04:08:11,698 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:11,698 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:11,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:11,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:11,903 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:11,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:11,903 INFO L85 PathProgramCache]: Analyzing trace with hash 287621926, now seen corresponding path program 2 times [2024-11-28 04:08:11,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:11,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620797517] [2024-11-28 04:08:11,903 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:11,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:11,922 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:11,922 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:12,142 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 04:08:12,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:12,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620797517] [2024-11-28 04:08:12,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620797517] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:12,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312054979] [2024-11-28 04:08:12,143 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:12,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:12,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:12,146 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:12,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:08:12,209 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:12,209 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:12,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:08:12,212 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:12,490 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:08:12,491 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:12,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312054979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:12,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:08:12,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 10 [2024-11-28 04:08:12,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232280519] [2024-11-28 04:08:12,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:12,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:08:12,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:12,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:08:12,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:08:12,643 INFO L87 Difference]: Start difference. First operand 354 states and 418 transitions. Second operand has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:08:13,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:13,012 INFO L93 Difference]: Finished difference Result 383 states and 450 transitions. [2024-11-28 04:08:13,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:08:13,013 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 67 [2024-11-28 04:08:13,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:13,015 INFO L225 Difference]: With dead ends: 383 [2024-11-28 04:08:13,016 INFO L226 Difference]: Without dead ends: 375 [2024-11-28 04:08:13,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:08:13,019 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 26 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:13,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 178 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:08:13,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-28 04:08:13,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2024-11-28 04:08:13,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 345 states have (on average 1.1623188405797102) internal successors, (401), 351 states have internal predecessors, (401), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:08:13,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 439 transitions. [2024-11-28 04:08:13,053 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 439 transitions. Word has length 67 [2024-11-28 04:08:13,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:13,054 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 439 transitions. [2024-11-28 04:08:13,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.1) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:08:13,054 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 439 transitions. [2024-11-28 04:08:13,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:08:13,060 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:13,061 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:13,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:08:13,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 04:08:13,265 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:13,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:13,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1353844745, now seen corresponding path program 3 times [2024-11-28 04:08:13,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:13,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263939080] [2024-11-28 04:08:13,265 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:08:13,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:13,291 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:08:13,291 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:13,513 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 6 proven. 81 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:08:13,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:13,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263939080] [2024-11-28 04:08:13,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263939080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:13,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727632667] [2024-11-28 04:08:13,514 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:08:13,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:13,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:13,516 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:13,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:08:13,569 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 04:08:13,570 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:13,571 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:08:13,572 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:13,767 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 04:08:13,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:08:13,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727632667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:08:13,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:13,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-28 04:08:13,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138404126] [2024-11-28 04:08:13,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:08:13,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:08:13,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:13,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:08:13,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:08:13,770 INFO L87 Difference]: Start difference. First operand 373 states and 439 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:13,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:13,894 INFO L93 Difference]: Finished difference Result 381 states and 443 transitions. [2024-11-28 04:08:13,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:08:13,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 90 [2024-11-28 04:08:13,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:13,897 INFO L225 Difference]: With dead ends: 381 [2024-11-28 04:08:13,897 INFO L226 Difference]: Without dead ends: 374 [2024-11-28 04:08:13,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:08:13,899 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 30 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:13,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 79 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:08:13,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2024-11-28 04:08:13,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 370. [2024-11-28 04:08:13,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 342 states have (on average 1.1491228070175439) internal successors, (393), 348 states have internal predecessors, (393), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-28 04:08:13,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 431 transitions. [2024-11-28 04:08:13,929 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 431 transitions. Word has length 90 [2024-11-28 04:08:13,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:13,929 INFO L471 AbstractCegarLoop]: Abstraction has 370 states and 431 transitions. [2024-11-28 04:08:13,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 04:08:13,930 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 431 transitions. [2024-11-28 04:08:13,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 04:08:13,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:13,931 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:13,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:08:14,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 04:08:14,132 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:14,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:14,133 INFO L85 PathProgramCache]: Analyzing trace with hash 573888211, now seen corresponding path program 1 times [2024-11-28 04:08:14,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:14,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59300697] [2024-11-28 04:08:14,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:14,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:14,392 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:08:14,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:14,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59300697] [2024-11-28 04:08:14,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59300697] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:14,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772985641] [2024-11-28 04:08:14,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:14,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:14,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:14,396 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:14,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:08:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:14,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:08:14,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:08:14,616 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:14,962 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 6 proven. 73 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:08:14,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772985641] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:14,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:14,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2024-11-28 04:08:14,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831159165] [2024-11-28 04:08:14,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:14,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:08:14,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:14,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:08:14,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:08:14,966 INFO L87 Difference]: Start difference. First operand 370 states and 431 transitions. Second operand has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:08:15,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:15,881 INFO L93 Difference]: Finished difference Result 1075 states and 1268 transitions. [2024-11-28 04:08:15,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 04:08:15,882 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 90 [2024-11-28 04:08:15,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:15,888 INFO L225 Difference]: With dead ends: 1075 [2024-11-28 04:08:15,888 INFO L226 Difference]: Without dead ends: 1045 [2024-11-28 04:08:15,890 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=258, Invalid=612, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:08:15,890 INFO L435 NwaCegarLoop]: 25 mSDtfsCounter, 165 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:15,891 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 236 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:08:15,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2024-11-28 04:08:15,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 973. [2024-11-28 04:08:15,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 919 states have (on average 1.11860718171926) internal successors, (1028), 925 states have internal predecessors, (1028), 45 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 04:08:15,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1118 transitions. [2024-11-28 04:08:15,982 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1118 transitions. Word has length 90 [2024-11-28 04:08:15,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:15,983 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1118 transitions. [2024-11-28 04:08:15,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.928571428571429) internal successors, (139), 15 states have internal predecessors, (139), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:08:15,983 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1118 transitions. [2024-11-28 04:08:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-28 04:08:15,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:15,986 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:15,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:16,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-28 04:08:16,187 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:16,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:16,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1058690043, now seen corresponding path program 1 times [2024-11-28 04:08:16,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:16,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123775369] [2024-11-28 04:08:16,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:16,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:16,338 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:08:16,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:16,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123775369] [2024-11-28 04:08:16,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123775369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:16,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51779861] [2024-11-28 04:08:16,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:16,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:16,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:16,343 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:16,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:08:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:16,416 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:08:16,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:08:16,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:16,835 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:08:16,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51779861] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:16,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:16,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 04:08:16,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484955148] [2024-11-28 04:08:16,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:16,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:08:16,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:16,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:08:16,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:08:16,838 INFO L87 Difference]: Start difference. First operand 973 states and 1118 transitions. Second operand has 11 states, 10 states have (on average 16.1) internal successors, (161), 11 states have internal predecessors, (161), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:08:17,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:17,233 INFO L93 Difference]: Finished difference Result 1831 states and 2195 transitions. [2024-11-28 04:08:17,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:08:17,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.1) internal successors, (161), 11 states have internal predecessors, (161), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 100 [2024-11-28 04:08:17,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:17,242 INFO L225 Difference]: With dead ends: 1831 [2024-11-28 04:08:17,243 INFO L226 Difference]: Without dead ends: 1829 [2024-11-28 04:08:17,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:08:17,244 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 72 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:17,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 175 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:08:17,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1829 states. [2024-11-28 04:08:17,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1829 to 1801. [2024-11-28 04:08:17,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1706 states have (on average 1.104337631887456) internal successors, (1884), 1711 states have internal predecessors, (1884), 87 states have call successors, (87), 2 states have call predecessors, (87), 2 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-28 04:08:17,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2058 transitions. [2024-11-28 04:08:17,387 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2058 transitions. Word has length 100 [2024-11-28 04:08:17,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:17,387 INFO L471 AbstractCegarLoop]: Abstraction has 1801 states and 2058 transitions. [2024-11-28 04:08:17,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.1) internal successors, (161), 11 states have internal predecessors, (161), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:08:17,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2058 transitions. [2024-11-28 04:08:17,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 04:08:17,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:17,392 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:17,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:08:17,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 04:08:17,594 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:17,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:17,594 INFO L85 PathProgramCache]: Analyzing trace with hash 3666481, now seen corresponding path program 1 times [2024-11-28 04:08:17,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:17,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213626275] [2024-11-28 04:08:17,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:17,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:17,713 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-28 04:08:17,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:17,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213626275] [2024-11-28 04:08:17,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213626275] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:17,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644089905] [2024-11-28 04:08:17,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:17,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:17,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:17,717 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:17,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:08:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:17,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:08:17,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:17,965 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 78 proven. 30 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 04:08:17,965 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:18,134 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 66 proven. 30 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 04:08:18,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644089905] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:18,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:18,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 10 [2024-11-28 04:08:18,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266980913] [2024-11-28 04:08:18,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:18,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:08:18,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:18,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:08:18,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:08:18,136 INFO L87 Difference]: Start difference. First operand 1801 states and 2058 transitions. Second operand has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-28 04:08:18,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:18,907 INFO L93 Difference]: Finished difference Result 2895 states and 3347 transitions. [2024-11-28 04:08:18,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:08:18,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 103 [2024-11-28 04:08:18,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:18,919 INFO L225 Difference]: With dead ends: 2895 [2024-11-28 04:08:18,919 INFO L226 Difference]: Without dead ends: 2342 [2024-11-28 04:08:18,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 197 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:08:18,924 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 147 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:18,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 264 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:08:18,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2342 states. [2024-11-28 04:08:19,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2342 to 1944. [2024-11-28 04:08:19,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1944 states, 1841 states have (on average 1.102661596958175) internal successors, (2030), 1846 states have internal predecessors, (2030), 95 states have call successors, (95), 2 states have call predecessors, (95), 2 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-28 04:08:19,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2220 transitions. [2024-11-28 04:08:19,120 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2220 transitions. Word has length 103 [2024-11-28 04:08:19,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:19,121 INFO L471 AbstractCegarLoop]: Abstraction has 1944 states and 2220 transitions. [2024-11-28 04:08:19,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 15.6) internal successors, (156), 10 states have internal predecessors, (156), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-11-28 04:08:19,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2220 transitions. [2024-11-28 04:08:19,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 04:08:19,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:19,129 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, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:19,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:19,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 04:08:19,330 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:19,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:19,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1196991483, now seen corresponding path program 1 times [2024-11-28 04:08:19,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:19,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370679859] [2024-11-28 04:08:19,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:19,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:08:19,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:19,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370679859] [2024-11-28 04:08:19,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370679859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:19,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047458756] [2024-11-28 04:08:19,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:19,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:19,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:19,460 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:19,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:08:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:19,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:08:19,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:19,681 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:08:19,681 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:19,871 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:08:19,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047458756] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:19,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:19,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-28 04:08:19,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813568748] [2024-11-28 04:08:19,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:19,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:08:19,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:19,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:08:19,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:08:19,875 INFO L87 Difference]: Start difference. First operand 1944 states and 2220 transitions. Second operand has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:08:20,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:20,289 INFO L93 Difference]: Finished difference Result 2883 states and 3341 transitions. [2024-11-28 04:08:20,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:08:20,290 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 103 [2024-11-28 04:08:20,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:20,303 INFO L225 Difference]: With dead ends: 2883 [2024-11-28 04:08:20,304 INFO L226 Difference]: Without dead ends: 2882 [2024-11-28 04:08:20,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:08:20,306 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 110 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:20,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 245 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:08:20,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2024-11-28 04:08:20,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 2834. [2024-11-28 04:08:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2834 states, 2684 states have (on average 1.119225037257824) internal successors, (3004), 2689 states have internal predecessors, (3004), 142 states have call successors, (142), 2 states have call predecessors, (142), 2 states have return successors, (142), 142 states have call predecessors, (142), 142 states have call successors, (142) [2024-11-28 04:08:20,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 3288 transitions. [2024-11-28 04:08:20,583 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 3288 transitions. Word has length 103 [2024-11-28 04:08:20,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:20,584 INFO L471 AbstractCegarLoop]: Abstraction has 2834 states and 3288 transitions. [2024-11-28 04:08:20,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 16.7) internal successors, (167), 11 states have internal predecessors, (167), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:08:20,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 3288 transitions. [2024-11-28 04:08:20,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 04:08:20,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:20,588 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:20,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:20,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:08:20,790 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:20,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:20,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1075382349, now seen corresponding path program 1 times [2024-11-28 04:08:20,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:20,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364977360] [2024-11-28 04:08:20,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:20,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:20,998 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 68 proven. 