./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.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_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/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_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/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_ee3f089d-a9b7-4825-8e07-7931ccb00178/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 1fbe6596ea58bb65874b731661e9f9f596a91893af06dcebaa497157579c7f46 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:31:19,514 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:31:19,601 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 23:31:19,612 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:31:19,613 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:31:19,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:31:19,654 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:31:19,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:31:19,655 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:31:19,655 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:31:19,656 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:31:19,656 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:31:19,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:31:19,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:31:19,657 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:31:19,657 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:31:19,658 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:31:19,658 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:31:19,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:31:19,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:31:19,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:31:19,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:31:19,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:31:19,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:31:19,659 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 23:31:19,659 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:31:19,659 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:31:19,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:31:19,659 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:31:19,659 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:31:19,660 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:31:19,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:19,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:19,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:19,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:19,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:31:19,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:19,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:19,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:19,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:19,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:31:19,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:31:19,662 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:31:19,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:31:19,662 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:31:19,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:31:19,662 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:31:19,662 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:31:19,662 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:31:19,662 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:31:19,662 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_ee3f089d-a9b7-4825-8e07-7931ccb00178/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 -> 1fbe6596ea58bb65874b731661e9f9f596a91893af06dcebaa497157579c7f46 [2024-11-27 23:31:19,994 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:31:20,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:31:20,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:31:20,013 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:31:20,013 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:31:20,015 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.c [2024-11-27 23:31:23,031 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/data/b83985421/dbad33f0302a4da19e05a6e30b550f4c/FLAG0ed434ae8 [2024-11-27 23:31:23,318 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:31:23,319 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/sv-benchmarks/c/nla-digbench-scaling/ps4-ll_valuebound20.c [2024-11-27 23:31:23,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/data/b83985421/dbad33f0302a4da19e05a6e30b550f4c/FLAG0ed434ae8 [2024-11-27 23:31:23,622 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/data/b83985421/dbad33f0302a4da19e05a6e30b550f4c [2024-11-27 23:31:23,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:31:23,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:31:23,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:23,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:31:23,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:31:23,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1751ae9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23, skipping insertion in model container [2024-11-27 23:31:23,640 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,656 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:31:23,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:23,870 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:31:23,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:23,898 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:31:23,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23 WrapperNode [2024-11-27 23:31:23,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:23,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:23,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:31:23,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:31:23,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,933 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 103 [2024-11-27 23:31:23,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:23,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:31:23,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:31:23,934 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:31:23,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,945 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,961 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]. [2024-11-27 23:31:23,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,968 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,976 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,977 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,978 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:31:23,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:31:23,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:31:23,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:31:23,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (1/1) ... [2024-11-27 23:31:23,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:24,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:24,034 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:31:24,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:31:24,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:31:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:31:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:31:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:31:24,068 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 23:31:24,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 23:31:24,130 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:31:24,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:31:24,620 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-27 23:31:24,620 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:31:24,640 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:31:24,640 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:31:24,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:24 BoogieIcfgContainer [2024-11-27 23:31:24,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:31:24,645 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:31:24,645 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:31:24,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:31:24,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:31:23" (1/3) ... [2024-11-27 23:31:24,651 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604960e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:24, skipping insertion in model container [2024-11-27 23:31:24,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:23" (2/3) ... [2024-11-27 23:31:24,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@604960e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:24, skipping insertion in model container [2024-11-27 23:31:24,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:24" (3/3) ... [2024-11-27 23:31:24,653 INFO L128 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound20.c [2024-11-27 23:31:24,666 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:31:24,668 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG ps4-ll_valuebound20.c that has 2 procedures, 138 locations, 1 initial locations, 1 loop locations, and 60 error locations. [2024-11-27 23:31:24,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:31:24,743 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;@7233916a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:31:24,743 INFO L334 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2024-11-27 23:31:24,747 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 73 states have (on average 1.8904109589041096) internal successors, (138), 133 states have internal predecessors, (138), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 23:31:24,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 23:31:24,753 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:24,753 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 23:31:24,754 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:31:24,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:24,759 INFO L85 PathProgramCache]: Analyzing trace with hash 28693835, now seen corresponding path program 1 times [2024-11-27 23:31:24,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:24,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194760784] [2024-11-27 23:31:24,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:24,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:24,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:24,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:24,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194760784] [2024-11-27 23:31:24,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194760784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:24,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:24,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:31:24,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918452632] [2024-11-27 23:31:24,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:24,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:31:24,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:24,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:31:24,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:31:24,933 INFO L87 Difference]: Start difference. First operand has 138 states, 73 states have (on average 1.8904109589041096) internal successors, (138), 133 states have internal predecessors, (138), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:24,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:24,972 INFO L93 Difference]: Finished difference Result 262 states and 286 transitions. [2024-11-27 23:31:24,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:31:24,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-27 23:31:24,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:24,983 INFO L225 Difference]: With dead ends: 262 [2024-11-27 23:31:24,984 INFO L226 Difference]: Without dead ends: 121 [2024-11-27 23:31:24,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:31:24,993 INFO L435 NwaCegarLoop]: 129 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, 129 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:24,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:25,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-27 23:31:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-27 23:31:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 68 states have (on average 1.7352941176470589) internal successors, (118), 117 states have internal predecessors, (118), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:31:25,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 122 transitions. [2024-11-27 23:31:25,060 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 122 transitions. Word has length 5 [2024-11-27 23:31:25,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:25,060 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 122 transitions. [2024-11-27 23:31:25,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:25,061 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 122 transitions. [2024-11-27 23:31:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-27 23:31:25,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:25,061 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-27 23:31:25,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:31:25,062 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:31:25,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:25,064 INFO L85 PathProgramCache]: Analyzing trace with hash 28695757, now seen corresponding path program 1 times [2024-11-27 23:31:25,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:25,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325428697] [2024-11-27 23:31:25,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:25,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:25,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:25,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:25,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325428697] [2024-11-27 23:31:25,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325428697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:25,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:25,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:31:25,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213421008] [2024-11-27 23:31:25,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:25,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:25,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:25,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:25,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:25,190 INFO L87 Difference]: Start difference. First operand 121 states and 122 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:25,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:25,423 