./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/cohencu-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/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_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/cohencu-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/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_157c38f8-023e-4576-9e48-f37cbcee9a8d/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 bf57d72e341b105161cbeacf29e58db93d2b67f8e0e097e4dbed74551cbdcfff --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:23:46,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:23:46,892 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-27 20:23:46,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:23:46,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:23:46,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:23:46,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:23:46,934 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:23:46,936 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:23:46,936 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:23:46,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:23:46,937 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:23:46,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:23:46,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:23:46,938 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:23:46,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:23:46,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:23:46,939 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:23:46,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:23:46,940 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:23:46,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:23:46,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:23:46,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:23:46,940 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:23:46,940 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 20:23:46,940 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:23:46,940 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:23:46,940 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:23:46,941 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:23:46,941 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:23:46,941 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:23:46,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:23:46,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:23:46,942 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:23:46,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:23:46,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:23:46,942 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:23:46,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:23:46,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:23:46,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:23:46,943 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:23:46,943 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:23:46,943 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:23:46,943 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:23:46,943 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:23:46,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:23:46,944 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:23:46,944 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:23:46,944 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:23:46,944 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:23:46,944 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_157c38f8-023e-4576-9e48-f37cbcee9a8d/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 -> bf57d72e341b105161cbeacf29e58db93d2b67f8e0e097e4dbed74551cbdcfff [2024-11-27 20:23:47,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:23:47,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:23:47,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:23:47,251 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:23:47,251 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:23:47,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench/cohencu-ll.c [2024-11-27 20:23:50,225 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/data/85bfb1afe/bc08ca1165484ebcbadb3ba80f365fb2/FLAGb2b7595be [2024-11-27 20:23:50,445 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:23:50,446 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/sv-benchmarks/c/nla-digbench/cohencu-ll.c [2024-11-27 20:23:50,453 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/data/85bfb1afe/bc08ca1165484ebcbadb3ba80f365fb2/FLAGb2b7595be [2024-11-27 20:23:50,469 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/data/85bfb1afe/bc08ca1165484ebcbadb3ba80f365fb2 [2024-11-27 20:23:50,472 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:23:50,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:23:50,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:23:50,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:23:50,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:23:50,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc4795a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50, skipping insertion in model container [2024-11-27 20:23:50,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,498 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:23:50,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:23:50,667 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:23:50,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:23:50,702 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:23:50,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50 WrapperNode [2024-11-27 20:23:50,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:23:50,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:23:50,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:23:50,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:23:50,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,746 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 187 [2024-11-27 20:23:50,746 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:23:50,747 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:23:50,747 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:23:50,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:23:50,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,770 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 20:23:50,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,779 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,787 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,788 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,791 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:23:50,792 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:23:50,792 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:23:50,792 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:23:50,793 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (1/1) ... [2024-11-27 20:23:50,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:23:50,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:50,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:23:50,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:23:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:23:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:23:50,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:23:50,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:23:50,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-27 20:23:50,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-27 20:23:50,914 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:23:50,916 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:23:51,871 INFO L? ?]: Removed 237 outVars from TransFormulas that were not future-live. [2024-11-27 20:23:51,872 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:23:51,890 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:23:51,890 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:23:51,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:23:51 BoogieIcfgContainer [2024-11-27 20:23:51,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:23:51,893 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:23:51,893 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:23:51,898 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:23:51,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:23:50" (1/3) ... [2024-11-27 20:23:51,899 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8e68ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:23:51, skipping insertion in model container [2024-11-27 20:23:51,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:23:50" (2/3) ... [2024-11-27 20:23:51,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b8e68ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:23:51, skipping insertion in model container [2024-11-27 20:23:51,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:23:51" (3/3) ... [2024-11-27 20:23:51,901 INFO L128 eAbstractionObserver]: Analyzing ICFG cohencu-ll.c [2024-11-27 20:23:51,935 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:23:51,937 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cohencu-ll.c that has 2 procedures, 300 locations, 1 initial locations, 1 loop locations, and 138 error locations. [2024-11-27 20:23:51,995 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:23:52,006 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;@70cb9447, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:23:52,006 INFO L334 AbstractCegarLoop]: Starting to check reachability of 138 error locations. [2024-11-27 20:23:52,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 300 states, 149 states have (on average 1.9530201342281879) internal successors, (291), 287 states have internal predecessors, (291), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 20:23:52,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-27 20:23:52,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:52,016 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-27 20:23:52,017 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:23:52,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:52,022 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2024-11-27 20:23:52,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:52,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729150107] [2024-11-27 20:23:52,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:52,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:52,187 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 20:23:52,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:52,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729150107] [2024-11-27 20:23:52,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729150107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:52,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:52,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:23:52,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701193778] [2024-11-27 20:23:52,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:52,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:23:52,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:52,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:23:52,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:23:52,217 INFO L87 Difference]: Start difference. First operand has 300 states, 149 states have (on average 1.9530201342281879) internal