128 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:08:20,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:20,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364977360] [2024-11-28 04:08:20,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364977360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:20,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136966541] [2024-11-28 04:08:20,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:20,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:20,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:21,001 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:21,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:08:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:21,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:08:21,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:21,381 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 83 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:08:21,381 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 83 proven. 113 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:08:21,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136966541] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:21,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:21,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-11-28 04:08:21,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858272660] [2024-11-28 04:08:21,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:21,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:08:21,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:21,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:08:21,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:08:21,632 INFO L87 Difference]: Start difference. First operand 2834 states and 3288 transitions. Second operand has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:08:22,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:22,319 INFO L93 Difference]: Finished difference Result 5701 states and 6722 transitions. [2024-11-28 04:08:22,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:08:22,320 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 134 [2024-11-28 04:08:22,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:22,342 INFO L225 Difference]: With dead ends: 5701 [2024-11-28 04:08:22,342 INFO L226 Difference]: Without dead ends: 4282 [2024-11-28 04:08:22,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 259 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:08:22,351 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 91 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:22,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 358 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:08:22,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2024-11-28 04:08:22,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 3102. [2024-11-28 04:08:22,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3102 states, 2938 states have (on average 1.11572498298162) internal successors, (3278), 2943 states have internal predecessors, (3278), 156 states have call successors, (156), 2 states have call predecessors, (156), 2 states have return successors, (156), 156 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-28 04:08:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3102 states to 3102 states and 3590 transitions. [2024-11-28 04:08:22,631 INFO L78 Accepts]: Start accepts. Automaton has 3102 states and 3590 transitions. Word has length 134 [2024-11-28 04:08:22,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:22,632 INFO L471 AbstractCegarLoop]: Abstraction has 3102 states and 3590 transitions. [2024-11-28 04:08:22,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-11-28 04:08:22,634 INFO L276 IsEmpty]: Start isEmpty. Operand 3102 states and 3590 transitions. [2024-11-28 04:08:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:08:22,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:22,638 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:22,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:22,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:08:22,839 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:22,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:22,840 INFO L85 PathProgramCache]: Analyzing trace with hash 775557188, now seen corresponding path program 2 times [2024-11-28 04:08:22,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:22,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427128404] [2024-11-28 04:08:22,840 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:22,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:22,903 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:22,903 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:08:22,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827651896] [2024-11-28 04:08:22,908 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:22,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:22,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:22,911 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:22,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:08:23,011 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:23,011 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:23,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:08:23,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 240 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-28 04:08:23,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:28,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:28,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427128404] [2024-11-28 04:08:28,363 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:28,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827651896] [2024-11-28 04:08:28,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827651896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:28,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:28,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:08:28,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733325472] [2024-11-28 04:08:28,364 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:28,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:08:28,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:28,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:08:28,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=92, Unknown=1, NotChecked=0, Total=132 [2024-11-28 04:08:28,365 INFO L87 Difference]: Start difference. First operand 3102 states and 3590 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:08:28,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:28,862 INFO L93 Difference]: Finished difference Result 3389 states and 3929 transitions. [2024-11-28 04:08:28,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:08:28,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 157 [2024-11-28 04:08:28,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:28,879 INFO L225 Difference]: With dead ends: 3389 [2024-11-28 04:08:28,879 INFO L226 Difference]: Without dead ends: 3385 [2024-11-28 04:08:28,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=39, Invalid=92, Unknown=1, NotChecked=0, Total=132 [2024-11-28 04:08:28,882 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 27 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:28,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 235 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:08:28,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3385 states. [2024-11-28 04:08:29,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3385 to 3121. [2024-11-28 04:08:29,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3121 states, 2956 states have (on average 1.1160351826792962) internal successors, (3299), 2961 states have internal predecessors, (3299), 157 states have call successors, (157), 2 states have call predecessors, (157), 2 states have return successors, (157), 157 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-28 04:08:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3121 states to 3121 states and 3613 transitions. [2024-11-28 04:08:29,181 INFO L78 Accepts]: Start accepts. Automaton has 3121 states and 3613 transitions. Word has length 157 [2024-11-28 04:08:29,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:29,181 INFO L471 AbstractCegarLoop]: Abstraction has 3121 states and 3613 transitions. [2024-11-28 04:08:29,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 8 states have internal predecessors, (92), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:08:29,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3121 states and 3613 transitions. [2024-11-28 04:08:29,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:08:29,185 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:29,187 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:29,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:29,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 04:08:29,392 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:29,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:29,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1260023578, now seen corresponding path program 3 times [2024-11-28 04:08:29,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:29,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546667502] [2024-11-28 04:08:29,393 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:08:29,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:29,450 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:08:29,451 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:08:29,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1528195719] [2024-11-28 04:08:29,453 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:08:29,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:29,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:29,456 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:29,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:08:29,552 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-28 04:08:29,552 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:29,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:08:29,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:29,968 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-28 04:08:29,968 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:30,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:30,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546667502] [2024-11-28 04:08:30,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:30,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528195719] [2024-11-28 04:08:30,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528195719] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:30,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:30,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 04:08:30,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753934985] [2024-11-28 04:08:30,326 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:30,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:08:30,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:30,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:08:30,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:08:30,327 INFO L87 Difference]: Start difference. First operand 3121 states and 3613 transitions. Second operand has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:08:31,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:31,153 INFO L93 Difference]: Finished difference Result 4690 states and 5481 transitions. [2024-11-28 04:08:31,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:08:31,154 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 157 [2024-11-28 04:08:31,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:31,166 INFO L225 Difference]: With dead ends: 4690 [2024-11-28 04:08:31,167 INFO L226 Difference]: Without dead ends: 3305 [2024-11-28 04:08:31,170 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:08:31,174 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 110 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:31,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 312 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:08:31,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2024-11-28 04:08:31,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 3028. [2024-11-28 04:08:31,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3028 states, 2866 states have (on average 1.1175854849965108) internal successors, (3203), 2871 states have internal predecessors, (3203), 154 states have call successors, (154), 2 states have call predecessors, (154), 2 states have return successors, (154), 154 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-28 04:08:31,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 3511 transitions. [2024-11-28 04:08:31,438 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 3511 transitions. Word has length 157 [2024-11-28 04:08:31,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:31,439 INFO L471 AbstractCegarLoop]: Abstraction has 3028 states and 3511 transitions. [2024-11-28 04:08:31,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.857142857142858) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-11-28 04:08:31,440 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 3511 transitions. [2024-11-28 04:08:31,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-28 04:08:31,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:31,443 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:31,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:08:31,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 04:08:31,649 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:31,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:31,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1308493892, now seen corresponding path program 3 times [2024-11-28 04:08:31,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:31,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904838561] [2024-11-28 04:08:31,651 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:08:31,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:31,711 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:08:31,711 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:08:31,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1415211424] [2024-11-28 04:08:31,713 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:08:31,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:31,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:31,715 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:31,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:08:31,784 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-28 04:08:31,784 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:31,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:08:31,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:31,886 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 131 proven. 8 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-28 04:08:31,886 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:32,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:32,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904838561] [2024-11-28 04:08:32,233 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:32,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1415211424] [2024-11-28 04:08:32,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1415211424] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:32,234 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:32,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-28 04:08:32,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117900104] [2024-11-28 04:08:32,235 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:32,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:08:32,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:32,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:08:32,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:08:32,237 INFO L87 Difference]: Start difference. First operand 3028 states and 3511 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:08:32,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:32,545 INFO L93 Difference]: Finished difference Result 3863 states and 4500 transitions. [2024-11-28 04:08:32,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:08:32,545 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 157 [2024-11-28 04:08:32,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:32,553 INFO L225 Difference]: With dead ends: 3863 [2024-11-28 04:08:32,554 INFO L226 Difference]: Without dead ends: 2275 [2024-11-28 04:08:32,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:08:32,557 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 31 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:32,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 100 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:08:32,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2024-11-28 04:08:32,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2274. [2024-11-28 04:08:32,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 2147 states have (on average 1.1187703772706101) internal successors, (2402), 2152 states have internal predecessors, (2402), 119 states have call successors, (119), 2 states have call predecessors, (119), 2 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) [2024-11-28 04:08:32,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 2640 transitions. [2024-11-28 04:08:32,736 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 2640 transitions. Word has length 157 [2024-11-28 04:08:32,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:32,737 INFO L471 AbstractCegarLoop]: Abstraction has 2274 states and 2640 transitions. [2024-11-28 04:08:32,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-28 04:08:32,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 2640 transitions. [2024-11-28 04:08:32,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-28 04:08:32,741 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:32,741 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:32,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:32,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:32,942 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:32,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:32,943 INFO L85 PathProgramCache]: Analyzing trace with hash 59873127, now seen corresponding path program 4 times [2024-11-28 04:08:32,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:32,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117848277] [2024-11-28 04:08:32,943 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:08:32,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:32,997 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:08:32,998 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 99 proven. 302 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:08:33,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:33,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117848277] [2024-11-28 04:08:33,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117848277] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:33,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128122816] [2024-11-28 04:08:33,457 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:08:33,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:33,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:33,459 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:33,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:08:33,560 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:08:33,561 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:33,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:08:33,568 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:34,066 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 148 proven. 253 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:08:34,067 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:34,462 INFO L134 CoverageAnalysis]: Checked inductivity of 489 backedges. 148 proven. 253 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-28 04:08:34,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128122816] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:34,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:34,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-11-28 04:08:34,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948163574] [2024-11-28 04:08:34,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:34,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:08:34,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:34,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:08:34,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:08:34,465 INFO L87 Difference]: Start difference. First operand 2274 states and 2640 transitions. Second operand has 15 states, 15 states have (on average 15.2) internal successors, (228), 15 states have internal predecessors, (228), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-28 04:08:35,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:35,584 INFO L93 Difference]: Finished difference Result 4698 states and 5531 transitions. [2024-11-28 04:08:35,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:08:35,585 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 15.2) internal successors, (228), 15 states have internal predecessors, (228), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 180 [2024-11-28 04:08:35,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:35,599 INFO L225 Difference]: With dead ends: 4698 [2024-11-28 04:08:35,599 INFO L226 Difference]: Without dead ends: 3490 [2024-11-28 04:08:35,602 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 348 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:08:35,603 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 73 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:35,603 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 791 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:08:35,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3490 states. [2024-11-28 04:08:35,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3490 to 2675. [2024-11-28 04:08:35,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2675 states, 2527 states have (on average 1.116739216462208) internal successors, (2822), 2532 states have internal predecessors, (2822), 140 states have call successors, (140), 2 states have call predecessors, (140), 2 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-11-28 04:08:35,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 3102 transitions. [2024-11-28 04:08:35,905 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 3102 transitions. Word has length 180 [2024-11-28 04:08:35,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:35,906 INFO L471 AbstractCegarLoop]: Abstraction has 2675 states and 3102 transitions. [2024-11-28 04:08:35,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 15.2) internal successors, (228), 15 states have internal predecessors, (228), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-11-28 04:08:35,906 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 3102 transitions. [2024-11-28 04:08:35,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-28 04:08:35,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:35,911 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:35,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:36,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-28 04:08:36,111 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:36,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:36,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2140658285, now seen corresponding path program 2 times [2024-11-28 04:08:36,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:36,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75583062] [2024-11-28 04:08:36,112 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:36,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:36,170 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:36,170 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:37,089 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 50 proven. 59 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2024-11-28 04:08:37,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:37,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75583062] [2024-11-28 04:08:37,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75583062] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:37,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762351662] [2024-11-28 04:08:37,090 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:37,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:37,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:37,093 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:37,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:08:37,205 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:37,205 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:37,207 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:08:37,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:37,742 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 18 proven. 431 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 04:08:37,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 18 proven. 431 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-28 04:08:38,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762351662] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:38,414 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:38,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 30 [2024-11-28 04:08:38,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150386245] [2024-11-28 04:08:38,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:38,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-28 04:08:38,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:38,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-28 04:08:38,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:08:38,417 INFO L87 Difference]: Start difference. First operand 2675 states and 3102 transitions. Second operand has 31 states, 30 states have (on average 10.633333333333333) internal successors, (319), 30 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2024-11-28 04:08:44,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:44,173 INFO L93 Difference]: Finished difference Result 5754 states and 6640 transitions. [2024-11-28 04:08:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2024-11-28 04:08:44,173 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 10.633333333333333) internal successors, (319), 30 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) Word has length 182 [2024-11-28 04:08:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:44,191 INFO L225 Difference]: With dead ends: 5754 [2024-11-28 04:08:44,191 INFO L226 Difference]: Without dead ends: 5716 [2024-11-28 04:08:44,197 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 353 SyntacticMatches, 1 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8029 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=4760, Invalid=15262, Unknown=0, NotChecked=0, Total=20022 [2024-11-28 04:08:44,197 INFO L435 NwaCegarLoop]: 23 mSDtfsCounter, 1184 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:44,198 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1184 Valid, 360 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:08:44,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5716 states. [2024-11-28 04:08:44,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5716 to 2588. [2024-11-28 04:08:44,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2588 states, 2445 states have (on average 1.0478527607361963) internal successors, (2562), 2448 states have internal predecessors, (2562), 137 states have call successors, (137), 2 states have call predecessors, (137), 2 states have return successors, (137), 137 states have call predecessors, (137), 137 states have call successors, (137) [2024-11-28 04:08:44,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2588 states to 2588 states and 2836 transitions. [2024-11-28 04:08:44,486 INFO L78 Accepts]: Start accepts. Automaton has 2588 states and 2836 transitions. Word has length 182 [2024-11-28 04:08:44,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:44,488 INFO L471 AbstractCegarLoop]: Abstraction has 2588 states and 2836 transitions. [2024-11-28 04:08:44,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 10.633333333333333) internal successors, (319), 30 states have internal predecessors, (319), 18 states have call successors, (19), 1 states have call predecessors, (19), 3 states have return successors, (20), 18 states have call predecessors, (20), 18 states have call successors, (20) [2024-11-28 04:08:44,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2588 states and 2836 transitions. [2024-11-28 04:08:44,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-28 04:08:44,494 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:44,494 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:44,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 04:08:44,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:44,695 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:44,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:44,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1809512944, now seen corresponding path program 5 times [2024-11-28 04:08:44,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:44,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262525551] [2024-11-28 04:08:44,697 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:08:44,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:44,762 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 04:08:44,763 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:08:44,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306274724] [2024-11-28 04:08:44,764 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:08:44,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:44,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:44,769 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:44,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:08:44,902 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-11-28 04:08:44,902 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:44,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-28 04:08:44,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:48,196 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 12 proven. 