INFO L93 Difference]: Finished difference Result 226 states and 237 transitions. [2024-11-27 23:31:25,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:25,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-27 23:31:25,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:25,427 INFO L225 Difference]: With dead ends: 226 [2024-11-27 23:31:25,427 INFO L226 Difference]: Without dead ends: 215 [2024-11-27 23:31:25,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:25,431 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 92 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:25,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 182 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:31:25,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-27 23:31:25,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 173. [2024-11-27 23:31:25,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 118 states have (on average 1.6864406779661016) internal successors, (199), 167 states have internal predecessors, (199), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:31:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 207 transitions. [2024-11-27 23:31:25,447 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 207 transitions. Word has length 5 [2024-11-27 23:31:25,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:25,447 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 207 transitions. [2024-11-27 23:31:25,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:25,447 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 207 transitions. [2024-11-27 23:31:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-27 23:31:25,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:25,448 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:25,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:31:25,448 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:31:25,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:25,448 INFO L85 PathProgramCache]: Analyzing trace with hash 176855592, now seen corresponding path program 1 times [2024-11-27 23:31:25,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:25,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408434133] [2024-11-27 23:31:25,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:25,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:25,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:31:25,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [893114995] [2024-11-27 23:31:25,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:25,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:25,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:25,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:25,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:31:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:25,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:31:25,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:25,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:25,563 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:25,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:25,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408434133] [2024-11-27 23:31:25,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:25,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893114995] [2024-11-27 23:31:25,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893114995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:25,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:25,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:31:25,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381303339] [2024-11-27 23:31:25,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:25,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:25,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:25,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:25,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:25,566 INFO L87 Difference]: Start difference. First operand 173 states and 207 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:25,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:25,924 INFO L93 Difference]: Finished difference Result 206 states and 215 transitions. [2024-11-27 23:31:25,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:25,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-27 23:31:25,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:25,926 INFO L225 Difference]: With dead ends: 206 [2024-11-27 23:31:25,926 INFO L226 Difference]: Without dead ends: 179 [2024-11-27 23:31:25,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:25,928 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 52 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:25,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 93 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:31:25,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-27 23:31:25,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 177. [2024-11-27 23:31:25,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 122 states have (on average 1.4754098360655739) internal successors, (180), 171 states have internal predecessors, (180), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:31:25,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 188 transitions. [2024-11-27 23:31:25,940 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 188 transitions. Word has length 8 [2024-11-27 23:31:25,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:25,940 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 188 transitions. [2024-11-27 23:31:25,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:25,940 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 188 transitions. [2024-11-27 23:31:25,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-27 23:31:25,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:25,941 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:25,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:26,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:26,145 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:31:26,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:26,146 INFO L85 PathProgramCache]: Analyzing trace with hash 226916693, now seen corresponding path program 1 times [2024-11-27 23:31:26,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:26,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029146432] [2024-11-27 23:31:26,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:26,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:26,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:26,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:26,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029146432] [2024-11-27 23:31:26,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029146432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:26,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:26,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:26,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423045702] [2024-11-27 23:31:26,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:26,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:31:26,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:26,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:31:26,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:26,255 INFO L87 Difference]: Start difference. First operand 177 states and 188 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:26,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:26,677 INFO L93 Difference]: Finished difference Result 194 states and 199 transitions. [2024-11-27 23:31:26,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:31:26,678 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-27 23:31:26,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:26,679 INFO L225 Difference]: With dead ends: 194 [2024-11-27 23:31:26,679 INFO L226 Difference]: Without dead ends: 160 [2024-11-27 23:31:26,679 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 [2024-11-27 23:31:26,680 INFO L435 NwaCegarLoop]: 68 mSDtfsCounter, 63 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:26,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 168 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:31:26,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-27 23:31:26,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 149. [2024-11-27 23:31:26,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 95 states have (on average 1.5473684210526315) internal successors, (147), 144 states have internal predecessors, (147), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 23:31:26,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 153 transitions. [2024-11-27 23:31:26,704 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 153 transitions. Word has length 13 [2024-11-27 23:31:26,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:26,704 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 153 transitions. [2024-11-27 23:31:26,704 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:26,704 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 153 transitions. [2024-11-27 23:31:26,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-27 23:31:26,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:26,705 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:26,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:31:26,706 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:31:26,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:26,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1594744630, now seen corresponding path program 1 times [2024-11-27 23:31:26,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:26,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326690335] [2024-11-27 23:31:26,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:26,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:26,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:26,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:26,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326690335] [2024-11-27 23:31:26,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326690335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:26,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:26,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:31:26,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541262860] [2024-11-27 23:31:26,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:26,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:26,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:26,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:26,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:26,851 INFO L87 Difference]: Start difference. First operand 149 states and 153 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:26,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:26,874 INFO L93 Difference]: Finished difference Result 151 states and 153 transitions. [2024-11-27 23:31:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:26,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-11-27 23:31:26,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:26,876 INFO L225 Difference]: With dead ends: 151 [2024-11-27 23:31:26,876 INFO L226 Difference]: Without dead ends: 149 [2024-11-27 23:31:26,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:26,878 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 1 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 233 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 [2024-11-27 23:31:26,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 233 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:26,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-27 23:31:26,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-27 23:31:26,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 95 states have (on average 1.5263157894736843) internal successors, (145), 144 states have internal predecessors, (145), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-27 23:31:26,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 151 transitions. [2024-11-27 23:31:26,887 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 151 transitions. Word has length 33 [2024-11-27 23:31:26,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:26,888 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 151 transitions. [2024-11-27 23:31:26,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:26,888 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 151 transitions. [2024-11-27 23:31:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 23:31:26,889 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:26,889 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:26,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:31:26,889 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:31:26,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:26,890 INFO L85 PathProgramCache]: Analyzing trace with hash -341122509, now seen corresponding path program 1 times [2024-11-27 23:31:26,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:26,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602402844] [2024-11-27 23:31:26,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:26,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:26,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:31:26,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156251902] [2024-11-27 23:31:26,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:26,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:26,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:26,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:26,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:31:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:27,003 INFO L256 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:31:27,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:27,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:27,103 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:27,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:27,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602402844] [2024-11-27 23:31:27,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:27,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156251902] [2024-11-27 23:31:27,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156251902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:27,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:27,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:27,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781445185] [2024-11-27 23:31:27,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:27,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:31:27,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:27,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:31:27,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:27,105 