544 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-28 04:08:48,196 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:48,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:48,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262525551] [2024-11-28 04:08:48,712 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:48,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306274724] [2024-11-28 04:08:48,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306274724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:48,712 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:48,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2024-11-28 04:08:48,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693005686] [2024-11-28 04:08:48,713 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:48,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 04:08:48,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:48,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 04:08:48,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1157, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:08:48,715 INFO L87 Difference]: Start difference. First operand 2588 states and 2836 transitions. Second operand has 33 states, 32 states have (on average 5.15625) internal successors, (165), 31 states have internal predecessors, (165), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:08:51,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:51,294 INFO L93 Difference]: Finished difference Result 4135 states and 4529 transitions. [2024-11-28 04:08:51,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-28 04:08:51,296 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 5.15625) internal successors, (165), 31 states have internal predecessors, (165), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Word has length 203 [2024-11-28 04:08:51,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:51,307 INFO L225 Difference]: With dead ends: 4135 [2024-11-28 04:08:51,308 INFO L226 Difference]: Without dead ends: 2837 [2024-11-28 04:08:51,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 180 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=334, Invalid=2018, Unknown=0, NotChecked=0, Total=2352 [2024-11-28 04:08:51,312 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 64 mSDsluCounter, 1241 mSDsCounter, 0 mSdLazyCounter, 2930 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 2934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:51,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1311 Invalid, 2934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2930 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:08:51,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2837 states. [2024-11-28 04:08:51,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2837 to 2664. [2024-11-28 04:08:51,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2664 states, 2517 states have (on average 1.0464839094159715) internal successors, (2634), 2520 states have internal predecessors, (2634), 141 states have call successors, (141), 2 states have call predecessors, (141), 2 states have return successors, (141), 141 states have call predecessors, (141), 141 states have call successors, (141) [2024-11-28 04:08:51,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 2916 transitions. [2024-11-28 04:08:51,524 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 2916 transitions. Word has length 203 [2024-11-28 04:08:51,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:51,525 INFO L471 AbstractCegarLoop]: Abstraction has 2664 states and 2916 transitions. [2024-11-28 04:08:51,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 5.15625) internal successors, (165), 31 states have internal predecessors, (165), 10 states have call successors, (10), 1 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-28 04:08:51,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 2916 transitions. [2024-11-28 04:08:51,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-28 04:08:51,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:51,529 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:51,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:51,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:51,734 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:51,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:51,734 INFO L85 PathProgramCache]: Analyzing trace with hash -621965316, now seen corresponding path program 6 times [2024-11-28 04:08:51,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:51,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070491265] [2024-11-28 04:08:51,734 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:08:51,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:51,796 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2024-11-28 04:08:51,796 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:08:51,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644025760] [2024-11-28 04:08:51,798 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:08:51,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:51,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:51,801 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:51,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:08:51,925 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-11-28 04:08:51,926 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:51,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:08:51,937 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:52,756 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 6 proven. 497 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2024-11-28 04:08:52,756 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:53,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:53,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070491265] [2024-11-28 04:08:53,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:08:53,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644025760] [2024-11-28 04:08:53,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644025760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:53,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:08:53,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:08:53,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604077899] [2024-11-28 04:08:53,004 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:53,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:08:53,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:53,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:08:53,005 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:08:53,005 INFO L87 Difference]: Start difference. First operand 2664 states and 2916 transitions. Second operand has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:08:53,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:53,783 INFO L93 Difference]: Finished difference Result 3033 states and 3318 transitions. [2024-11-28 04:08:53,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:08:53,784 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) Word has length 203 [2024-11-28 04:08:53,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:53,793 INFO L225 Difference]: With dead ends: 3033 [2024-11-28 04:08:53,793 INFO L226 Difference]: Without dead ends: 3029 [2024-11-28 04:08:53,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:08:53,795 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 27 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:53,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 444 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:08:53,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3029 states. [2024-11-28 04:08:53,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3029 to 2816. [2024-11-28 04:08:53,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2816 states, 2662 states have (on average 1.0458302028549962) internal successors, (2784), 2665 states have internal predecessors, (2784), 148 states have call successors, (148), 2 states have call predecessors, (148), 2 states have return successors, (148), 148 states have call predecessors, (148), 148 states have call successors, (148) [2024-11-28 04:08:53,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2816 states to 2816 states and 3080 transitions. [2024-11-28 04:08:53,958 INFO L78 Accepts]: Start accepts. Automaton has 2816 states and 3080 transitions. Word has length 203 [2024-11-28 04:08:53,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:53,959 INFO L471 AbstractCegarLoop]: Abstraction has 2816 states and 3080 transitions. [2024-11-28 04:08:53,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 14 states have internal predecessors, (133), 7 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 6 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:08:53,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2816 states and 3080 transitions. [2024-11-28 04:08:53,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-28 04:08:53,964 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:53,965 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:53,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-28 04:08:54,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:54,169 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:54,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:54,169 INFO L85 PathProgramCache]: Analyzing trace with hash -2110652232, now seen corresponding path program 2 times [2024-11-28 04:08:54,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:54,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812220090] [2024-11-28 04:08:54,170 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:54,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:54,197 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:54,197 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:54,525 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 0 proven. 644 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:08:54,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:54,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812220090] [2024-11-28 04:08:54,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812220090] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:54,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789079778] [2024-11-28 04:08:54,525 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:54,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:54,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:54,528 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:54,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:08:54,642 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:54,642 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:54,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:08:54,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:54,982 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 0 proven. 644 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:08:54,983 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:55,572 INFO L134 CoverageAnalysis]: Checked inductivity of 792 backedges. 0 proven. 644 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:08:55,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789079778] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:55,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:55,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-28 04:08:55,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561550776] [2024-11-28 04:08:55,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:55,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:08:55,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:55,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:08:55,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:08:55,578 INFO L87 Difference]: Start difference. First operand 2816 states and 3080 transitions. Second operand has 21 states, 20 states have (on average 17.05) internal successors, (341), 21 states have internal predecessors, (341), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-28 04:08:56,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:56,338 INFO L93 Difference]: Finished difference Result 4907 states and 5500 transitions. [2024-11-28 04:08:56,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:08:56,339 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 17.05) internal successors, (341), 21 states have internal predecessors, (341), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 215 [2024-11-28 04:08:56,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:56,354 INFO L225 Difference]: With dead ends: 4907 [2024-11-28 04:08:56,355 INFO L226 Difference]: Without dead ends: 4906 [2024-11-28 04:08:56,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:08:56,358 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 32 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:56,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 267 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:08:56,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4906 states. [2024-11-28 04:08:56,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4906 to 4906. [2024-11-28 04:08:56,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4906 states, 4642 states have (on average 1.049978457561396) internal successors, (4874), 4645 states have internal predecessors, (4874), 258 states have call successors, (258), 2 states have call predecessors, (258), 2 states have return successors, (258), 258 states have call predecessors, (258), 258 states have call successors, (258) [2024-11-28 04:08:56,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4906 states to 4906 states and 5390 transitions. [2024-11-28 04:08:56,807 INFO L78 Accepts]: Start accepts. Automaton has 4906 states and 5390 transitions. Word has length 215 [2024-11-28 04:08:56,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:08:56,808 INFO L471 AbstractCegarLoop]: Abstraction has 4906 states and 5390 transitions. [2024-11-28 04:08:56,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 17.05) internal successors, (341), 21 states have internal predecessors, (341), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-28 04:08:56,808 INFO L276 IsEmpty]: Start isEmpty. Operand 4906 states and 5390 transitions. [2024-11-28 04:08:56,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 04:08:56,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:08:56,811 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, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:08:56,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-28 04:08:57,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:57,012 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:08:57,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:08:57,012 INFO L85 PathProgramCache]: Analyzing trace with hash -614426988, now seen corresponding path program 2 times [2024-11-28 04:08:57,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:08:57,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830844890] [2024-11-28 04:08:57,013 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:57,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:08:57,041 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:57,041 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:08:57,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:57,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830844890] [2024-11-28 04:08:57,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830844890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:57,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870913666] [2024-11-28 04:08:57,342 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:08:57,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:57,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:57,344 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:57,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:08:57,458 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:08:57,458 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:08:57,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:08:57,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:57,774 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:08:57,775 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:58,297 INFO L134 CoverageAnalysis]: Checked inductivity of 816 backedges. 0 proven. 668 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:08:58,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870913666] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:58,298 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:58,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-11-28 04:08:58,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923755840] [2024-11-28 04:08:58,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:58,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:08:58,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:58,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:08:58,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:08:58,301 INFO L87 Difference]: Start difference. First operand 4906 states and 5390 transitions. Second operand has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-28 04:08:59,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:08:59,224 INFO L93 Difference]: Finished difference Result 9697 states and 10692 transitions. [2024-11-28 04:08:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:08:59,225 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 218 [2024-11-28 04:08:59,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:08:59,254 INFO L225 Difference]: With dead ends: 9697 [2024-11-28 04:08:59,254 INFO L226 Difference]: Without dead ends: 9696 [2024-11-28 04:08:59,258 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:08:59,259 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 346 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:08:59,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 407 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:08:59,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9696 states. [2024-11-28 04:09:00,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9696 to 9646. [2024-11-28 04:09:00,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9646 states, 9132 states have (on average 1.0516863775733685) internal successors, (9604), 9135 states have internal predecessors, (9604), 508 states have call successors, (508), 2 states have call predecessors, (508), 2 states have return successors, (508), 508 states have call predecessors, (508), 508 states have call successors, (508) [2024-11-28 04:09:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9646 states to 9646 states and 10620 transitions. [2024-11-28 04:09:00,129 INFO L78 Accepts]: Start accepts. Automaton has 9646 states and 10620 transitions. Word has length 218 [2024-11-28 04:09:00,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:00,130 INFO L471 AbstractCegarLoop]: Abstraction has 9646 states and 10620 transitions. [2024-11-28 04:09:00,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 17.35) internal successors, (347), 21 states have internal predecessors, (347), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-11-28 04:09:00,130 INFO L276 IsEmpty]: Start isEmpty. Operand 9646 states and 10620 transitions. [2024-11-28 04:09:00,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-28 04:09:00,133 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:00,133 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:00,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:09:00,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:00,334 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:09:00,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:00,334 INFO L85 PathProgramCache]: Analyzing trace with hash 589006835, now seen corresponding path program 7 times [2024-11-28 04:09:00,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:00,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675388208] [2024-11-28 04:09:00,335 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:09:00,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 183 proven. 499 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:09:00,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:00,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675388208] [2024-11-28 04:09:00,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675388208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:00,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39344953] [2024-11-28 04:09:00,741 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:09:00,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:00,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:00,744 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:00,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:09:00,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:00,852 INFO L256 TraceCheckSpWp]: Trace formula consists of 372 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:09:00,856 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:01,432 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:09:01,432 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:01,924 INFO L134 CoverageAnalysis]: Checked inductivity of 830 backedges. 232 proven. 450 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-28 04:09:01,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39344953] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:09:01,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:09:01,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-11-28 04:09:01,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629857884] [2024-11-28 04:09:01,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:01,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:09:01,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:01,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:09:01,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:09:01,928 INFO L87 Difference]: Start difference. First operand 9646 states and 10620 transitions. Second operand has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-28 04:09:03,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:03,509 INFO L93 Difference]: Finished difference Result 21914 states and 24139 transitions. [2024-11-28 04:09:03,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:09:03,509 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 226 [2024-11-28 04:09:03,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:03,555 INFO L225 Difference]: With dead ends: 21914 [2024-11-28 04:09:03,555 INFO L226 Difference]: Without dead ends: 15782 [2024-11-28 04:09:03,566 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 437 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:09:03,567 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 45 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:03,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 758 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:09:03,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15782 states. [2024-11-28 04:09:04,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15782 to 10950. [2024-11-28 04:09:04,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10950 states, 10368 states have (on average 1.0486111111111112) internal successors, (10872), 10371 states have internal predecessors, (10872), 576 states have call successors, (576), 2 states have call predecessors, (576), 2 states have return successors, (576), 576 states have call predecessors, (576), 576 states have call successors, (576) [2024-11-28 04:09:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10950 states to 10950 states and 12024 transitions. [2024-11-28 04:09:04,732 INFO L78 Accepts]: Start accepts. Automaton has 10950 states and 12024 transitions. Word has length 226 [2024-11-28 04:09:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:04,733 INFO L471 AbstractCegarLoop]: Abstraction has 10950 states and 12024 transitions. [2024-11-28 04:09:04,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 15.777777777777779) internal successors, (284), 18 states have internal predecessors, (284), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-28 04:09:04,733 INFO L276 IsEmpty]: Start isEmpty. Operand 10950 states and 12024 transitions. [2024-11-28 04:09:04,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-28 04:09:04,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:04,738 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:04,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-28 04:09:04,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 04:09:04,939 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:09:04,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:04,939 INFO L85 PathProgramCache]: Analyzing trace with hash -482832067, now seen corresponding path program 8 times [2024-11-28 04:09:04,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:04,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532676182] [2024-11-28 04:09:04,940 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:09:04,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:04,983 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:09:04,983 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:09:04,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1189059319] [2024-11-28 04:09:04,985 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:09:04,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:04,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:04,988 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:04,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:09:05,098 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:09:05,098 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:09:05,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:09:05,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:05,903 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2024-11-28 04:09:05,903 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:06,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:06,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532676182] [2024-11-28 04:09:06,074 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:06,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189059319] [2024-11-28 04:09:06,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189059319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:06,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:06,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:09:06,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069400407] [2024-11-28 04:09:06,075 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:06,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:09:06,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:06,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:09:06,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:09:06,076 INFO L87 Difference]: Start difference. First operand 10950 states and 12024 transitions. Second operand has 9 