INFO L87 Difference]: Start difference. First operand 149 states and 151 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:27,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:27,472 INFO L93 Difference]: Finished difference Result 244 states and 266 transitions. [2024-11-27 23:31:27,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:31:27,472 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-27 23:31:27,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:27,474 INFO L225 Difference]: With dead ends: 244 [2024-11-27 23:31:27,474 INFO L226 Difference]: Without dead ends: 218 [2024-11-27 23:31:27,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:27,475 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 65 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:27,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 103 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:31:27,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-27 23:31:27,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 210. [2024-11-27 23:31:27,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 154 states have (on average 1.474025974025974) internal successors, (227), 203 states have internal predecessors, (227), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:31:27,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 237 transitions. [2024-11-27 23:31:27,485 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 237 transitions. Word has length 38 [2024-11-27 23:31:27,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:27,486 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 237 transitions. [2024-11-27 23:31:27,486 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:27,486 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 237 transitions. [2024-11-27 23:31:27,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 23:31:27,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:27,487 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:27,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:31:27,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:27,688 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:31:27,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:27,688 INFO L85 PathProgramCache]: Analyzing trace with hash -487932994, now seen corresponding path program 1 times [2024-11-27 23:31:27,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:27,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337450127] [2024-11-27 23:31:27,688 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:27,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:27,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:27,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:27,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337450127] [2024-11-27 23:31:27,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337450127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:27,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:27,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:27,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529685450] [2024-11-27 23:31:27,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:27,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:31:27,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:27,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:31:27,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:27,823 INFO L87 Difference]: Start difference. First operand 210 states and 237 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:28,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:28,111 INFO L93 Difference]: Finished difference Result 211 states and 237 transitions. [2024-11-27 23:31:28,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:28,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2024-11-27 23:31:28,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:28,113 INFO L225 Difference]: With dead ends: 211 [2024-11-27 23:31:28,113 INFO L226 Difference]: Without dead ends: 210 [2024-11-27 23:31:28,114 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 [2024-11-27 23:31:28,115 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 29 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:28,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 191 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:31:28,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-27 23:31:28,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-27 23:31:28,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 154 states have (on average 1.4675324675324675) internal successors, (226), 203 states have internal predecessors, (226), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:31:28,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 236 transitions. [2024-11-27 23:31:28,134 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 236 transitions. Word has length 41 [2024-11-27 23:31:28,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:28,135 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 236 transitions. [2024-11-27 23:31:28,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:28,135 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 236 transitions. [2024-11-27 23:31:28,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-27 23:31:28,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:28,136 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:28,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 23:31:28,136 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:31:28,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:28,137 INFO L85 PathProgramCache]: Analyzing trace with hash 2053946487, now seen corresponding path program 1 times [2024-11-27 23:31:28,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:28,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025470621] [2024-11-27 23:31:28,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:28,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:28,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:28,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:28,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:28,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025470621] [2024-11-27 23:31:28,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025470621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:28,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:28,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:28,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692377317] [2024-11-27 23:31:28,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:28,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:31:28,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:28,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:31:28,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 23:31:28,314 INFO L87 Difference]: Start difference. First operand 210 states and 236 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:28,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:28,564 INFO L93 Difference]: Finished difference Result 211 states and 236 transitions. [2024-11-27 23:31:28,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:31:28,565 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2024-11-27 23:31:28,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:28,566 INFO L225 Difference]: With dead ends: 211 [2024-11-27 23:31:28,566 INFO L226 Difference]: Without dead ends: 210 [2024-11-27 23:31:28,566 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 [2024-11-27 23:31:28,567 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 26 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:28,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 196 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:31:28,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-27 23:31:28,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-27 23:31:28,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 154 states have (on average 1.4610389610389611) internal successors, (225), 203 states have internal predecessors, (225), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:31:28,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 235 transitions. [2024-11-27 23:31:28,576 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 235 transitions. Word has length 42 [2024-11-27 23:31:28,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:28,576 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 235 transitions. [2024-11-27 23:31:28,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:31:28,577 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 235 transitions. [2024-11-27 23:31:28,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-27 23:31:28,578 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:28,578 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:28,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 23:31:28,578 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:31:28,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:28,579 INFO L85 PathProgramCache]: Analyzing trace with hash -752168294, now seen corresponding path program 1 times [2024-11-27 23:31:28,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:28,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704464646] [2024-11-27 23:31:28,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:28,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:31:28,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [421741372] [2024-11-27 23:31:28,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:28,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:28,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:28,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:28,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:31:28,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:28,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:31:28,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:28,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:28,909 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:29,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:29,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:29,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704464646] [2024-11-27 23:31:29,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:29,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421741372] [2024-11-27 23:31:29,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421741372] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:29,090 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:29,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-27 23:31:29,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505484220] [2024-11-27 23:31:29,090 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:29,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:31:29,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:29,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:31:29,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:31:29,091 INFO L87 Difference]: Start difference. First operand 210 states and 235 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:31:29,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:29,911 INFO L93 Difference]: Finished difference Result 235 states and 249 transitions. [2024-11-27 23:31:29,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 23:31:29,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2024-11-27 23:31:29,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:29,913 INFO L225 Difference]: With dead ends: 235 [2024-11-27 23:31:29,913 INFO L226 Difference]: Without dead ends: 222 [2024-11-27 23:31:29,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:31:29,914 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 314 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:29,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 81 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:31:29,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2024-11-27 23:31:29,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 211. [2024-11-27 23:31:29,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 158 states have (on average 1.379746835443038) internal successors, (218), 204 states have internal predecessors, (218), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:31:29,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 228 transitions. [2024-11-27 23:31:29,924 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 228 transitions. Word has length 43 [2024-11-27 23:31:29,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:29,925 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 228 transitions. [2024-11-27 23:31:29,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:31:29,925 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 228 transitions. [2024-11-27 23:31:29,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-27 23:31:29,926 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:29,928 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:29,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:30,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:30,129 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:31:30,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:30,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1677939234, now seen corresponding path program 1 times [2024-11-27 23:31:30,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:30,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501276097] [2024-11-27 23:31:30,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:30,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:30,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:31:30,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [12109941] [2024-11-27 23:31:30,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:30,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:30,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:30,156 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:30,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:31:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:30,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:31:30,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:30,492 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:31:31,187 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:31:31,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:31,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501276097] [2024-11-27 23:31:31,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:31:31,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [12109941] [2024-11-27 23:31:31,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [12109941] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:31:31,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:31:31,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 