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 04:09:06,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:06,890 INFO L93 Difference]: Finished difference Result 11823 states and 12974 transitions. [2024-11-28 04:09:06,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:09:06,892 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 226 [2024-11-28 04:09:06,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:06,919 INFO L225 Difference]: With dead ends: 11823 [2024-11-28 04:09:06,920 INFO L226 Difference]: Without dead ends: 11819 [2024-11-28 04:09:06,924 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:09:06,925 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 23 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:06,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 303 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:09:06,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11819 states. [2024-11-28 04:09:07,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11819 to 11396. [2024-11-28 04:09:07,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11396 states, 10791 states have (on average 1.048002965434158) internal successors, (11309), 10794 states have internal predecessors, (11309), 599 states have call successors, (599), 2 states have call predecessors, (599), 2 states have return successors, (599), 599 states have call predecessors, (599), 599 states have call successors, (599) [2024-11-28 04:09:07,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11396 states to 11396 states and 12507 transitions. [2024-11-28 04:09:07,932 INFO L78 Accepts]: Start accepts. Automaton has 11396 states and 12507 transitions. Word has length 226 [2024-11-28 04:09:07,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:07,935 INFO L471 AbstractCegarLoop]: Abstraction has 11396 states and 12507 transitions. [2024-11-28 04:09:07,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.375) internal successors, (115), 9 states have internal predecessors, (115), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-11-28 04:09:07,936 INFO L276 IsEmpty]: Start isEmpty. Operand 11396 states and 12507 transitions. [2024-11-28 04:09:07,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-28 04:09:07,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:07,939 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:07,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:08,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 04:09:08,144 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:09:08,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:08,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1363621892, now seen corresponding path program 9 times [2024-11-28 04:09:08,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:08,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618529046] [2024-11-28 04:09:08,145 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:09:08,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:08,208 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 04:09:08,211 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:09:08,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703032023] [2024-11-28 04:09:08,213 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:09:08,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:08,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:08,223 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:08,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:09:08,328 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:09:08,328 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:09:08,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:09:08,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:08,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 677 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2024-11-28 04:09:08,938 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:09,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:09,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618529046] [2024-11-28 04:09:09,195 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:09,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703032023] [2024-11-28 04:09:09,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703032023] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:09,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:09,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:09:09,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388789910] [2024-11-28 04:09:09,196 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:09,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:09:09,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:09,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:09:09,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:09:09,200 INFO L87 Difference]: Start difference. First operand 11396 states and 12507 transitions. Second operand has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:09:10,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:10,739 INFO L93 Difference]: Finished difference Result 18616 states and 20437 transitions. [2024-11-28 04:09:10,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:09:10,739 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 249 [2024-11-28 04:09:10,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:10,769 INFO L225 Difference]: With dead ends: 18616 [2024-11-28 04:09:10,769 INFO L226 Difference]: Without dead ends: 12217 [2024-11-28 04:09:10,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:09:10,783 INFO L435 NwaCegarLoop]: 111 mSDtfsCounter, 149 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:10,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 678 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:09:10,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12217 states. [2024-11-28 04:09:12,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12217 to 11501. [2024-11-28 04:09:12,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11501 states, 10891 states have (on average 1.0475622073271509) internal successors, (11409), 10894 states have internal predecessors, (11409), 604 states have call successors, (604), 2 states have call predecessors, (604), 2 states have return successors, (604), 604 states have call predecessors, (604), 604 states have call successors, (604) [2024-11-28 04:09:12,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11501 states to 11501 states and 12617 transitions. [2024-11-28 04:09:12,061 INFO L78 Accepts]: Start accepts. Automaton has 11501 states and 12617 transitions. Word has length 249 [2024-11-28 04:09:12,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:12,062 INFO L471 AbstractCegarLoop]: Abstraction has 11501 states and 12617 transitions. [2024-11-28 04:09:12,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 10 states have internal predecessors, (128), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:09:12,062 INFO L276 IsEmpty]: Start isEmpty. Operand 11501 states and 12617 transitions. [2024-11-28 04:09:12,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-28 04:09:12,065 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:12,065 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:12,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 04:09:12,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 04:09:12,266 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:09:12,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:12,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1364105362, now seen corresponding path program 10 times [2024-11-28 04:09:12,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:12,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48018411] [2024-11-28 04:09:12,268 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:09:12,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:12,320 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:09:12,321 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:09:12,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414940321] [2024-11-28 04:09:12,324 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:09:12,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:12,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:12,327 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:12,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:09:12,468 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:09:12,468 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:09:12,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-28 04:09:12,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:17,669 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 33 proven. 848 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-28 04:09:17,671 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:18,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:18,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48018411] [2024-11-28 04:09:18,214 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:18,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414940321] [2024-11-28 04:09:18,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414940321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:18,215 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:18,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2024-11-28 04:09:18,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45563249] [2024-11-28 04:09:18,215 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:18,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-28 04:09:18,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:18,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-28 04:09:18,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1692, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 04:09:18,218 INFO L87 Difference]: Start difference. First operand 11501 states and 12617 transitions. Second operand has 39 states, 37 states have (on average 5.4324324324324325) internal successors, (201), 35 states have internal predecessors, (201), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:09:22,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:09:31,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:31,738 INFO L93 Difference]: Finished difference Result 12308 states and 13497 transitions. [2024-11-28 04:09:31,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2024-11-28 04:09:31,739 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 37 states have (on average 5.4324324324324325) internal successors, (201), 35 states have internal predecessors, (201), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) Word has length 249 [2024-11-28 04:09:31,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:31,762 INFO L225 Difference]: With dead ends: 12308 [2024-11-28 04:09:31,762 INFO L226 Difference]: Without dead ends: 12304 [2024-11-28 04:09:31,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2189 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=978, Invalid=7032, Unknown=0, NotChecked=0, Total=8010 [2024-11-28 04:09:31,769 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 304 mSDsluCounter, 971 mSDsCounter, 0 mSdLazyCounter, 2996 mSolverCounterSat, 33 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 3031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2996 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:31,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 1021 Invalid, 3031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2996 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2024-11-28 04:09:31,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12304 states. [2024-11-28 04:09:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12304 to 11501. [2024-11-28 04:09:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11501 states, 10891 states have (on average 1.047378569461023) internal successors, (11407), 10894 states have internal predecessors, (11407), 604 states have call successors, (604), 2 states have call predecessors, (604), 2 states have return successors, (604), 604 states have call predecessors, (604), 604 states have call successors, (604) [2024-11-28 04:09:32,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11501 states to 11501 states and 12615 transitions. [2024-11-28 04:09:32,379 INFO L78 Accepts]: Start accepts. Automaton has 11501 states and 12615 transitions. Word has length 249 [2024-11-28 04:09:32,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:32,379 INFO L471 AbstractCegarLoop]: Abstraction has 11501 states and 12615 transitions. [2024-11-28 04:09:32,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 37 states have (on average 5.4324324324324325) internal successors, (201), 35 states have internal predecessors, (201), 12 states have call successors, (12), 1 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:09:32,379 INFO L276 IsEmpty]: Start isEmpty. Operand 11501 states and 12615 transitions. [2024-11-28 04:09:32,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-28 04:09:32,384 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:32,384 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:32,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 04:09:32,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 04:09:32,589 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:09:32,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:32,589 INFO L85 PathProgramCache]: Analyzing trace with hash 2006574213, now seen corresponding path program 11 times [2024-11-28 04:09:32,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:32,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982686841] [2024-11-28 04:09:32,589 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:09:32,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:32,622 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-28 04:09:32,623 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:09:32,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 595 proven. 273 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-28 04:09:32,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:32,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982686841] [2024-11-28 04:09:32,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982686841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:32,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660459673] [2024-11-28 04:09:32,919 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:09:32,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:32,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:32,922 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:32,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:09:33,051 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-28 04:09:33,052 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:09:33,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:09:33,058 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 716 proven. 192 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2024-11-28 04:09:33,433 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:33,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1215 backedges. 508 proven. 360 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-28 04:09:33,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660459673] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:09:33,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:09:33,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2024-11-28 04:09:33,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852003956] [2024-11-28 04:09:33,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:33,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:09:33,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:33,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:09:33,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:09:33,750 INFO L87 Difference]: Start difference. First operand 11501 states and 12615 transitions. Second operand has 9 states, 9 states have (on average 20.444444444444443) internal successors, (184), 9 states have internal predecessors, (184), 9 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-28 04:09:34,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:34,615 INFO L93 Difference]: Finished difference Result 18885 states and 20725 transitions. [2024-11-28 04:09:34,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:09:34,616 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 20.444444444444443) internal successors, (184), 9 states have internal predecessors, (184), 9 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) Word has length 272 [2024-11-28 04:09:34,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:34,636 INFO L225 Difference]: With dead ends: 18885 [2024-11-28 04:09:34,636 INFO L226 Difference]: Without dead ends: 11152 [2024-11-28 04:09:34,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:09:34,650 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 9 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:34,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 303 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:09:34,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11152 states. [2024-11-28 04:09:35,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11152 to 11149. [2024-11-28 04:09:35,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11149 states, 10556 states have (on average 1.0457559681697612) internal successors, (11039), 10559 states have internal predecessors, (11039), 587 states have call successors, (587), 2 states have call predecessors, (587), 2 states have return successors, (587), 587 states have call predecessors, (587), 587 states have call successors, (587) [2024-11-28 04:09:35,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11149 states to 11149 states and 12213 transitions. [2024-11-28 04:09:35,573 INFO L78 Accepts]: Start accepts. Automaton has 11149 states and 12213 transitions. Word has length 272 [2024-11-28 04:09:35,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:35,574 INFO L471 AbstractCegarLoop]: Abstraction has 11149 states and 12213 transitions. [2024-11-28 04:09:35,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 20.444444444444443) internal successors, (184), 9 states have internal predecessors, (184), 9 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-28 04:09:35,574 INFO L276 IsEmpty]: Start isEmpty. Operand 11149 states and 12213 transitions. [2024-11-28 04:09:35,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-28 04:09:35,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:35,579 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:35,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:35,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:35,780 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:09:35,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:35,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1149251376, now seen corresponding path program 12 times [2024-11-28 04:09:35,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:35,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709521590] [2024-11-28 04:09:35,781 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:09:35,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:35,843 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2024-11-28 04:09:35,843 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:09:35,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [64520849] [2024-11-28 04:09:35,846 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:09:35,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:35,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:35,848 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:35,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:09:36,110 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2024-11-28 04:09:36,111 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:09:36,113 INFO L256 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:09:36,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:37,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1514 backedges. 0 proven. 981 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2024-11-28 04:09:37,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:37,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:37,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709521590] [2024-11-28 04:09:37,268 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:37,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64520849] [2024-11-28 04:09:37,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64520849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:37,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:37,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:09:37,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812149882] [2024-11-28 04:09:37,268 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:37,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:09:37,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:37,269 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:09:37,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:09:37,270 INFO L87 Difference]: Start difference. First operand 11149 states and 12213 transitions. Second operand has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:09:38,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:38,471 INFO L93 Difference]: Finished difference Result 11887 states and 13017 transitions. [2024-11-28 04:09:38,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:09:38,471 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 295 [2024-11-28 04:09:38,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:38,492 INFO L225 Difference]: With dead ends: 11887 [2024-11-28 04:09:38,492 INFO L226 Difference]: Without dead ends: 11883 [2024-11-28 04:09:38,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:09:38,498 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 21 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:38,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 633 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:09:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11883 states. [2024-11-28 04:09:39,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11883 to 11509. [2024-11-28 04:09:39,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11509 states, 10897 states have (on average 1.045700651555474) internal successors, (11395), 10900 states have internal predecessors, (11395), 606 states have call successors, (606), 2 states have call predecessors, (606), 2 states have return successors, (606), 606 states have call predecessors, (606), 606 states have call successors, (606) [2024-11-28 04:09:39,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11509 states to 11509 states and 12607 transitions. [2024-11-28 04:09:39,399 INFO L78 Accepts]: Start accepts. Automaton has 11509 states and 12607 transitions. Word has length 295 [2024-11-28 04:09:39,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:39,399 INFO L471 AbstractCegarLoop]: Abstraction has 11509 states and 12607 transitions. [2024-11-28 04:09:39,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.6) internal successors, (146), 11 states have internal predecessors, (146), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-28 04:09:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand 11509 states and 12607 transitions. [2024-11-28 04:09:39,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-28 04:09:39,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:39,404 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:39,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-28 04:09:39,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:39,609 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:09:39,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:39,609 INFO L85 PathProgramCache]: Analyzing trace with hash 503482182, now seen corresponding path program 13 times [2024-11-28 04:09:39,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:39,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346878854] [2024-11-28 04:09:39,609 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:09:39,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:09:39,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [117307640] [2024-11-28 04:09:39,720 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:09:39,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:39,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:39,726 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:39,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:09:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:09:40,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-28 04:09:40,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:44,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1486 backedges. 33 proven. 1221 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-28 04:09:44,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:44,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:44,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346878854] [2024-11-28 04:09:44,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:44,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117307640] [2024-11-28 04:09:44,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117307640] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:44,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:44,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2024-11-28 04:09:44,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302074637] [2024-11-28 04:09:44,694 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:44,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-28 04:09:44,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:44,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-28 04:09:44,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=1813, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:09:44,697 INFO L87 Difference]: Start difference. First operand 11509 states and 12607 transitions. Second operand has 42 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 04:09:49,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:49,014 INFO L93 Difference]: Finished difference Result 12154 states and 13314 transitions. [2024-11-28 04:09:49,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-28 04:09:49,015 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) Word has length 295 [2024-11-28 04:09:49,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:49,027 INFO L225 Difference]: With dead ends: 12154 [2024-11-28 04:09:49,027 INFO L226 Difference]: Without dead ends: 12150 [2024-11-28 04:09:49,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1970 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=1134, Invalid=5028, Unknown=0, NotChecked=0, Total=6162 [2024-11-28 04:09:49,033 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 224 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 836 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:49,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 836 Invalid, 1838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:09:49,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12150 states. [2024-11-28 04:09:50,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12150 to 11499. [2024-11-28 04:09:50,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11499 states, 10887 states have (on average 1.0455589234867273) internal successors, (11383), 10890 states have internal predecessors, (11383), 606 states have call successors, (606), 2 states have call predecessors, (606), 2 states have return successors, (606), 606 states have call predecessors, (606), 606 states have call successors, (606) [2024-11-28 04:09:50,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11499 states to 11499 states and 12595 transitions. [2024-11-28 04:09:50,068 INFO L78 Accepts]: Start accepts. Automaton has 11499 states and 12595 transitions. Word has length 295 [2024-11-28 04:09:50,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:50,069 INFO L471 AbstractCegarLoop]: Abstraction has 11499 states and 12595 transitions. [2024-11-28 04:09:50,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 40 states have (on average 5.925) internal successors, (237), 40 states have internal predecessors, (237), 14 states have call successors, (14), 1 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-28 04:09:50,069 INFO L276 IsEmpty]: Start isEmpty. Operand 11499 states and 12595 transitions. [2024-11-28 04:09:50,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-28 04:09:50,073 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:50,073 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:50,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-28 04:09:50,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2024-11-28 04:09:50,274 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:09:50,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:50,275 INFO L85 PathProgramCache]: Analyzing trace with hash 260574180, now seen corresponding path program 14 times [2024-11-28 04:09:50,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:50,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051289198] [2024-11-28 04:09:50,275 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:09:50,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:50,318 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:09:50,318 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:09:50,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1156667865] [2024-11-28 04:09:50,320 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:09:50,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:50,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:50,327 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:50,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:09:50,492 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:09:50,492 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:09:50,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:09:50,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:09:51,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1466 backedges. 