23:31:31,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637879878] [2024-11-27 23:31:31,187 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:31:31,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:31:31,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:31,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:31:31,188 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:31:31,189 INFO L87 Difference]: Start difference. First operand 211 states and 228 transitions. Second operand has 10 states, 9 states have (on average 10.444444444444445) internal successors, (94), 10 states have internal predecessors, (94), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:31:34,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:31:38,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:31:42,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:31:48,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.69s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:31:52,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:31:56,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:32:00,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:32:05,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:32:10,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:32:14,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:32:18,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:32:22,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:32:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:22,638 INFO L93 Difference]: Finished difference Result 226 states and 233 transitions. [2024-11-27 23:32:22,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:32:22,638 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2024-11-27 23:32:22,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:22,640 INFO L225 Difference]: With dead ends: 226 [2024-11-27 23:32:22,640 INFO L226 Difference]: Without dead ends: 198 [2024-11-27 23:32:22,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:32:22,641 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 358 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 75 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:22,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 92 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 643 Invalid, 11 Unknown, 0 Unchecked, 51.3s Time] [2024-11-27 23:32:22,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-27 23:32:22,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 187. [2024-11-27 23:32:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 137 states have (on average 1.3795620437956204) internal successors, (189), 181 states have internal predecessors, (189), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:22,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 197 transitions. [2024-11-27 23:32:22,652 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 197 transitions. Word has length 51 [2024-11-27 23:32:22,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:22,653 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 197 transitions. [2024-11-27 23:32:22,653 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), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:32:22,653 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 197 transitions. [2024-11-27 23:32:22,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-27 23:32:22,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:22,655 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:22,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:32:22,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:22,859 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:32:22,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:22,860 INFO L85 PathProgramCache]: Analyzing trace with hash -987017380, now seen corresponding path program 1 times [2024-11-27 23:32:22,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:22,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718000926] [2024-11-27 23:32:22,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:22,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:32:22,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1382855745] [2024-11-27 23:32:22,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:22,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:22,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:22,882 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:22,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:32:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:22,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 23:32:22,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:32:23,210 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:23,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:23,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718000926] [2024-11-27 23:32:23,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:32:23,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382855745] [2024-11-27 23:32:23,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382855745] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:23,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:23,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 23:32:23,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299624291] [2024-11-27 23:32:23,461 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:23,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:32:23,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:23,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:32:23,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:32:23,462 INFO L87 Difference]: Start difference. First operand 187 states and 197 transitions. Second operand has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:32:23,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:23,732 INFO L93 Difference]: Finished difference Result 187 states and 197 transitions. [2024-11-27 23:32:23,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:32:23,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 71 [2024-11-27 23:32:23,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:23,734 INFO L225 Difference]: With dead ends: 187 [2024-11-27 23:32:23,734 INFO L226 Difference]: Without dead ends: 177 [2024-11-27 23:32:23,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:32:23,735 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 74 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:23,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 42 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:32:23,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-27 23:32:23,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2024-11-27 23:32:23,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 134 states have (on average 1.291044776119403) internal successors, (173), 168 states have internal predecessors, (173), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:23,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 181 transitions. [2024-11-27 23:32:23,744 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 181 transitions. Word has length 71 [2024-11-27 23:32:23,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:23,744 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 181 transitions. [2024-11-27 23:32:23,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:32:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 181 transitions. [2024-11-27 23:32:23,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-27 23:32:23,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:23,745 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:23,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:23,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:23,946 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:32:23,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:23,946 INFO L85 PathProgramCache]: Analyzing trace with hash -532767584, now seen corresponding path program 1 times [2024-11-27 23:32:23,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:23,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064169164] [2024-11-27 23:32:23,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:23,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:23,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:32:23,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [328478085] [2024-11-27 23:32:23,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:23,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:23,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:23,972 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:23,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:32:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:24,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:32:24,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:24,323 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:32:24,323 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:24,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:24,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064169164] [2024-11-27 23:32:24,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:32:24,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328478085] [2024-11-27 23:32:24,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328478085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:24,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:24,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 23:32:24,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896239827] [2024-11-27 23:32:24,461 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:24,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:32:24,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:24,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:32:24,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:32:24,462 INFO L87 Difference]: Start difference. First operand 174 states and 181 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:32:24,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:24,780 INFO L93 Difference]: Finished difference Result 177 states and 181 transitions. [2024-11-27 23:32:24,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:32:24,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2024-11-27 23:32:24,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:24,782 INFO L225 Difference]: With dead ends: 177 [2024-11-27 23:32:24,782 INFO L226 Difference]: Without dead ends: 173 [2024-11-27 23:32:24,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:32:24,783 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 6 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:24,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 121 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:32:24,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-27 23:32:24,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-27 23:32:24,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 133 states have (on average 1.2706766917293233) internal successors, (169), 167 states have internal predecessors, (169), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:24,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 177 transitions. [2024-11-27 23:32:24,791 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 177 transitions. Word has length 72 [2024-11-27 23:32:24,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:24,791 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 177 transitions. [2024-11-27 23:32:24,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:32:24,791 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 177 transitions. [2024-11-27 23:32:24,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-27 23:32:24,792 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:24,792 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:24,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:24,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:24,993 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:32:24,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:24,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1774811040, now seen corresponding path program 1 times [2024-11-27 23:32:24,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:24,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593872066] [2024-11-27 23:32:24,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:24,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:25,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:32:25,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [904762976] [2024-11-27 23:32:25,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:25,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:25,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:25,031 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:25,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:32:25,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:25,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 23:32:25,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:32:25,362 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:25,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:25,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593872066] [2024-11-27 23:32:25,555 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:32:25,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904762976] [2024-11-27 23:32:25,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904762976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:25,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:25,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 23:32:25,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824437283] [2024-11-27 23:32:25,556 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:25,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:32:25,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:25,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:32:25,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:32:25,559 INFO L87 Difference]: Start difference. First operand 173 states and 177 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:32:25,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:25,905 INFO L93 Difference]: Finished difference Result 174 states and 177 transitions. [2024-11-27 23:32:25,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:32:25,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 75 [2024-11-27 23:32:25,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:25,907 INFO L225 Difference]: With dead ends: 174 [2024-11-27 23:32:25,907 INFO L226 Difference]: Without dead ends: 168 [2024-11-27 23:32:25,907 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:32:25,907 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 6 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:25,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 128 