0 proven. 1051 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2024-11-28 04:09:51,830 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:09:56,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:09:56,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051289198] [2024-11-28 04:09:56,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:09:56,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156667865] [2024-11-28 04:09:56,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156667865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:09:56,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:09:56,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:09:56,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521622013] [2024-11-28 04:09:56,813 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:09:56,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:09:56,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:09:56,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:09:56,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=176, Unknown=1, NotChecked=0, Total=240 [2024-11-28 04:09:56,815 INFO L87 Difference]: Start difference. First operand 11499 states and 12595 transitions. Second operand has 10 states, 9 states have (on average 15.333333333333334) internal successors, (138), 10 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:09:58,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:09:58,028 INFO L93 Difference]: Finished difference Result 12373 states and 13545 transitions. [2024-11-28 04:09:58,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:09:58,029 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 15.333333333333334) internal successors, (138), 10 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 295 [2024-11-28 04:09:58,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:09:58,046 INFO L225 Difference]: With dead ends: 12373 [2024-11-28 04:09:58,047 INFO L226 Difference]: Without dead ends: 12369 [2024-11-28 04:09:58,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=63, Invalid=176, Unknown=1, NotChecked=0, Total=240 [2024-11-28 04:09:58,050 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 23 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:09:58,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 615 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:09:58,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12369 states. [2024-11-28 04:09:59,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12369 to 11945. [2024-11-28 04:09:59,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11945 states, 11310 states have (on average 1.0450928381962865) internal successors, (11820), 11313 states have internal predecessors, (11820), 629 states have call successors, (629), 2 states have call predecessors, (629), 2 states have return successors, (629), 629 states have call predecessors, (629), 629 states have call successors, (629) [2024-11-28 04:09:59,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11945 states to 11945 states and 13078 transitions. [2024-11-28 04:09:59,201 INFO L78 Accepts]: Start accepts. Automaton has 11945 states and 13078 transitions. Word has length 295 [2024-11-28 04:09:59,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:09:59,203 INFO L471 AbstractCegarLoop]: Abstraction has 11945 states and 13078 transitions. [2024-11-28 04:09:59,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 15.333333333333334) internal successors, (138), 10 states have internal predecessors, (138), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 04:09:59,204 INFO L276 IsEmpty]: Start isEmpty. Operand 11945 states and 13078 transitions. [2024-11-28 04:09:59,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-28 04:09:59,208 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:09:59,209 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:09:59,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-28 04:09:59,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-28 04:09:59,409 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:09:59,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:09:59,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1823738536, now seen corresponding path program 15 times [2024-11-28 04:09:59,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:09:59,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544781501] [2024-11-28 04:09:59,410 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:09:59,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:09:59,467 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-28 04:09:59,467 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:09:59,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1815028754] [2024-11-28 04:09:59,470 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:09:59,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:09:59,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:09:59,472 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:09:59,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:09:59,655 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-28 04:09:59,655 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:09:59,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:09:59,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:00,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1450 backedges. 15 proven. 1107 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-28 04:10:00,544 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:00,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:00,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544781501] [2024-11-28 04:10:00,812 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:00,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815028754] [2024-11-28 04:10:00,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815028754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:00,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:00,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:10:00,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636561098] [2024-11-28 04:10:00,812 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:00,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:10:00,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:00,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:10:00,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:10:00,814 INFO L87 Difference]: Start difference. First operand 11945 states and 13078 transitions. Second operand has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:10:02,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:02,374 INFO L93 Difference]: Finished difference Result 11956 states and 13084 transitions. [2024-11-28 04:10:02,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-28 04:10:02,374 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 295 [2024-11-28 04:10:02,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:02,391 INFO L225 Difference]: With dead ends: 11956 [2024-11-28 04:10:02,391 INFO L226 Difference]: Without dead ends: 11952 [2024-11-28 04:10:02,393 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=352, Invalid=1370, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 04:10:02,394 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 246 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:02,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 446 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:10:02,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11952 states. [2024-11-28 04:10:03,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11952 to 11945. [2024-11-28 04:10:03,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11945 states, 11310 states have (on average 1.0449160035366931) internal successors, (11818), 11313 states have internal predecessors, (11818), 629 states have call successors, (629), 2 states have call predecessors, (629), 2 states have return successors, (629), 629 states have call predecessors, (629), 629 states have call successors, (629) [2024-11-28 04:10:03,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11945 states to 11945 states and 13076 transitions. [2024-11-28 04:10:03,409 INFO L78 Accepts]: Start accepts. Automaton has 11945 states and 13076 transitions. Word has length 295 [2024-11-28 04:10:03,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:03,409 INFO L471 AbstractCegarLoop]: Abstraction has 11945 states and 13076 transitions. [2024-11-28 04:10:03,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 14.916666666666666) internal successors, (179), 13 states have internal predecessors, (179), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:10:03,409 INFO L276 IsEmpty]: Start isEmpty. Operand 11945 states and 13076 transitions. [2024-11-28 04:10:03,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-28 04:10:03,415 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:03,415 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 11, 11, 11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:03,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-28 04:10:03,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 04:10:03,616 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:10:03,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:03,617 INFO L85 PathProgramCache]: Analyzing trace with hash 772134963, now seen corresponding path program 16 times [2024-11-28 04:10:03,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:03,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626312841] [2024-11-28 04:10:03,617 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:10:03,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:03,671 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:10:03,671 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:04,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 357 proven. 1115 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:10:04,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:04,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626312841] [2024-11-28 04:10:04,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626312841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:04,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218121467] [2024-11-28 04:10:04,673 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:10:04,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:04,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:04,676 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:04,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:10:04,808 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:10:04,808 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:04,811 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:10:04,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 457 proven. 1015 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:10:05,743 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:06,420 INFO L134 CoverageAnalysis]: Checked inductivity of 1788 backedges. 457 proven. 1015 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-28 04:10:06,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218121467] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:06,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:10:06,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 23 [2024-11-28 04:10:06,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94826957] [2024-11-28 04:10:06,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:06,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:10:06,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:06,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:10:06,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:10:06,424 INFO L87 Difference]: Start difference. First operand 11945 states and 13076 transitions. Second operand has 23 states, 23 states have (on average 16.217391304347824) internal successors, (373), 23 states have internal predecessors, (373), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-28 04:10:08,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:08,230 INFO L93 Difference]: Finished difference Result 25313 states and 27763 transitions. [2024-11-28 04:10:08,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:10:08,231 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 16.217391304347824) internal successors, (373), 23 states have internal predecessors, (373), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) Word has length 318 [2024-11-28 04:10:08,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:08,255 INFO L225 Difference]: With dead ends: 25313 [2024-11-28 04:10:08,255 INFO L226 Difference]: Without dead ends: 18801 [2024-11-28 04:10:08,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 615 SyntacticMatches, 14 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:10:08,265 INFO L435 NwaCegarLoop]: 164 mSDtfsCounter, 53 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 1186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:08,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 992 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1186 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:10:08,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18801 states. [2024-11-28 04:10:09,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18801 to 14123. [2024-11-28 04:10:09,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14123 states, 13374 states have (on average 1.0403020786600867) internal successors, (13913), 13377 states have internal predecessors, (13913), 743 states have call successors, (743), 2 states have call predecessors, (743), 2 states have return successors, (743), 743 states have call predecessors, (743), 743 states have call successors, (743) [2024-11-28 04:10:09,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14123 states to 14123 states and 15399 transitions. [2024-11-28 04:10:09,046 INFO L78 Accepts]: Start accepts. Automaton has 14123 states and 15399 transitions. Word has length 318 [2024-11-28 04:10:09,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:09,047 INFO L471 AbstractCegarLoop]: Abstraction has 14123 states and 15399 transitions. [2024-11-28 04:10:09,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 16.217391304347824) internal successors, (373), 23 states have internal predecessors, (373), 21 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-28 04:10:09,047 INFO L276 IsEmpty]: Start isEmpty. Operand 14123 states and 15399 transitions. [2024-11-28 04:10:09,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-28 04:10:09,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:09,050 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:09,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-28 04:10:09,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-28 04:10:09,251 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:10:09,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:09,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1250776239, now seen corresponding path program 17 times [2024-11-28 04:10:09,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:09,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466161880] [2024-11-28 04:10:09,251 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:10:09,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:09,292 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-11-28 04:10:09,292 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:09,909 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 869 proven. 463 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:10:09,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:09,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466161880] [2024-11-28 04:10:09,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466161880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:09,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735624715] [2024-11-28 04:10:09,910 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:10:09,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:09,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:09,912 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:09,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 04:10:10,047 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2024-11-28 04:10:10,047 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:10,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:10:10,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:10,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 972 proven. 408 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2024-11-28 04:10:10,609 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 1756 backedges. 850 proven. 482 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:10:11,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [735624715] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:11,026 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:10:11,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 15 [2024-11-28 04:10:11,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286013023] [2024-11-28 04:10:11,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:11,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:10:11,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:11,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:10:11,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:10:11,030 INFO L87 Difference]: Start difference. First operand 14123 states and 15399 transitions. Second operand has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 14 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2024-11-28 04:10:12,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:12,735 INFO L93 Difference]: Finished difference Result 23109 states and 25219 transitions. [2024-11-28 04:10:12,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:10:12,736 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 14 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) Word has length 318 [2024-11-28 04:10:12,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:12,759 INFO L225 Difference]: With dead ends: 23109 [2024-11-28 04:10:12,759 INFO L226 Difference]: Without dead ends: 14449 [2024-11-28 04:10:12,772 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 632 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:10:12,772 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 13 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:12,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 804 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:10:12,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14449 states. [2024-11-28 04:10:13,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14449 to 14446. [2024-11-28 04:10:13,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14446 states, 13680 states have (on average 1.0392543859649124) internal successors, (14217), 13683 states have internal predecessors, (14217), 760 states have call successors, (760), 2 states have call predecessors, (760), 2 states have return successors, (760), 760 states have call predecessors, (760), 760 states have call successors, (760) [2024-11-28 04:10:13,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14446 states to 14446 states and 15737 transitions. [2024-11-28 04:10:13,822 INFO L78 Accepts]: Start accepts. Automaton has 14446 states and 15737 transitions. Word has length 318 [2024-11-28 04:10:13,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:13,823 INFO L471 AbstractCegarLoop]: Abstraction has 14446 states and 15737 transitions. [2024-11-28 04:10:13,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 14 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 14 states have call predecessors, (17), 14 states have call successors, (17) [2024-11-28 04:10:13,823 INFO L276 IsEmpty]: Start isEmpty. Operand 14446 states and 15737 transitions. [2024-11-28 04:10:13,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-28 04:10:13,829 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:13,829 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:13,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-28 04:10:14,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-28 04:10:14,029 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:10:14,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:14,030 INFO L85 PathProgramCache]: Analyzing trace with hash 472293316, now seen corresponding path program 18 times [2024-11-28 04:10:14,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:14,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914350487] [2024-11-28 04:10:14,030 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:10:14,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:14,141 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-11-28 04:10:14,142 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:10:14,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [938081283] [2024-11-28 04:10:14,144 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:10:14,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:14,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:14,148 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:14,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:10:14,421 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2024-11-28 04:10:14,421 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:14,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:10:14,430 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:16,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2085 backedges. 0 proven. 1342 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2024-11-28 04:10:16,768 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:16,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:16,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914350487] [2024-11-28 04:10:16,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:16,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938081283] [2024-11-28 04:10:16,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938081283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:16,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:16,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-28 04:10:16,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335450740] [2024-11-28 04:10:16,985 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:16,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:10:16,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:16,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:10:16,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:10:16,986 INFO L87 Difference]: Start difference. First operand 14446 states and 15737 transitions. Second operand has 18 states, 17 states have (on average 9.647058823529411) internal successors, (164), 18 states have internal predecessors, (164), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:10:18,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:18,659 INFO L93 Difference]: Finished difference Result 15174 states and 16527 transitions. [2024-11-28 04:10:18,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:10:18,660 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 9.647058823529411) internal successors, (164), 18 states have internal predecessors, (164), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 341 [2024-11-28 04:10:18,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:18,681 INFO L225 Difference]: With dead ends: 15174 [2024-11-28 04:10:18,681 INFO L226 Difference]: Without dead ends: 15170 [2024-11-28 04:10:18,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:10:18,686 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 22 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:18,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 892 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1224 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:10:18,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15170 states. [2024-11-28 04:10:19,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15170 to 14560. [2024-11-28 04:10:19,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14560 states, 13788 states have (on average 1.038946910356832) internal successors, (14325), 13791 states have internal predecessors, (14325), 766 states have call successors, (766), 2 states have call predecessors, (766), 2 states have return successors, (766), 766 states have call predecessors, (766), 766 states have call successors, (766) [2024-11-28 04:10:19,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14560 states to 14560 states and 15857 transitions. [2024-11-28 04:10:19,466 INFO L78 Accepts]: Start accepts. Automaton has 14560 states and 15857 transitions. Word has length 341 [2024-11-28 04:10:19,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:19,466 INFO L471 AbstractCegarLoop]: Abstraction has 14560 states and 15857 transitions. [2024-11-28 04:10:19,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 9.647058823529411) internal successors, (164), 18 states have internal predecessors, (164), 9 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-11-28 04:10:19,467 INFO L276 IsEmpty]: Start isEmpty. Operand 14560 states and 15857 transitions. [2024-11-28 04:10:19,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-28 04:10:19,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:19,471 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:19,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-28 04:10:19,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-28 04:10:19,671 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:10:19,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:19,672 INFO L85 PathProgramCache]: Analyzing trace with hash -589216194, now seen corresponding path program 19 times [2024-11-28 04:10:19,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:19,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53697870] [2024-11-28 04:10:19,672 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:10:19,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:10:19,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755267549] [2024-11-28 04:10:19,719 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:10:19,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:19,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:19,724 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:19,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 04:10:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:10:19,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-28 04:10:19,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:25,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1985 backedges. 69 proven. 1623 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2024-11-28 04:10:25,277 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:25,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:25,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53697870] [2024-11-28 04:10:25,777 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:25,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755267549] [2024-11-28 04:10:25,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755267549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:25,777 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:25,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2024-11-28 04:10:25,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485858903] [2024-11-28 04:10:25,777 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:25,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-28 04:10:25,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:25,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-28 04:10:25,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=409, Invalid=2041, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 04:10:25,780 INFO L87 Difference]: Start difference. First operand 14560 states and 15857 transitions. Second operand has 45 states, 43 states have (on average 6.348837209302325) internal successors, (273), 42 states have internal predecessors, (273), 16 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:10:33,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:33,374 INFO L93 Difference]: Finished difference Result 14564 states and 15859 transitions. [2024-11-28 04:10:33,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-11-28 04:10:33,375 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 6.348837209302325) internal successors, (273), 42 states have internal predecessors, (273), 16 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) Word has length 341 [2024-11-28 04:10:33,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:33,390 INFO L225 Difference]: With dead ends: 14564 [2024-11-28 04:10:33,390 INFO L226 Difference]: Without dead ends: 14560 [2024-11-28 04:10:33,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2865 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1545, Invalid=8157, Unknown=0, NotChecked=0, Total=9702 [2024-11-28 04:10:33,395 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 339 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 2876 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 340 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 2876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:33,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [340 Valid, 1172 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 2876 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 04:10:33,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14560 states. [2024-11-28 04:10:34,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14560 to 14560. [2024-11-28 04:10:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14560 states, 13788 states have (on average 1.0388018566869741) internal successors, (14323), 13791 states have internal predecessors, (14323), 766 states have call successors, (766), 2 states have call predecessors, (766), 2 states have return successors, (766), 766 states have call predecessors, (766), 766 states have call successors, (766) [2024-11-28 04:10:34,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14560 states to 14560 states and 15855 transitions. [2024-11-28 04:10:34,097 INFO L78 Accepts]: Start accepts. Automaton has 14560 states and 15855 transitions. Word has length 341 [2024-11-28 04:10:34,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:34,098 INFO L471 AbstractCegarLoop]: Abstraction has 14560 states and 15855 transitions. [2024-11-28 04:10:34,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 43 states have (on average 6.348837209302325) internal successors, (273), 42 states have internal predecessors, (273), 16 states have call successors, (16), 1 states have call predecessors, (16), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:10:34,098 INFO L276 IsEmpty]: Start isEmpty. Operand 14560 states and 15855 transitions. [2024-11-28 04:10:34,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-28 04:10:34,102 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:34,102 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 13, 13, 13, 13, 13, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:34,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-28 04:10:34,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-28 04:10:34,303 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:10:34,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:34,303 INFO L85 PathProgramCache]: Analyzing trace with hash -646630937, now seen corresponding path program 20 times [2024-11-28 04:10:34,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:34,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890289373] [2024-11-28 04:10:34,303 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:10:34,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:34,333 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:10:34,333 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:35,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 498 proven. 1483 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:10:35,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:35,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890289373] [2024-11-28 04:10:35,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890289373] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:35,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625632854] [2024-11-28 04:10:35,122 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:10:35,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:35,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:35,125 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:35,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:10:35,271 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:10:35,272 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:35,279 INFO L256 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:10:35,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:36,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 598 proven. 1383 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:10:36,328 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 598 proven. 1383 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2024-11-28 04:10:36,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625632854] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:10:36,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:10:36,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 27 [2024-11-28 04:10:36,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772240970] [2024-11-28 04:10:36,981 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:36,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-28 04:10:36,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:36,983 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-28 04:10:36,983 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:10:36,984 INFO L87 Difference]: Start difference. First operand 14560 states and 15855 transitions. Second operand has 27 states, 27 states have (on average 16.51851851851852) internal successors, (446), 27 states have internal predecessors, (446), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-28 04:10:39,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:39,061 INFO L93 Difference]: Finished difference Result 27918 states and 30458 transitions. [2024-11-28 04:10:39,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:10:39,062 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 16.51851851851852) internal successors, (446), 27 states have internal predecessors, (446), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) Word has length 364 [2024-11-28 04:10:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:39,089 INFO L225 Difference]: With dead ends: 27918 [2024-11-28 04:10:39,089 INFO L226 Difference]: Without dead ends: 21416 [2024-11-28 04:10:39,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 751 GetRequests, 704 SyntacticMatches, 15 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:10:39,100 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 43 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 1237 SdHoareTripleChecker+Invalid, 1488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:39,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 1237 Invalid, 1488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:10:39,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21416 states. [2024-11-28 04:10:40,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21416 to 17099. [2024-11-28 04:10:40,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17099 states, 16194 states have (on average 1.0350129677658393) internal successors, (16761), 16197 states have internal predecessors, (16761), 899 states have call successors, (899), 2 states have call predecessors, (899), 2 states have return successors, (899), 899 states have call predecessors, (899), 899 states have call successors, (899) [2024-11-28 04:10:40,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17099 states to 17099 states and 18559 transitions. [2024-11-28 04:10:40,245 INFO L78 Accepts]: Start accepts. Automaton has 17099 states and 18559 transitions. Word has length 364 [2024-11-28 04:10:40,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:40,245 INFO L471 AbstractCegarLoop]: Abstraction has 17099 states and 18559 transitions. [2024-11-28 04:10:40,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 16.51851851851852) internal successors, (446), 27 states have internal predecessors, (446), 25 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2024-11-28 04:10:40,246 INFO L276 IsEmpty]: Start isEmpty. Operand 17099 states and 18559 transitions. [2024-11-28 04:10:40,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-28 04:10:40,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:40,251 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:40,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2024-11-28 04:10:40,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-28 04:10:40,452 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:10:40,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:40,452 INFO L85 PathProgramCache]: Analyzing trace with hash 851287261, now seen corresponding path program 21 times [2024-11-28 04:10:40,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:40,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347255579] [2024-11-28 04:10:40,453 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:10:40,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:40,521 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-28 04:10:40,521 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:10:40,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1686373388] [2024-11-28 04:10:40,523 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:10:40,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:40,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:40,526 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:40,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 04:10:40,635 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-11-28 04:10:40,635 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:40,637 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:10:40,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:41,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2365 backedges. 946 proven. 206 refuted. 0 times theorem prover too weak. 1213 trivial. 0 not checked. [2024-11-28 04:10:41,180 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:41,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:41,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347255579] [2024-11-28 04:10:41,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:41,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686373388] [2024-11-28 04:10:41,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686373388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:41,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:41,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:10:41,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528902628] [2024-11-28 04:10:41,505 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:41,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:10:41,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:41,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:10:41,506 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:10:41,506 INFO L87 Difference]: Start difference. First operand 17099 states and 18559 transitions. Second operand has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 04:10:43,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:10:43,027 INFO L93 Difference]: Finished difference Result 29813 states and 32369 transitions. [2024-11-28 04:10:43,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:10:43,028 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 364 [2024-11-28 04:10:43,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:10:43,064 INFO L225 Difference]: With dead ends: 29813 [2024-11-28 04:10:43,065 INFO L226 Difference]: Without dead ends: 17004 [2024-11-28 04:10:43,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 367 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:10:43,087 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 102 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:10:43,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 679 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 711 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:10:43,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17004 states. [2024-11-28 04:10:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17004 to 17004. [2024-11-28 04:10:44,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17004 states, 16104 states have (on average 1.033842523596622) internal successors, (16649), 16107 states have internal predecessors, (16649), 894 states have call successors, (894), 2 states have call predecessors, (894), 2 states have return successors, (894), 894 states have call predecessors, (894), 894 states have call successors, (894) [2024-11-28 04:10:44,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17004 states to 17004 states and 18437 transitions. [2024-11-28 04:10:44,207 INFO L78 Accepts]: Start accepts. Automaton has 17004 states and 18437 transitions. Word has length 364 [2024-11-28 04:10:44,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:10:44,208 INFO L471 AbstractCegarLoop]: Abstraction has 17004 states and 18437 transitions. [2024-11-28 04:10:44,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.1) internal successors, (131), 11 states have internal predecessors, (131), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 04:10:44,208 INFO L276 IsEmpty]: Start isEmpty. Operand 17004 states and 18437 transitions. [2024-11-28 04:10:44,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2024-11-28 04:10:44,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:10:44,213 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:10:44,220 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-28 04:10:44,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable50 [2024-11-28 04:10:44,413 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:10:44,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:10:44,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1023662493, now seen corresponding path program 22 times [2024-11-28 04:10:44,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:10:44,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339451288] [2024-11-28 04:10:44,414 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:10:44,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:10:44,466 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:10:44,467 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:10:44,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1994435567] [2024-11-28 04:10:44,470 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:10:44,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:10:44,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:10:44,472 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:10:44,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 04:10:44,657 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:10:44,657 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:10:44,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-28 04:10:44,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:10:48,422 INFO L134 CoverageAnalysis]: Checked inductivity of 2309 backedges. 63 proven. 1885 refuted. 0 times theorem prover too weak. 361 trivial. 0 not checked. [2024-11-28 04:10:48,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:10:48,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:10:48,754 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339451288] [2024-11-28 04:10:48,755 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:10:48,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994435567] [2024-11-28 04:10:48,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994435567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:10:48,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:10:48,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2024-11-28 04:10:48,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108501922] [2024-11-28 04:10:48,755 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:10:48,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:10:48,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:10:48,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:10:48,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:10:48,757 INFO L87 Difference]: Start difference. First operand 17004 states and 18437 transitions. Second operand has 28 states, 27 states have (on average 8.185185185185185) internal successors, (221), 28 states have internal predecessors, (221), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-28 04:11:07,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:07,704 INFO L93 Difference]: Finished difference Result 19355 states and 20967 transitions. [2024-11-28 04:11:07,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-28 04:11:07,704 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 8.185185185185185) internal successors, (221), 28 states have internal predecessors, (221), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) Word has length 364 [2024-11-28 04:11:07,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:07,729 INFO L225 Difference]: With dead ends: 19355 [2024-11-28 04:11:07,729 INFO L226 Difference]: Without dead ends: 19351 [2024-11-28 04:11:07,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1447 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=780, Invalid=4919, Unknown=1, NotChecked=0, Total=5700 [2024-11-28 04:11:07,738 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 458 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 54 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:07,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 917 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2095 Invalid, 4 Unknown, 0 Unchecked, 6.1s Time] [2024-11-28 04:11:07,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19351 states. [2024-11-28 04:11:08,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19351 to 18694. [2024-11-28 04:11:08,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18694 states, 17707 states have (on average 1.0330377816682668) internal successors, (18292), 17710 states have internal predecessors, (18292), 981 states have call successors, (981), 2 states have call predecessors, (981), 2 states have return successors, (981), 981 states have call predecessors, (981), 981 states have call successors, (981) [2024-11-28 04:11:08,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18694 states to 18694 states and 20254 transitions. [2024-11-28 04:11:08,805 INFO L78 Accepts]: Start accepts. Automaton has 18694 states and 20254 transitions. Word has length 364 [2024-11-28 04:11:08,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:08,806 INFO L471 AbstractCegarLoop]: Abstraction has 18694 states and 20254 transitions. [2024-11-28 04:11:08,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 8.185185185185185) internal successors, (221), 28 states have internal predecessors, (221), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15) [2024-11-28 04:11:08,806 INFO L276 IsEmpty]: Start isEmpty. Operand 18694 states and 20254 transitions. [2024-11-28 04:11:08,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-28 04:11:08,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:08,811 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:08,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:09,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-28 04:11:09,011 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:11:09,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:09,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1080321136, now seen corresponding path program 23 times [2024-11-28 04:11:09,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:09,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427347000] [2024-11-28 04:11:09,012 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:11:09,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:09,065 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-11-28 04:11:09,066 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:09,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1916202197] [2024-11-28 04:11:09,068 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:11:09,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:09,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:09,071 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:09,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 04:11:09,249 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-11-28 04:11:09,249 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:09,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-28 04:11:09,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2748 backedges. 24 proven. 2285 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2024-11-28 04:11:11,487 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:11,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:11,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427347000] [2024-11-28 04:11:11,938 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:11,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916202197] [2024-11-28 04:11:11,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916202197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:11,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:11,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2024-11-28 04:11:11,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899148721] [2024-11-28 04:11:11,939 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:11,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 04:11:11,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:11,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 04:11:11,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1081, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:11:11,941 INFO L87 Difference]: Start difference. First operand 18694 states and 20254 transitions. Second operand has 32 states, 31 states have (on average 9.870967741935484) internal successors, (306), 32 states have internal predecessors, (306), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-28 04:11:17,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:17,171 INFO L93 Difference]: Finished difference Result 19215 states and 20814 transitions. [2024-11-28 04:11:17,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-28 04:11:17,172 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 9.870967741935484) internal successors, (306), 32 states have internal predecessors, (306), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) Word has length 387 [2024-11-28 04:11:17,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:17,202 INFO L225 Difference]: With dead ends: 19215 [2024-11-28 04:11:17,202 INFO L226 Difference]: Without dead ends: 19211 [2024-11-28 04:11:17,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=115, Invalid=1145, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 04:11:17,208 INFO L435 NwaCegarLoop]: 157 mSDtfsCounter, 28 mSDsluCounter, 3163 mSDsCounter, 0 mSdLazyCounter, 6948 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3320 SdHoareTripleChecker+Invalid, 6950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:17,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 3320 Invalid, 6950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6948 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-28 04:11:17,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19211 states. [2024-11-28 04:11:18,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19211 to 18846. [2024-11-28 04:11:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18846 states, 17851 states have (on average 1.0328272925886506) internal successors, (18437), 17854 states have internal predecessors, (18437), 989 states have call successors, (989), 2 states have call predecessors, (989), 2 states have return successors, (989), 989 states have call predecessors, (989), 989 states have call successors, (989) [2024-11-28 04:11:18,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18846 states to 18846 states and 20415 transitions. [2024-11-28 04:11:18,545 INFO L78 Accepts]: Start accepts. Automaton has 18846 states and 20415 transitions. Word has length 387 [2024-11-28 04:11:18,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:18,545 INFO L471 AbstractCegarLoop]: Abstraction has 18846 states and 20415 transitions. [2024-11-28 04:11:18,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 9.870967741935484) internal successors, (306), 32 states have internal predecessors, (306), 17 states have call successors, (18), 1 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-28 04:11:18,546 INFO L276 IsEmpty]: Start isEmpty. Operand 18846 states and 20415 transitions. [2024-11-28 04:11:18,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-28 04:11:18,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:18,551 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:18,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-28 04:11:18,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-28 04:11:18,752 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:11:18,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:18,753 INFO L85 PathProgramCache]: Analyzing trace with hash -836629636, now seen corresponding path program 24 times [2024-11-28 04:11:18,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:18,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311003747] [2024-11-28 04:11:18,753 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:11:18,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:18,810 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2024-11-28 04:11:18,810 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:18,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1304036122] [2024-11-28 04:11:18,812 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:11:18,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:18,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:18,815 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:18,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 04:11:19,147 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2024-11-28 04:11:19,147 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:19,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-28 04:11:19,157 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:20,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2668 backedges. 156 proven. 1941 refuted. 0 times theorem prover too weak. 571 trivial. 