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:32:25,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-27 23:32:25,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-11-27 23:32:25,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 128 states have (on average 1.2734375) internal successors, (163), 162 states have internal predecessors, (163), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:25,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 171 transitions. [2024-11-27 23:32:25,915 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 171 transitions. Word has length 75 [2024-11-27 23:32:25,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:25,916 INFO L471 AbstractCegarLoop]: Abstraction has 168 states and 171 transitions. [2024-11-27 23:32:25,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:32:25,916 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 171 transitions. [2024-11-27 23:32:25,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-27 23:32:25,917 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:25,917 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:25,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:26,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:26,121 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:32:26,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:26,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1910020614, now seen corresponding path program 1 times [2024-11-27 23:32:26,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:26,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780711006] [2024-11-27 23:32:26,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:26,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:32:26,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960977832] [2024-11-27 23:32:26,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:26,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:26,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:26,142 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:26,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:32:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:26,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:32:26,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:26,323 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:32:26,323 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:26,519 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:32:26,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:26,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780711006] [2024-11-27 23:32:26,521 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:32:26,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960977832] [2024-11-27 23:32:26,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960977832] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:26,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:32:26,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-11-27 23:32:26,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865773092] [2024-11-27 23:32:26,521 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:26,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:32:26,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:26,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:32:26,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-27 23:32:26,523 INFO L87 Difference]: Start difference. First operand 168 states and 171 transitions. Second operand has 8 states, 7 states have (on average 18.857142857142858) internal successors, (132), 8 states have internal predecessors, (132), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:27,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:27,000 INFO L93 Difference]: Finished difference Result 247 states and 277 transitions. [2024-11-27 23:32:27,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:32:27,001 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.857142857142858) internal successors, (132), 8 states have internal predecessors, (132), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 76 [2024-11-27 23:32:27,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:27,002 INFO L225 Difference]: With dead ends: 247 [2024-11-27 23:32:27,002 INFO L226 Difference]: Without dead ends: 229 [2024-11-27 23:32:27,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:32:27,003 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 293 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:27,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 120 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:32:27,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2024-11-27 23:32:27,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 212. [2024-11-27 23:32:27,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 179 states have (on average 1.217877094972067) internal successors, (218), 204 states have internal predecessors, (218), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 23:32:27,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 230 transitions. [2024-11-27 23:32:27,013 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 230 transitions. Word has length 76 [2024-11-27 23:32:27,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:27,013 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 230 transitions. [2024-11-27 23:32:27,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.857142857142858) internal successors, (132), 8 states have internal predecessors, (132), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:27,014 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 230 transitions. [2024-11-27 23:32:27,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-27 23:32:27,014 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:27,014 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:27,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:27,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:27,215 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:32:27,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:27,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1082413770, now seen corresponding path program 1 times [2024-11-27 23:32:27,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:27,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049915185] [2024-11-27 23:32:27,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:27,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:27,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:32:27,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [876089787] [2024-11-27 23:32:27,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:27,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:27,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:27,250 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:27,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:32:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:27,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:32:27,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:27,591 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:32:27,591 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:28,145 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:32:28,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049915185] [2024-11-27 23:32:28,146 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:32:28,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876089787] [2024-11-27 23:32:28,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876089787] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:28,146 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:32:28,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2024-11-27 23:32:28,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274339522] [2024-11-27 23:32:28,146 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:28,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:32:28,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:28,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:32:28,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:32:28,148 INFO L87 Difference]: Start difference. First operand 212 states and 230 transitions. Second operand has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:32,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:32:36,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:32:40,709 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 [] [2024-11-27 23:32:41,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:41,625 INFO L93 Difference]: Finished difference Result 231 states and 255 transitions. [2024-11-27 23:32:41,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:32:41,626 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 80 [2024-11-27 23:32:41,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:41,627 INFO L225 Difference]: With dead ends: 231 [2024-11-27 23:32:41,627 INFO L226 Difference]: Without dead ends: 230 [2024-11-27 23:32:41,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2024-11-27 23:32:41,630 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 302 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 26 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:41,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 89 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 635 Invalid, 3 Unknown, 0 Unchecked, 13.3s Time] [2024-11-27 23:32:41,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-27 23:32:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 211. [2024-11-27 23:32:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 179 states have (on average 1.2067039106145252) internal successors, (216), 203 states have internal predecessors, (216), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 23:32:41,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 228 transitions. [2024-11-27 23:32:41,645 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 228 transitions. Word has length 80 [2024-11-27 23:32:41,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:41,646 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 228 transitions. [2024-11-27 23:32:41,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 14.0) internal successors, (140), 11 states have internal predecessors, (140), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:41,646 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 228 transitions. [2024-11-27 23:32:41,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-27 23:32:41,647 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:41,647 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:32:41,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:41,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 23:32:41,851 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:32:41,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:41,852 INFO L85 PathProgramCache]: Analyzing trace with hash 817548908, now seen corresponding path program 1 times [2024-11-27 23:32:41,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:41,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017517255] [2024-11-27 23:32:41,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:41,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:32:41,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [424101386] [2024-11-27 23:32:41,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:41,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:41,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:41,891 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:41,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:32:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:41,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 23:32:41,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:42,281 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:32:42,281 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-27 23:32:42,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:42,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017517255] [2024-11-27 23:32:42,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:32:42,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424101386] [2024-11-27 23:32:42,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424101386] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:42,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:32:42,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-27 23:32:42,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345662984] [2024-11-27 23:32:42,589 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:42,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-27 23:32:42,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:42,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-27 23:32:42,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:32:42,590 INFO L87 Difference]: Start difference. First operand 211 states and 228 transitions. Second operand has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:43,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:43,699 INFO L93 Difference]: Finished difference Result 299 states and 342 transitions. [2024-11-27 23:32:43,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-27 23:32:43,700 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 82 [2024-11-27 23:32:43,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:43,701 INFO L225 Difference]: With dead ends: 299 [2024-11-27 23:32:43,701 INFO L226 Difference]: Without dead ends: 287 [2024-11-27 23:32:43,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2024-11-27 23:32:43,703 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 420 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:43,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 124 Invalid, 915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:32:43,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-27 23:32:43,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 249. [2024-11-27 23:32:43,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 223 states have (on average 1.1524663677130045) internal successors, (257), 240 states have internal predecessors, (257), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:32:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 271 transitions. [2024-11-27 23:32:43,729 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 271 transitions. Word has length 82 [2024-11-27 23:32:43,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:43,730 INFO L471 AbstractCegarLoop]: Abstraction has 249 states and 271 transitions. [2024-11-27 23:32:43,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 13.090909090909092) internal successors, (144), 12 states have internal predecessors, (144), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-27 23:32:43,730 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 271 transitions. [2024-11-27 23:32:43,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-27 