0 not checked. [2024-11-28 04:11:20,797 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:21,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:21,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311003747] [2024-11-28 04:11:21,142 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:21,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304036122] [2024-11-28 04:11:21,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304036122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:21,142 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:21,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-11-28 04:11:21,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679851763] [2024-11-28 04:11:21,142 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:21,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:11:21,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:21,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:11:21,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=503, Unknown=0, NotChecked=0, Total=600 [2024-11-28 04:11:21,144 INFO L87 Difference]: Start difference. First operand 18846 states and 20415 transitions. Second operand has 22 states, 21 states have (on average 10.380952380952381) internal successors, (218), 22 states have internal predecessors, (218), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:11:23,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:23,647 INFO L93 Difference]: Finished difference Result 18918 states and 20489 transitions. [2024-11-28 04:11:23,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 04:11:23,647 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 10.380952380952381) internal successors, (218), 22 states have internal predecessors, (218), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) Word has length 387 [2024-11-28 04:11:23,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:23,676 INFO L225 Difference]: With dead ends: 18918 [2024-11-28 04:11:23,676 INFO L226 Difference]: Without dead ends: 18914 [2024-11-28 04:11:23,681 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 378 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=221, Invalid=901, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:11:23,682 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 25 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:23,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1035 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:11:23,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18914 states. [2024-11-28 04:11:24,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18914 to 18684. [2024-11-28 04:11:24,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18684 states, 17697 states have (on average 1.0329999434932475) internal successors, (18281), 17700 states have internal predecessors, (18281), 981 states have call successors, (981), 2 states have call predecessors, (981), 2 states have return successors, (981), 981 states have call predecessors, (981), 981 states have call successors, (981) [2024-11-28 04:11:24,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18684 states to 18684 states and 20243 transitions. [2024-11-28 04:11:24,765 INFO L78 Accepts]: Start accepts. Automaton has 18684 states and 20243 transitions. Word has length 387 [2024-11-28 04:11:24,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:24,766 INFO L471 AbstractCegarLoop]: Abstraction has 18684 states and 20243 transitions. [2024-11-28 04:11:24,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 10.380952380952381) internal successors, (218), 22 states have internal predecessors, (218), 12 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 11 states have call predecessors, (13), 12 states have call successors, (13) [2024-11-28 04:11:24,766 INFO L276 IsEmpty]: Start isEmpty. Operand 18684 states and 20243 transitions. [2024-11-28 04:11:24,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-28 04:11:24,772 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:24,772 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:24,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:24,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:24,973 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:11:24,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:24,973 INFO L85 PathProgramCache]: Analyzing trace with hash 45198164, now seen corresponding path program 25 times [2024-11-28 04:11:24,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:24,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602385455] [2024-11-28 04:11:24,974 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:11:24,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:11:25,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186234988] [2024-11-28 04:11:25,024 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:11:25,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:25,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:25,028 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:25,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-28 04:11:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:11:25,221 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-28 04:11:25,227 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:29,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2604 backedges. 45 proven. 2123 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2024-11-28 04:11:29,868 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:30,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:30,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602385455] [2024-11-28 04:11:30,331 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:30,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186234988] [2024-11-28 04:11:30,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186234988] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:30,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:30,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2024-11-28 04:11:30,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819859337] [2024-11-28 04:11:30,331 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:30,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-28 04:11:30,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:30,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-28 04:11:30,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=513, Invalid=1937, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 04:11:30,333 INFO L87 Difference]: Start difference. First operand 18684 states and 20243 transitions. Second operand has 45 states, 43 states have (on average 7.186046511627907) internal successors, (309), 43 states have internal predecessors, (309), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:11:36,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:36,309 INFO L93 Difference]: Finished difference Result 18688 states and 20245 transitions. [2024-11-28 04:11:36,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2024-11-28 04:11:36,309 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 7.186046511627907) internal successors, (309), 43 states have internal predecessors, (309), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) Word has length 387 [2024-11-28 04:11:36,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:36,330 INFO L225 Difference]: With dead ends: 18688 [2024-11-28 04:11:36,330 INFO L226 Difference]: Without dead ends: 18684 [2024-11-28 04:11:36,334 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3750 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=2500, Invalid=9272, Unknown=0, NotChecked=0, Total=11772 [2024-11-28 04:11:36,334 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 293 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:36,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 533 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:11:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18684 states. [2024-11-28 04:11:37,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18684 to 18684. [2024-11-28 04:11:37,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18684 states, 17697 states have (on average 1.0328869299881336) internal successors, (18279), 17700 states have internal predecessors, (18279), 981 states have call successors, (981), 2 states have call predecessors, (981), 2 states have return successors, (981), 981 states have call predecessors, (981), 981 states have call successors, (981) [2024-11-28 04:11:37,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18684 states to 18684 states and 20241 transitions. [2024-11-28 04:11:37,390 INFO L78 Accepts]: Start accepts. Automaton has 18684 states and 20241 transitions. Word has length 387 [2024-11-28 04:11:37,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:37,391 INFO L471 AbstractCegarLoop]: Abstraction has 18684 states and 20241 transitions. [2024-11-28 04:11:37,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 43 states have (on average 7.186046511627907) internal successors, (309), 43 states have internal predecessors, (309), 18 states have call successors, (18), 1 states have call predecessors, (18), 3 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 04:11:37,391 INFO L276 IsEmpty]: Start isEmpty. Operand 18684 states and 20241 transitions. [2024-11-28 04:11:37,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-28 04:11:37,396 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:37,396 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:37,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-28 04:11:37,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:37,597 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:11:37,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:37,597 INFO L85 PathProgramCache]: Analyzing trace with hash 502130803, now seen corresponding path program 26 times [2024-11-28 04:11:37,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:37,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800633577] [2024-11-28 04:11:37,598 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:37,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:37,625 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:37,625 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:38,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 641 proven. 1925 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-28 04:11:38,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800633577] [2024-11-28 04:11:38,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800633577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:38,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557615774] [2024-11-28 04:11:38,432 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:11:38,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:38,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:38,435 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:38,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 04:11:38,589 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:11:38,589 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:38,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:11:38,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:39,674 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 758 proven. 1808 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-28 04:11:39,674 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:40,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 758 proven. 1808 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-28 04:11:40,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557615774] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:11:40,445 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:11:40,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 30 [2024-11-28 04:11:40,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400311194] [2024-11-28 04:11:40,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:40,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-28 04:11:40,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:40,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-28 04:11:40,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=657, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:11:40,447 INFO L87 Difference]: Start difference. First operand 18684 states and 20241 transitions. Second operand has 30 states, 30 states have (on average 16.666666666666668) internal successors, (500), 30 states have internal predecessors, (500), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-28 04:11:43,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:43,280 INFO L93 Difference]: Finished difference Result 33350 states and 36230 transitions. [2024-11-28 04:11:43,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:11:43,280 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 16.666666666666668) internal successors, (500), 30 states have internal predecessors, (500), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) Word has length 410 [2024-11-28 04:11:43,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:43,311 INFO L225 Difference]: With dead ends: 33350 [2024-11-28 04:11:43,312 INFO L226 Difference]: Without dead ends: 26478 [2024-11-28 04:11:43,322 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 793 SyntacticMatches, 17 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=337, Invalid=1069, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:11:43,322 INFO L435 NwaCegarLoop]: 200 mSDtfsCounter, 45 mSDsluCounter, 1698 mSDsCounter, 0 mSdLazyCounter, 2333 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 1898 SdHoareTripleChecker+Invalid, 2335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:43,322 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 1898 Invalid, 2335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2333 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:11:43,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26478 states. [2024-11-28 04:11:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26478 to 21898. [2024-11-28 04:11:44,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21898 states, 20743 states have (on average 1.0296003471050474) internal successors, (21357), 20746 states have internal predecessors, (21357), 1149 states have call successors, (1149), 2 states have call predecessors, (1149), 2 states have return successors, (1149), 1149 states have call predecessors, (1149), 1149 states have call successors, (1149) [2024-11-28 04:11:44,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21898 states to 21898 states and 23655 transitions. [2024-11-28 04:11:44,553 INFO L78 Accepts]: Start accepts. Automaton has 21898 states and 23655 transitions. Word has length 410 [2024-11-28 04:11:44,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:44,553 INFO L471 AbstractCegarLoop]: Abstraction has 21898 states and 23655 transitions. [2024-11-28 04:11:44,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 16.666666666666668) internal successors, (500), 30 states have internal predecessors, (500), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-28 04:11:44,553 INFO L276 IsEmpty]: Start isEmpty. Operand 21898 states and 23655 transitions. [2024-11-28 04:11:44,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-28 04:11:44,558 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:44,559 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 15, 15, 15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:44,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-28 04:11:44,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2024-11-28 04:11:44,759 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:11:44,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:44,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1331061703, now seen corresponding path program 27 times [2024-11-28 04:11:44,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:44,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329659666] [2024-11-28 04:11:44,760 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:11:44,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:44,818 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2024-11-28 04:11:44,818 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:45,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 758 proven. 1808 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-28 04:11:45,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:45,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329659666] [2024-11-28 04:11:45,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329659666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:45,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887481917] [2024-11-28 04:11:45,660 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:11:45,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:45,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:45,663 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:45,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2024-11-28 04:11:45,815 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 04:11:45,816 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:45,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:11:45,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:47,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3114 backedges. 0 proven. 2062 refuted. 0 times theorem prover too weak. 1052 trivial. 0 not checked. [2024-11-28 04:11:47,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:47,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887481917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:47,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:11:47,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13] total 32 [2024-11-28 04:11:47,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981937009] [2024-11-28 04:11:47,453 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:47,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 04:11:47,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:47,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 04:11:47,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=1008, Unknown=0, NotChecked=0, Total=1190 [2024-11-28 04:11:47,456 INFO L87 Difference]: Start difference. First operand 21898 states and 23655 transitions. Second operand has 32 states, 32 states have (on average 16.03125) internal successors, (513), 32 states have internal predecessors, (513), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-28 04:11:53,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:11:53,113 INFO L93 Difference]: Finished difference Result 33336 states and 36175 transitions. [2024-11-28 04:11:53,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2024-11-28 04:11:53,113 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 16.03125) internal successors, (513), 32 states have internal predecessors, (513), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) Word has length 410 [2024-11-28 04:11:53,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:11:53,148 INFO L225 Difference]: With dead ends: 33336 [2024-11-28 04:11:53,148 INFO L226 Difference]: Without dead ends: 25543 [2024-11-28 04:11:53,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2089 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=844, Invalid=6296, Unknown=0, NotChecked=0, Total=7140 [2024-11-28 04:11:53,162 INFO L435 NwaCegarLoop]: 267 mSDtfsCounter, 680 mSDsluCounter, 3056 mSDsCounter, 0 mSdLazyCounter, 4983 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 3323 SdHoareTripleChecker+Invalid, 5037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 4983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:11:53,162 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 3323 Invalid, 5037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 4983 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-28 04:11:53,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25543 states. [2024-11-28 04:11:54,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25543 to 20335. [2024-11-28 04:11:54,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20335 states, 19261 states have (on average 1.0279320907533358) internal successors, (19799), 19264 states have internal predecessors, (19799), 1068 states have call successors, (1068), 2 states have call predecessors, (1068), 2 states have return successors, (1068), 1068 states have call predecessors, (1068), 1068 states have call successors, (1068) [2024-11-28 04:11:54,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20335 states to 20335 states and 21935 transitions. [2024-11-28 04:11:54,696 INFO L78 Accepts]: Start accepts. Automaton has 20335 states and 21935 transitions. Word has length 410 [2024-11-28 04:11:54,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:11:54,697 INFO L471 AbstractCegarLoop]: Abstraction has 20335 states and 21935 transitions. [2024-11-28 04:11:54,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 16.03125) internal successors, (513), 32 states have internal predecessors, (513), 28 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 28 states have call predecessors, (29), 28 states have call successors, (29) [2024-11-28 04:11:54,697 INFO L276 IsEmpty]: Start isEmpty. Operand 20335 states and 21935 transitions. [2024-11-28 04:11:54,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-28 04:11:54,703 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:11:54,703 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 15, 15, 15, 15, 15, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:11:54,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2024-11-28 04:11:54,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:54,904 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:11:54,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:11:54,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1529578918, now seen corresponding path program 28 times [2024-11-28 04:11:54,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:11:54,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346156128] [2024-11-28 04:11:54,905 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:11:54,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:11:54,954 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:11:54,955 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:11:54,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365191329] [2024-11-28 04:11:54,958 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:11:54,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:11:54,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:11:54,960 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:11:54,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2024-11-28 04:11:55,121 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:11:55,121 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:11:55,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-28 04:11:55,131 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:11:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3451 backedges. 235 proven. 2718 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2024-11-28 04:11:58,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:11:59,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:11:59,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346156128] [2024-11-28 04:11:59,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:11:59,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365191329] [2024-11-28 04:11:59,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365191329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:11:59,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:11:59,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2024-11-28 04:11:59,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748409130] [2024-11-28 04:11:59,111 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:11:59,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 04:11:59,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:11:59,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 04:11:59,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1299, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:11:59,112 INFO L87 Difference]: Start difference. First operand 20335 states and 21935 transitions. Second operand has 37 states, 36 states have (on average 9.083333333333334) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-28 04:12:03,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:03,336 INFO L93 Difference]: Finished difference Result 21084 states and 22729 transitions. [2024-11-28 04:12:03,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 04:12:03,336 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 9.083333333333334) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) Word has length 433 [2024-11-28 04:12:03,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:03,364 INFO L225 Difference]: With dead ends: 21084 [2024-11-28 04:12:03,364 INFO L226 Difference]: Without dead ends: 21080 [2024-11-28 04:12:03,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=249, Invalid=1913, Unknown=0, NotChecked=0, Total=2162 [2024-11-28 04:12:03,371 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 46 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 3306 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 3311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:03,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 1452 Invalid, 3311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3306 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-28 04:12:03,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21080 states. [2024-11-28 04:12:04,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21080 to 20393. [2024-11-28 04:12:04,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20393 states, 19317 states have (on average 1.0278511155976602) internal successors, (19855), 19320 states have internal predecessors, (19855), 1070 states have call successors, (1070), 2 states have call predecessors, (1070), 2 states have return successors, (1070), 1070 states have call predecessors, (1070), 1070 states have call successors, (1070) [2024-11-28 04:12:04,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20393 states to 20393 states and 21995 transitions. [2024-11-28 04:12:04,698 INFO L78 Accepts]: Start accepts. Automaton has 20393 states and 21995 transitions. Word has length 433 [2024-11-28 04:12:04,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:04,698 INFO L471 AbstractCegarLoop]: Abstraction has 20393 states and 21995 transitions. [2024-11-28 04:12:04,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 9.083333333333334) internal successors, (327), 37 states have internal predecessors, (327), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-28 04:12:04,699 INFO L276 IsEmpty]: Start isEmpty. Operand 20393 states and 21995 transitions. [2024-11-28 04:12:04,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-28 04:12:04,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:04,705 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:04,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2024-11-28 04:12:04,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:04,905 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:12:04,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:04,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1676541828, now seen corresponding path program 29 times [2024-11-28 04:12:04,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:04,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176218517] [2024-11-28 04:12:04,906 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:12:04,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:04,979 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-11-28 04:12:04,980 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:12:04,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1352164960] [2024-11-28 04:12:04,983 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:12:04,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:04,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:04,985 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:04,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2024-11-28 04:12:05,236 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-11-28 04:12:05,237 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:05,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 90 conjuncts are in the unsatisfiable core [2024-11-28 04:12:05,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:09,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3343 backedges. 108 proven. 