23:32:43,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:43,732 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:32:43,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:43,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 23:32:43,932 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:32:43,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:43,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1115141193, now seen corresponding path program 1 times [2024-11-27 23:32:43,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:43,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442160619] [2024-11-27 23:32:43,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:43,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:43,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:32:43,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141468583] [2024-11-27 23:32:43,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:43,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:43,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:43,975 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:43,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 23:32:44,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:44,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 23:32:44,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 68 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:32:44,924 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:57,311 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 23:32:57,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:57,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442160619] [2024-11-27 23:32:57,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:32:57,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141468583] [2024-11-27 23:32:57,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141468583] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:57,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:57,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-27 23:32:57,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582371150] [2024-11-27 23:32:57,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:57,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:32:57,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:57,313 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:32:57,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=161, Unknown=2, NotChecked=0, Total=210 [2024-11-27 23:32:57,314 INFO L87 Difference]: Start difference. First operand 249 states and 271 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:33:03,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:07,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:11,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:15,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:19,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:23,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:27,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:31,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:36,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:40,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:50,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:52,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:33:56,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:34:00,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:34:04,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-27 23:34:04,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:04,435 INFO L93 Difference]: Finished difference Result 249 states and 271 transitions. [2024-11-27 23:34:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:34:04,436 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 97 [2024-11-27 23:34:04,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:04,438 INFO L225 Difference]: With dead ends: 249 [2024-11-27 23:34:04,438 INFO L226 Difference]: Without dead ends: 247 [2024-11-27 23:34:04,438 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=63, Invalid=206, Unknown=3, NotChecked=0, Total=272 [2024-11-27 23:34:04,439 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 154 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 17 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:04,439 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 44 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 217 Invalid, 14 Unknown, 0 Unchecked, 61.4s Time] [2024-11-27 23:34:04,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-27 23:34:04,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2024-11-27 23:34:04,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 223 states have (on average 1.1345291479820627) internal successors, (253), 238 states have internal predecessors, (253), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:34:04,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 267 transitions. [2024-11-27 23:34:04,456 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 267 transitions. Word has length 97 [2024-11-27 23:34:04,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:04,457 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 267 transitions. [2024-11-27 23:34:04,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:34:04,457 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 267 transitions. [2024-11-27 23:34:04,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-27 23:34:04,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:04,458 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:34:04,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:04,659 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 23:34:04,659 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:34:04,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:04,659 INFO L85 PathProgramCache]: Analyzing trace with hash -458973957, now seen corresponding path program 1 times [2024-11-27 23:34:04,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:04,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523135442] [2024-11-27 23:34:04,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:04,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:34:04,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1669142937] [2024-11-27 23:34:04,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:04,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:04,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:04,684 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:04,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 23:34:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:04,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 23:34:04,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 3 proven. 76 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-27 23:34:05,221 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:05,434 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-27 23:34:05,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:05,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523135442] [2024-11-27 23:34:05,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:34:05,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669142937] [2024-11-27 23:34:05,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669142937] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:05,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:05,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-27 23:34:05,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943461809] [2024-11-27 23:34:05,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:05,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:34:05,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:05,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:34:05,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-27 23:34:05,436 INFO L87 Difference]: Start difference. First operand 247 states and 267 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:34:09,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 23:34:09,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:09,204 INFO L93 Difference]: Finished difference Result 247 states and 267 transitions. [2024-11-27 23:34:09,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:34:09,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 101 [2024-11-27 23:34:09,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:09,206 INFO L225 Difference]: With dead ends: 247 [2024-11-27 23:34:09,206 INFO L226 Difference]: Without dead ends: 223 [2024-11-27 23:34:09,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:34:09,206 INFO L435 NwaCegarLoop]: 13 mSDtfsCounter, 58 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:09,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 48 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-27 23:34:09,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-27 23:34:09,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2024-11-27 23:34:09,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 202 states have (on average 1.1237623762376239) internal successors, (227), 215 states have internal predecessors, (227), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 23:34:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 239 transitions. [2024-11-27 23:34:09,223 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 239 transitions. Word has length 101 [2024-11-27 23:34:09,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:09,224 INFO L471 AbstractCegarLoop]: Abstraction has 223 states and 239 transitions. [2024-11-27 23:34:09,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-27 23:34:09,224 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 239 transitions. [2024-11-27 23:34:09,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 23:34:09,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:09,225 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:09,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:09,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 23:34:09,429 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:34:09,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:09,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1357160371, now seen corresponding path program 2 times [2024-11-27 23:34:09,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:09,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858313698] [2024-11-27 23:34:09,431 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:09,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:09,474 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:09,475 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:34:09,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [15531874] [2024-11-27 23:34:09,475 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:09,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:09,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:09,481 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:09,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 23:34:09,528 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:34:09,528 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:09,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:34:09,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:10,085 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-27 23:34:10,085 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:34:10,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:10,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858313698] [2024-11-27 23:34:10,086 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:34:10,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15531874] [2024-11-27 23:34:10,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15531874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:10,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:10,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 23:34:10,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396572041] [2024-11-27 23:34:10,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:10,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:10,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:10,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:10,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:10,088 INFO L87 Difference]: Start difference. First operand 223 states and 239 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:34:10,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:10,273 INFO L93 Difference]: Finished difference Result 223 states and 239 transitions. [2024-11-27 23:34:10,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:34:10,273 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 110 [2024-11-27 23:34:10,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:10,274 INFO L225 Difference]: With dead ends: 223 [2024-11-27 23:34:10,274 INFO L226 Difference]: Without dead ends: 185 [2024-11-27 23:34:10,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:10,275 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 57 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:10,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 59 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:34:10,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-11-27 23:34:10,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2024-11-27 23:34:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 174 states have (on average 1.0574712643678161) internal successors, (184), 178 states have internal predecessors, (184), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:34:10,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 194 transitions. [2024-11-27 23:34:10,293 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 194 transitions. Word has length 110 [2024-11-27 23:34:10,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:10,295 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 194 transitions. [2024-11-27 23:34:10,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-27 23:34:10,295 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 194 transitions. [2024-11-27 23:34:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-27 23:34:10,296 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:10,296 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-27 23:34:10,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:10,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:10,497 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:34:10,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:10,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1357161557, now seen corresponding path program 1 times [2024-11-27 23:34:10,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:10,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328378909] [2024-11-27 23:34:10,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:10,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-27 