2787 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-28 04:12:09,812 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:10,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:10,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176218517] [2024-11-28 04:12:10,217 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:10,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352164960] [2024-11-28 04:12:10,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352164960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:10,217 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:12:10,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45] total 45 [2024-11-28 04:12:10,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44436694] [2024-11-28 04:12:10,218 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:10,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-28 04:12:10,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:10,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-28 04:12:10,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=2060, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 04:12:10,220 INFO L87 Difference]: Start difference. First operand 20393 states and 21995 transitions. Second operand has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 17 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-28 04:12:15,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:15,537 INFO L93 Difference]: Finished difference Result 28210 states and 30384 transitions. [2024-11-28 04:12:15,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-28 04:12:15,538 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 17 states have call predecessors, (19), 18 states have call successors, (19) Word has length 433 [2024-11-28 04:12:15,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:15,567 INFO L225 Difference]: With dead ends: 28210 [2024-11-28 04:12:15,567 INFO L226 Difference]: Without dead ends: 20249 [2024-11-28 04:12:15,577 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 466 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1023 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=411, Invalid=4011, Unknown=0, NotChecked=0, Total=4422 [2024-11-28 04:12:15,578 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 68 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 4266 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 4283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 4266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:15,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1788 Invalid, 4283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 4266 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 04:12:15,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20249 states. [2024-11-28 04:12:16,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20249 to 19386. [2024-11-28 04:12:16,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19386 states, 18363 states have (on average 1.0285356423242389) internal successors, (18887), 18366 states have internal predecessors, (18887), 1017 states have call successors, (1017), 2 states have call predecessors, (1017), 2 states have return successors, (1017), 1017 states have call predecessors, (1017), 1017 states have call successors, (1017) [2024-11-28 04:12:16,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19386 states to 19386 states and 20921 transitions. [2024-11-28 04:12:16,822 INFO L78 Accepts]: Start accepts. Automaton has 19386 states and 20921 transitions. Word has length 433 [2024-11-28 04:12:16,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:16,823 INFO L471 AbstractCegarLoop]: Abstraction has 19386 states and 20921 transitions. [2024-11-28 04:12:16,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 7.133333333333334) internal successors, (321), 46 states have internal predecessors, (321), 18 states have call successors, (19), 1 states have call predecessors, (19), 2 states have return successors, (19), 17 states have call predecessors, (19), 18 states have call successors, (19) [2024-11-28 04:12:16,823 INFO L276 IsEmpty]: Start isEmpty. Operand 19386 states and 20921 transitions. [2024-11-28 04:12:16,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-28 04:12:16,828 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:16,828 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:16,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2024-11-28 04:12:17,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2024-11-28 04:12:17,028 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:12:17,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:17,029 INFO L85 PathProgramCache]: Analyzing trace with hash -971466262, now seen corresponding path program 30 times [2024-11-28 04:12:17,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:17,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375404550] [2024-11-28 04:12:17,029 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:12:17,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:17,110 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-11-28 04:12:17,110 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:12:17,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [288049252] [2024-11-28 04:12:17,113 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:12:17,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:17,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:17,116 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:17,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2024-11-28 04:12:17,476 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-11-28 04:12:17,476 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:17,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:12:17,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:18,893 INFO L134 CoverageAnalysis]: Checked inductivity of 3307 backedges. 0 proven. 2571 refuted. 0 times theorem prover too weak. 736 trivial. 0 not checked. [2024-11-28 04:12:18,893 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:19,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:19,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375404550] [2024-11-28 04:12:19,096 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:12:19,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288049252] [2024-11-28 04:12:19,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288049252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:19,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:12:19,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:12:19,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932595692] [2024-11-28 04:12:19,096 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:19,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:12:19,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:19,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:12:19,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:12:19,098 INFO L87 Difference]: Start difference. First operand 19386 states and 20921 transitions. Second operand has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 14 states have internal predecessors, (235), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-28 04:12:20,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:20,573 INFO L93 Difference]: Finished difference Result 19390 states and 20923 transitions. [2024-11-28 04:12:20,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:12:20,574 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 14 states have internal predecessors, (235), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) Word has length 433 [2024-11-28 04:12:20,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:20,601 INFO L225 Difference]: With dead ends: 19390 [2024-11-28 04:12:20,601 INFO L226 Difference]: Without dead ends: 19386 [2024-11-28 04:12:20,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:12:20,606 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 19 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:20,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 388 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:12:20,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19386 states. [2024-11-28 04:12:21,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19386 to 19386. [2024-11-28 04:12:21,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19386 states, 18363 states have (on average 1.0284267276588792) internal successors, (18885), 18366 states have internal predecessors, (18885), 1017 states have call successors, (1017), 2 states have call predecessors, (1017), 2 states have return successors, (1017), 1017 states have call predecessors, (1017), 1017 states have call successors, (1017) [2024-11-28 04:12:21,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19386 states to 19386 states and 20919 transitions. [2024-11-28 04:12:21,770 INFO L78 Accepts]: Start accepts. Automaton has 19386 states and 20919 transitions. Word has length 433 [2024-11-28 04:12:21,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:21,770 INFO L471 AbstractCegarLoop]: Abstraction has 19386 states and 20919 transitions. [2024-11-28 04:12:21,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 18.076923076923077) internal successors, (235), 14 states have internal predecessors, (235), 11 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2024-11-28 04:12:21,770 INFO L276 IsEmpty]: Start isEmpty. Operand 19386 states and 20919 transitions. [2024-11-28 04:12:21,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2024-11-28 04:12:21,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:21,775 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:21,783 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Ended with exit code 0 [2024-11-28 04:12:21,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-28 04:12:21,976 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:12:21,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:21,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1932800984, now seen corresponding path program 3 times [2024-11-28 04:12:21,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:21,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063648472] [2024-11-28 04:12:21,976 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:12:21,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:22,069 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-28 04:12:22,069 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 3847 backedges. 51 proven. 3210 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2024-11-28 04:12:23,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:23,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063648472] [2024-11-28 04:12:23,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063648472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:23,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382912867] [2024-11-28 04:12:23,507 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:12:23,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:23,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:23,509 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:23,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2024-11-28 04:12:23,743 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-28 04:12:23,743 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:23,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:12:23,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:25,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3847 backedges. 0 proven. 3159 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:12:25,014 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:26,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3847 backedges. 0 proven. 3159 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:12:26,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382912867] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:12:26,267 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:12:26,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 20, 20] total 62 [2024-11-28 04:12:26,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491089605] [2024-11-28 04:12:26,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:26,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-28 04:12:26,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:26,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-28 04:12:26,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1093, Invalid=2813, Unknown=0, NotChecked=0, Total=3906 [2024-11-28 04:12:26,272 INFO L87 Difference]: Start difference. First operand 19386 states and 20919 transitions. Second operand has 63 states, 62 states have (on average 16.483870967741936) internal successors, (1022), 63 states have internal predecessors, (1022), 58 states have call successors, (59), 1 states have call predecessors, (59), 2 states have return successors, (59), 57 states have call predecessors, (59), 58 states have call successors, (59) [2024-11-28 04:12:30,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:30,790 INFO L93 Difference]: Finished difference Result 27401 states and 30124 transitions. [2024-11-28 04:12:30,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-28 04:12:30,790 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 16.483870967741936) internal successors, (1022), 63 states have internal predecessors, (1022), 58 states have call successors, (59), 1 states have call predecessors, (59), 2 states have return successors, (59), 57 states have call predecessors, (59), 58 states have call successors, (59) Word has length 445 [2024-11-28 04:12:30,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:30,821 INFO L225 Difference]: With dead ends: 27401 [2024-11-28 04:12:30,821 INFO L226 Difference]: Without dead ends: 27400 [2024-11-28 04:12:30,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 952 GetRequests, 854 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2184 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=3276, Invalid=6624, Unknown=0, NotChecked=0, Total=9900 [2024-11-28 04:12:30,824 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 145 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:30,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 484 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:12:30,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27400 states. [2024-11-28 04:12:32,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27400 to 26986. [2024-11-28 04:12:32,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26986 states, 25563 states have (on average 1.0352853733912295) internal successors, (26465), 25566 states have internal predecessors, (26465), 1417 states have call successors, (1417), 2 states have call predecessors, (1417), 2 states have return successors, (1417), 1417 states have call predecessors, (1417), 1417 states have call successors, (1417) [2024-11-28 04:12:32,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26986 states to 26986 states and 29299 transitions. [2024-11-28 04:12:32,817 INFO L78 Accepts]: Start accepts. Automaton has 26986 states and 29299 transitions. Word has length 445 [2024-11-28 04:12:32,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:32,817 INFO L471 AbstractCegarLoop]: Abstraction has 26986 states and 29299 transitions. [2024-11-28 04:12:32,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 16.483870967741936) internal successors, (1022), 63 states have internal predecessors, (1022), 58 states have call successors, (59), 1 states have call predecessors, (59), 2 states have return successors, (59), 57 states have call predecessors, (59), 58 states have call successors, (59) [2024-11-28 04:12:32,817 INFO L276 IsEmpty]: Start isEmpty. Operand 26986 states and 29299 transitions. [2024-11-28 04:12:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-28 04:12:32,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:32,822 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 18, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:32,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2024-11-28 04:12:33,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:33,023 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:12:33,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:33,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1564061900, now seen corresponding path program 3 times [2024-11-28 04:12:33,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:33,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480543159] [2024-11-28 04:12:33,023 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:12:33,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:33,101 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-28 04:12:33,102 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:33,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:12:33,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:33,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480543159] [2024-11-28 04:12:33,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480543159] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:33,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323720632] [2024-11-28 04:12:33,989 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:12:33,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:33,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:33,992 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:33,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2024-11-28 04:12:34,215 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 19 check-sat command(s) [2024-11-28 04:12:34,215 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:12:34,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:12:34,222 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:34,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:12:34,874 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3901 backedges. 0 proven. 3213 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2024-11-28 04:12:36,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323720632] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:12:36,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:12:36,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 40 [2024-11-28 04:12:36,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747671712] [2024-11-28 04:12:36,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:36,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-28 04:12:36,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:36,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-28 04:12:36,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:12:36,035 INFO L87 Difference]: Start difference. First operand 26986 states and 29299 transitions. Second operand has 41 states, 40 states have (on average 17.675) internal successors, (707), 41 states have internal predecessors, (707), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:12:48,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:48,519 INFO L93 Difference]: Finished difference Result 75813 states and 81851 transitions. [2024-11-28 04:12:48,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 04:12:48,519 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 17.675) internal successors, (707), 41 states have internal predecessors, (707), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) Word has length 448 [2024-11-28 04:12:48,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:48,629 INFO L225 Difference]: With dead ends: 75813 [2024-11-28 04:12:48,629 INFO L226 Difference]: Without dead ends: 75812 [2024-11-28 04:12:48,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 914 GetRequests, 875 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 04:12:48,641 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 716 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:48,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 772 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:12:48,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75812 states. [2024-11-28 04:12:52,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75812 to 53946. [2024-11-28 04:12:52,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53946 states, 51103 states have (on average 1.0372189499637987) internal successors, (53005), 51106 states have internal predecessors, (53005), 2837 states have call successors, (2837), 2 states have call predecessors, (2837), 2 states have return successors, (2837), 2837 states have call predecessors, (2837), 2837 states have call successors, (2837) [2024-11-28 04:12:52,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53946 states to 53946 states and 58679 transitions. [2024-11-28 04:12:52,505 INFO L78 Accepts]: Start accepts. Automaton has 53946 states and 58679 transitions. Word has length 448 [2024-11-28 04:12:52,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:12:52,506 INFO L471 AbstractCegarLoop]: Abstraction has 53946 states and 58679 transitions. [2024-11-28 04:12:52,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 17.675) internal successors, (707), 41 states have internal predecessors, (707), 40 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 40 states have call predecessors, (41), 40 states have call successors, (41) [2024-11-28 04:12:52,506 INFO L276 IsEmpty]: Start isEmpty. Operand 53946 states and 58679 transitions. [2024-11-28 04:12:52,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-28 04:12:52,511 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:12:52,512 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 20, 20, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 14, 14, 14, 14, 14, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:12:52,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2024-11-28 04:12:52,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:52,712 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:12:52,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:12:52,713 INFO L85 PathProgramCache]: Analyzing trace with hash 520499637, now seen corresponding path program 31 times [2024-11-28 04:12:52,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:12:52,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809867481] [2024-11-28 04:12:52,713 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:12:52,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:12:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:53,192 INFO L134 CoverageAnalysis]: Checked inductivity of 3771 backedges. 1600 proven. 253 refuted. 0 times theorem prover too weak. 1918 trivial. 0 not checked. [2024-11-28 04:12:53,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:12:53,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809867481] [2024-11-28 04:12:53,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809867481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:12:53,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954603389] [2024-11-28 04:12:53,193 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:12:53,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:12:53,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:12:53,196 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:12:53,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-28 04:12:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:12:53,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:12:53,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:12:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3771 backedges. 1936 proven. 253 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2024-11-28 04:12:53,885 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:12:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3771 backedges. 1600 proven. 253 refuted. 0 times theorem prover too weak. 1918 trivial. 0 not checked. [2024-11-28 04:12:54,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954603389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:12:54,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:12:54,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 16 [2024-11-28 04:12:54,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587269116] [2024-11-28 04:12:54,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:12:54,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:12:54,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:12:54,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:12:54,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:12:54,254 INFO L87 Difference]: Start difference. First operand 53946 states and 58679 transitions. Second operand has 16 states, 16 states have (on average 16.5625) internal successors, (265), 16 states have internal predecessors, (265), 15 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-28 04:12:59,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:12:59,083 INFO L93 Difference]: Finished difference Result 74399 states and 80684 transitions. [2024-11-28 04:12:59,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:12:59,084 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.5625) internal successors, (265), 16 states have internal predecessors, (265), 15 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 456 [2024-11-28 04:12:59,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:12:59,159 INFO L225 Difference]: With dead ends: 74399 [2024-11-28 04:12:59,159 INFO L226 Difference]: Without dead ends: 56178 [2024-11-28 04:12:59,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 923 GetRequests, 899 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:12:59,182 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 31 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:12:59,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 361 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:12:59,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56178 states. [2024-11-28 04:13:03,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56178 to 52356. [2024-11-28 04:13:03,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52356 states, 49593 states have (on average 1.0374044724053797) internal successors, (51448), 49596 states have internal predecessors, (51448), 2757 states have call successors, (2757), 2 states have call predecessors, (2757), 2 states have return successors, (2757), 2757 states have call predecessors, (2757), 2757 states have call successors, (2757) [2024-11-28 04:13:03,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52356 states to 52356 states and 56962 transitions. [2024-11-28 04:13:03,140 INFO L78 Accepts]: Start accepts. Automaton has 52356 states and 56962 transitions. Word has length 456 [2024-11-28 04:13:03,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:13:03,140 INFO L471 AbstractCegarLoop]: Abstraction has 52356 states and 56962 transitions. [2024-11-28 04:13:03,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.5625) internal successors, (265), 16 states have internal predecessors, (265), 15 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2024-11-28 04:13:03,140 INFO L276 IsEmpty]: Start isEmpty. Operand 52356 states and 56962 transitions. [2024-11-28 04:13:03,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-28 04:13:03,147 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:13:03,147 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:13:03,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-28 04:13:03,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:03,348 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 19 more)] === [2024-11-28 04:13:03,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:13:03,348 INFO L85 PathProgramCache]: Analyzing trace with hash -127900080, now seen corresponding path program 32 times [2024-11-28 04:13:03,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:13:03,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316027564] [2024-11-28 04:13:03,349 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:13:03,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:13:03,610 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:13:03,610 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:13:03,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [189801543] [2024-11-28 04:13:03,613 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:13:03,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:13:03,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:13:03,616 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:13:03,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2b0df47-ccfa-4b58-a761-2f06ebc04cb4/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2024-11-28 04:13:03,808 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:13:03,809 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:13:03,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:13:03,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:13:05,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4350 backedges. 0 proven. 2767 refuted. 0 times theorem prover too weak. 1583 trivial. 0 not checked. [2024-11-28 04:13:05,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:13:05,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:13:05,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316027564] [2024-11-28 04:13:05,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:13:05,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189801543] [2024-11-28 04:13:05,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189801543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:13:05,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:13:05,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-28 04:13:05,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754706605] [2024-11-28 04:13:05,820 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:13:05,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:13:05,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:13:05,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:13:05,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:13:05,823 INFO L87 Difference]: Start difference. First operand 52356 states and 56962 transitions. Second operand has 15 states, 14 states have (on average 15.571428571428571) internal successors, (218), 15 states have internal predecessors, (218), 12 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13)