23:34:10,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:10,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328378909] [2024-11-27 23:34:10,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328378909] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:10,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078577378] [2024-11-27 23:34:10,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:10,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:10,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:10,622 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:10,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 23:34:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:10,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:34:10,681 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:10,891 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:34:10,891 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:11,094 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:34:11,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078577378] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:34:11,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:34:11,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 9 [2024-11-27 23:34:11,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201344533] [2024-11-27 23:34:11,095 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:11,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:34:11,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:11,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:34:11,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:34:11,096 INFO L87 Difference]: Start difference. First operand 185 states and 194 transitions. Second operand has 10 states, 9 states have (on average 25.444444444444443) internal successors, (229), 10 states have internal predecessors, (229), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:34:11,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:11,187 INFO L93 Difference]: Finished difference Result 187 states and 194 transitions. [2024-11-27 23:34:11,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:34:11,187 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 25.444444444444443) internal successors, (229), 10 states have internal predecessors, (229), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Word has length 110 [2024-11-27 23:34:11,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:11,188 INFO L225 Difference]: With dead ends: 187 [2024-11-27 23:34:11,189 INFO L226 Difference]: Without dead ends: 186 [2024-11-27 23:34:11,189 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=122, Unknown=0, NotChecked=0, Total=210 [2024-11-27 23:34:11,189 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 60 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:11,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 210 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:34:11,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-27 23:34:11,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 184. [2024-11-27 23:34:11,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 174 states have (on average 1.0402298850574712) internal successors, (181), 177 states have internal predecessors, (181), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:34:11,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 191 transitions. [2024-11-27 23:34:11,204 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 191 transitions. Word has length 110 [2024-11-27 23:34:11,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:11,204 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 191 transitions. [2024-11-27 23:34:11,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 25.444444444444443) internal successors, (229), 10 states have internal predecessors, (229), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-27 23:34:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 191 transitions. [2024-11-27 23:34:11,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-27 23:34:11,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:11,206 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 23:34:11,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 23:34:11,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:11,410 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:34:11,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:11,411 INFO L85 PathProgramCache]: Analyzing trace with hash 878463875, now seen corresponding path program 1 times [2024-11-27 23:34:11,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:11,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371846346] [2024-11-27 23:34:11,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:11,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:11,537 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-27 23:34:11,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:11,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371846346] [2024-11-27 23:34:11,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371846346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:11,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:11,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:34:11,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12356481] [2024-11-27 23:34:11,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:11,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:34:11,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:11,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:34:11,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:11,538 INFO L87 Difference]: Start difference. First operand 184 states and 191 transitions. Second operand has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:34:11,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:11,587 INFO L93 Difference]: Finished difference Result 184 states and 191 transitions. [2024-11-27 23:34:11,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:34:11,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 124 [2024-11-27 23:34:11,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:11,589 INFO L225 Difference]: With dead ends: 184 [2024-11-27 23:34:11,589 INFO L226 Difference]: Without dead ends: 183 [2024-11-27 23:34:11,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:34:11,589 INFO L435 NwaCegarLoop]: 20 mSDtfsCounter, 22 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:11,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 26 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:34:11,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-27 23:34:11,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-27 23:34:11,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 174 states have (on average 1.028735632183908) internal successors, (179), 176 states have internal predecessors, (179), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-27 23:34:11,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 189 transitions. [2024-11-27 23:34:11,605 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 189 transitions. Word has length 124 [2024-11-27 23:34:11,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:11,605 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 189 transitions. [2024-11-27 23:34:11,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 24.5) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-27 23:34:11,605 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 189 transitions. [2024-11-27 23:34:11,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-27 23:34:11,606 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:11,606 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-27 23:34:11,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 23:34:11,606 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:34:11,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:11,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1904771483, now seen corresponding path program 1 times [2024-11-27 23:34:11,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:11,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248800260] [2024-11-27 23:34:11,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:11,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:34:11,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307900357] [2024-11-27 23:34:11,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:11,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:11,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:11,633 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:11,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 23:34:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:11,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 23:34:11,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:34:11,896 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:12,325 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 23:34:12,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:12,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248800260] [2024-11-27 23:34:12,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:34:12,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307900357] [2024-11-27 23:34:12,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307900357] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:34:12,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:12,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 23:34:12,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672203472] [2024-11-27 23:34:12,326 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:12,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:34:12,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:12,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:34:12,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:34:12,327 INFO L87 Difference]: Start difference. First operand 183 states and 189 transitions. Second operand has 10 states, 9 states have (on average 24.666666666666668) internal successors, (222), 10 states have internal predecessors, (222), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 23:34:13,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:13,120 INFO L93 Difference]: Finished difference Result 296 states and 310 transitions. [2024-11-27 23:34:13,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:34:13,121 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 24.666666666666668) internal successors, (222), 10 states have internal predecessors, (222), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 126 [2024-11-27 23:34:13,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:13,122 INFO L225 Difference]: With dead ends: 296 [2024-11-27 23:34:13,122 INFO L226 Difference]: Without dead ends: 294 [2024-11-27 23:34:13,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:34:13,124 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 107 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:13,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 177 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:34:13,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-11-27 23:34:13,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 291. [2024-11-27 23:34:13,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 279 states have (on average 1.021505376344086) internal successors, (285), 281 states have internal predecessors, (285), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 23:34:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 301 transitions. [2024-11-27 23:34:13,146 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 301 transitions. Word has length 126 [2024-11-27 23:34:13,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:13,146 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 301 transitions. [2024-11-27 23:34:13,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 24.666666666666668) internal successors, (222), 10 states have internal predecessors, (222), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-27 23:34:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 301 transitions. [2024-11-27 23:34:13,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-27 23:34:13,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:13,150 INFO L218 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1] [2024-11-27 23:34:13,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:13,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 23:34:13,351 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:34:13,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:13,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1896033883, now seen corresponding path program 2 times [2024-11-27 23:34:13,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:13,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768005859] [2024-11-27 23:34:13,352 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:13,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:13,382 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:13,383 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:34:13,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1983003934] [2024-11-27 23:34:13,384 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:13,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:13,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:13,388 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:13,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 23:34:13,470 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:13,470 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:13,472 INFO L256 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-27 23:34:13,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:14,339 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 9 proven. 353 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 23:34:14,340 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 9 proven. 353 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 23:34:16,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:16,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768005859] [2024-11-27 23:34:16,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:34:16,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983003934] [2024-11-27 23:34:16,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983003934] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:34:16,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:16,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 27 [2024-11-27 23:34:16,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303703749] [2024-11-27 23:34:16,547 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:16,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 23:34:16,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:16,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 23:34:16,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=569, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:34:16,549 INFO L87 Difference]: Start difference. First operand 291 states and 301 transitions. Second operand has 28 states, 27 states have (on average 12.851851851851851) internal successors, (347), 28 states have internal predecessors, (347), 10 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 23:34:21,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:21,917 INFO L93 Difference]: Finished difference Result 425 states and 448 transitions. [2024-11-27 23:34:21,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-27 23:34:21,918 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 12.851851851851851) internal successors, (347), 28 states have internal predecessors, (347), 10 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 196 [2024-11-27 23:34:21,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:21,921 INFO L225 Difference]: With dead ends: 425 [2024-11-27 23:34:21,922 INFO L226 Difference]: Without dead ends: 424 [2024-11-27 23:34:21,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=665, Invalid=1591, Unknown=0, NotChecked=0, Total=2256 [2024-11-27 23:34:21,924 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 439 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 2775 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 2850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:21,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 377 Invalid, 2850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2775 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 23:34:21,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-27 23:34:21,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 421. [2024-11-27 23:34:21,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 405 states have (on average 1.0246913580246915) internal successors, (415), 407 states have internal predecessors, (415), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 23:34:21,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 439 transitions. [2024-11-27 23:34:21,966 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 439 transitions. Word has length 196 [2024-11-27 23:34:21,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:21,967 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 439 transitions. [2024-11-27 23:34:21,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 12.851851851851851) internal successors, (347), 28 states have internal predecessors, (347), 10 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-27 23:34:21,967 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 439 transitions. [2024-11-27 23:34:21,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-11-27 23:34:21,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:21,971 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 1, 1, 1, 1, 1] [2024-11-27 23:34:21,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:22,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-27 23:34:22,172 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:34:22,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:22,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1107835494, now seen corresponding path program 1 times [2024-11-27 23:34:22,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:22,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095607736] [2024-11-27 23:34:22,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:22,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 23:34:22,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1047962341] [2024-11-27 23:34:22,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:22,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:22,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:22,241 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:22,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 23:34:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:22,342 INFO L256 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 23:34:22,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:22,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1050 backedges. 0 proven. 938 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:34:22,727 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:22,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:22,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095607736] [2024-11-27 23:34:22,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:34:22,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1047962341] [2024-11-27 23:34:22,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1047962341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:22,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:22,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 23:34:22,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247016705] [2024-11-27 23:34:22,820 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:22,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 23:34:22,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:22,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 23:34:22,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:34:22,822 INFO L87 Difference]: Start difference. First operand 421 states and 439 transitions. Second operand has 11 states, 10 states have (on average 26.9) internal successors, (269), 11 states have internal predecessors, (269), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 23:34:23,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:23,222 INFO L93 Difference]: Finished difference Result 422 states and 439 transitions. [2024-11-27 23:34:23,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 23:34:23,223 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 26.9) internal successors, (269), 11 states have internal predecessors, (269), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 306 [2024-11-27 23:34:23,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:23,225 INFO L225 Difference]: With dead ends: 422 [2024-11-27 23:34:23,225 INFO L226 Difference]: Without dead ends: 421 [2024-11-27 23:34:23,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:34:23,226 INFO L435 NwaCegarLoop]: 16 mSDtfsCounter, 29 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:23,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 90 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:34:23,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-27 23:34:23,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2024-11-27 23:34:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 405 states have (on average 1.0222222222222221) internal successors, (414), 407 states have internal predecessors, (414), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-27 23:34:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 438 transitions. [2024-11-27 23:34:23,261 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 438 transitions. Word has length 306 [2024-11-27 23:34:23,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:23,262 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 438 transitions. [2024-11-27 23:34:23,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 26.9) internal successors, (269), 11 states have internal predecessors, (269), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-27 23:34:23,262 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 438 transitions. [2024-11-27 23:34:23,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2024-11-27 23:34:23,267 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:23,267 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1] [2024-11-27 23:34:23,280 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-27 23:34:23,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 23:34:23,468 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:34:23,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:23,468 INFO L85 PathProgramCache]: Analyzing trace with hash -836259324, now seen corresponding path program 2 times [2024-11-27 23:34:23,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:23,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902537277] [2024-11-27 23:34:23,468 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:23,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:23,522 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:23,522 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:34:23,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1587165910] [2024-11-27 23:34:23,523 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:34:23,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:23,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:23,527 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:23,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 23:34:23,654 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 23:34:23,654 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:23,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 23:34:23,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:24,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1016 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:34:24,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:34:25,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1016 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 23:34:25,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:25,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902537277] [2024-11-27 23:34:25,419 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 23:34:25,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587165910] [2024-11-27 23:34:25,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587165910] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:34:25,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:34:25,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-27 23:34:25,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212989428] [2024-11-27 23:34:25,419 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 23:34:25,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 23:34:25,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:25,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 23:34:25,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-27 23:34:25,422 INFO L87 Difference]: Start difference. First operand 421 states and 438 transitions. Second operand has 20 states, 19 states have (on average 29.05263157894737) internal successors, (552), 20 states have internal predecessors, (552), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 23:34:28,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:28,077 INFO L93 Difference]: Finished difference Result 639 states and 673 transitions. [2024-11-27 23:34:28,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-27 23:34:28,077 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 29.05263157894737) internal successors, (552), 20 states have internal predecessors, (552), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Word has length 316 [2024-11-27 23:34:28,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:28,079 INFO L225 Difference]: With dead ends: 639 [2024-11-27 23:34:28,079 INFO L226 Difference]: Without dead ends: 637 [2024-11-27 23:34:28,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 638 GetRequests, 612 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=278, Invalid=478, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:34:28,081 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 236 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:28,081 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 610 Invalid, 2586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2566 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 23:34:28,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2024-11-27 23:34:28,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 631. [2024-11-27 23:34:28,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 609 states have (on average 1.0147783251231528) internal successors, (618), 611 states have internal predecessors, (618), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-27 23:34:28,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 654 transitions. [2024-11-27 23:34:28,141 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 654 transitions. Word has length 316 [2024-11-27 23:34:28,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:28,142 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 654 transitions. [2024-11-27 23:34:28,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 29.05263157894737) internal successors, (552), 20 states have internal predecessors, (552), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-27 23:34:28,142 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 654 transitions. [2024-11-27 23:34:28,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-11-27 23:34:28,145 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:28,146 INFO L218 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1] [2024-11-27 23:34:28,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-27 23:34:28,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 23:34:28,350 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] === [2024-11-27 23:34:28,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:28,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1410575978, now seen corresponding path program 3 times [2024-11-27 23:34:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:28,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132519204] [2024-11-27 23:34:28,352 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:34:28,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:28,471 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-27 23:34:28,472 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 23:34:28,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1552013589] [2024-11-27 23:34:28,475 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 23:34:28,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:28,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:28,477 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:28,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee3f089d-a9b7-4825-8e07-7931ccb00178/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 23:34:30,667 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-27 23:34:30,667 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:34:30,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 54 conjuncts are in the unsatisfiable core [2024-11-27 23:34:30,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:32,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2532 backedges. 69 proven. 2280 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-27 23:34:32,085 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:40:08,160 WARN L286 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-27 23:41:58,899 WARN L286 SmtUtils]: Spent 6.51s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)