successors, (291), 287 states have internal predecessors, (291), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:52,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:52,457 INFO L93 Difference]: Finished difference Result 841 states and 937 transitions. [2024-11-27 20:23:52,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:23:52,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-27 20:23:52,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:52,477 INFO L225 Difference]: With dead ends: 841 [2024-11-27 20:23:52,478 INFO L226 Difference]: Without dead ends: 534 [2024-11-27 20:23:52,483 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 20:23:52,490 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 239 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:52,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 530 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:23:52,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-27 20:23:52,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 344. [2024-11-27 20:23:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 197 states have (on average 1.8071065989847717) internal successors, (356), 327 states have internal predecessors, (356), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-27 20:23:52,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 386 transitions. [2024-11-27 20:23:52,588 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 386 transitions. Word has length 3 [2024-11-27 20:23:52,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:52,589 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 386 transitions. [2024-11-27 20:23:52,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:23:52,589 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 386 transitions. [2024-11-27 20:23:52,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-27 20:23:52,591 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:52,591 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:52,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:23:52,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:23:52,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:52,592 INFO L85 PathProgramCache]: Analyzing trace with hash 317817442, now seen corresponding path program 1 times [2024-11-27 20:23:52,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:52,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954076561] [2024-11-27 20:23:52,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:52,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:23:52,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2029955526] [2024-11-27 20:23:52,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:52,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:52,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:52,657 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:52,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:23:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:52,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:23:52,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:52,954 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:23:52,954 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:23:52,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:52,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954076561] [2024-11-27 20:23:52,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:23:52,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029955526] [2024-11-27 20:23:52,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029955526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:52,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:52,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:23:52,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143381827] [2024-11-27 20:23:52,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:52,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:23:52,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:52,959 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:23:52,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:23:52,960 INFO L87 Difference]: Start difference. First operand 344 states and 386 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:53,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:53,680 INFO L93 Difference]: Finished difference Result 504 states and 561 transitions. [2024-11-27 20:23:53,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:23:53,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2024-11-27 20:23:53,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:53,684 INFO L225 Difference]: With dead ends: 504 [2024-11-27 20:23:53,684 INFO L226 Difference]: Without dead ends: 449 [2024-11-27 20:23:53,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 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 20:23:53,686 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 134 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:53,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 264 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:23:53,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-27 20:23:53,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 429. [2024-11-27 20:23:53,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 277 states have (on average 1.6570397111913358) internal successors, (459), 407 states have internal predecessors, (459), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:23:53,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 499 transitions. [2024-11-27 20:23:53,731 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 499 transitions. Word has length 36 [2024-11-27 20:23:53,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:53,736 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 499 transitions. [2024-11-27 20:23:53,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:53,736 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 499 transitions. [2024-11-27 20:23:53,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-27 20:23:53,737 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:53,737 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:53,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:23:53,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:53,938 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:23:53,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:53,939 INFO L85 PathProgramCache]: Analyzing trace with hash 479886404, now seen corresponding path program 1 times [2024-11-27 20:23:53,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:53,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947365356] [2024-11-27 20:23:53,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:53,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:53,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:23:54,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:54,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947365356] [2024-11-27 20:23:54,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947365356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:54,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:54,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:23:54,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809161068] [2024-11-27 20:23:54,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:54,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:23:54,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:54,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:23:54,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:23:54,126 INFO L87 Difference]: Start difference. First operand 429 states and 499 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:54,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:54,505 INFO L93 Difference]: Finished difference Result 462 states and 506 transitions. [2024-11-27 20:23:54,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:23:54,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-11-27 20:23:54,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:54,508 INFO L225 Difference]: With dead ends: 462 [2024-11-27 20:23:54,508 INFO L226 Difference]: Without dead ends: 439 [2024-11-27 20:23:54,509 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 20:23:54,510 INFO L435 NwaCegarLoop]: 223 mSDtfsCounter, 120 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:54,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 422 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:23:54,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-27 20:23:54,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 429. [2024-11-27 20:23:54,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 277 states have (on average 1.5740072202166064) internal successors, (436), 407 states have internal predecessors, (436), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:23:54,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 476 transitions. [2024-11-27 20:23:54,528 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 476 transitions. Word has length 38 [2024-11-27 20:23:54,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:54,528 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 476 transitions. [2024-11-27 20:23:54,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:54,528 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 476 transitions. [2024-11-27 20:23:54,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-27 20:23:54,529 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:54,529 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:54,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:23:54,530 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:23:54,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:54,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1609336358, now seen corresponding path program 1 times [2024-11-27 20:23:54,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:54,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896698102] [2024-11-27 20:23:54,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:54,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:54,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:23:54,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:54,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896698102] [2024-11-27 20:23:54,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896698102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:54,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:54,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:23:54,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113409059] [2024-11-27 20:23:54,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:54,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:23:54,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:54,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:23:54,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:23:54,682 INFO L87 Difference]: Start difference. First operand 429 states and 476 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:55,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:55,507 INFO L93 Difference]: Finished difference Result 441 states and 483 transitions. [2024-11-27 20:23:55,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:23:55,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2024-11-27 20:23:55,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:55,510 INFO L225 Difference]: With dead ends: 441 [2024-11-27 20:23:55,510 INFO L226 Difference]: Without dead ends: 439 [2024-11-27 20:23:55,511 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 20:23:55,512 INFO L435 NwaCegarLoop]: 165 mSDtfsCounter, 136 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:55,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 442 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:23:55,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-27 20:23:55,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 429. [2024-11-27 20:23:55,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 277 states have (on average 1.5667870036101084) internal successors, (434), 407 states have internal predecessors, (434), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:23:55,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 474 transitions. [2024-11-27 20:23:55,531 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 474 transitions. Word has length 40 [2024-11-27 20:23:55,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:55,531 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 474 transitions. [2024-11-27 20:23:55,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:55,531 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 474 transitions. [2024-11-27 20:23:55,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-27 20:23:55,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:55,534 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:55,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:23:55,534 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:23:55,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:55,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1650180363, now seen corresponding path program 1 times [2024-11-27 20:23:55,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:55,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517849650] [2024-11-27 20:23:55,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:55,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:55,654 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:23:55,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:55,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517849650] [2024-11-27 20:23:55,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517849650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:55,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:55,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:23:55,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216177451] [2024-11-27 20:23:55,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:55,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:23:55,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:55,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:23:55,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:23:55,656 INFO L87 Difference]: Start difference. First operand 429 states and 474 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:57,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:57,603 INFO L93 Difference]: Finished difference Result 441 states and 481 transitions. [2024-11-27 20:23:57,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:23:57,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2024-11-27 20:23:57,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:57,610 INFO L225 Difference]: With dead ends: 441 [2024-11-27 20:23:57,610 INFO L226 Difference]: Without dead ends: 439 [2024-11-27 20:23:57,610 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 20:23:57,611 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 136 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:57,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 444 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 20:23:57,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-27 20:23:57,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 429. [2024-11-27 20:23:57,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 277 states have (on average 1.55956678700361) internal successors, (432), 407 states have internal predecessors, (432), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:23:57,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 472 transitions. [2024-11-27 20:23:57,660 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 472 transitions. Word has length 41 [2024-11-27 20:23:57,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:57,661 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 472 transitions. [2024-11-27 20:23:57,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:57,662 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 472 transitions. [2024-11-27 20:23:57,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-27 20:23:57,662 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:57,663 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:57,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:23:57,665 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:23:57,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:57,666 INFO L85 PathProgramCache]: Analyzing trace with hash -327431702, now seen corresponding path program 1 times [2024-11-27 20:23:57,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:57,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729065478] [2024-11-27 20:23:57,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:57,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:23:57,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543562955] [2024-11-27 20:23:57,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:57,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:23:57,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:23:57,706 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:23:57,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:23:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:57,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:23:57,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:23:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:23:58,022 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:23:58,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:58,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729065478] [2024-11-27 20:23:58,023 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:23:58,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543562955] [2024-11-27 20:23:58,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543562955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:58,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:58,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:23:58,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612474433] [2024-11-27 20:23:58,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:58,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:23:58,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:58,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:23:58,024 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:23:58,024 INFO L87 Difference]: Start difference. First operand 429 states and 472 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:58,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:58,559 INFO L93 Difference]: Finished difference Result 446 states and 479 transitions. [2024-11-27 20:23:58,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:23:58,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2024-11-27 20:23:58,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:58,561 INFO L225 Difference]: With dead ends: 446 [2024-11-27 20:23:58,561 INFO L226 Difference]: Without dead ends: 437 [2024-11-27 20:23:58,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 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 20:23:58,562 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 112 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:58,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 254 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:23:58,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-27 20:23:58,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 432. [2024-11-27 20:23:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 280 states have (on average 1.5321428571428573) internal successors, (429), 410 states have internal predecessors, (429), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:23:58,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 469 transitions. [2024-11-27 20:23:58,587 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 469 transitions. Word has length 44 [2024-11-27 20:23:58,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:58,588 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 469 transitions. [2024-11-27 20:23:58,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 469 transitions. [2024-11-27 20:23:58,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-27 20:23:58,592 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:58,592 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:58,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 20:23:58,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-27 20:23:58,794 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:23:58,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:58,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1560448071, now seen corresponding path program 1 times [2024-11-27 20:23:58,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:58,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909119424] [2024-11-27 20:23:58,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:58,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:58,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:23:58,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:58,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909119424] [2024-11-27 20:23:58,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909119424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:58,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:58,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:23:58,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247414617] [2024-11-27 20:23:58,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:58,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:23:58,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:58,965 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:23:58,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:23:58,965 INFO L87 Difference]: Start difference. First operand 432 states and 469 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:59,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:23:59,596 INFO L93 Difference]: Finished difference Result 445 states and 470 transitions. [2024-11-27 20:23:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:23:59,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-11-27 20:23:59,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:23:59,599 INFO L225 Difference]: With dead ends: 445 [2024-11-27 20:23:59,599 INFO L226 Difference]: Without dead ends: 439 [2024-11-27 20:23:59,599 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 20:23:59,600 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 132 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:23:59,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 380 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:23:59,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-27 20:23:59,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 432. [2024-11-27 20:23:59,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 280 states have (on average 1.5107142857142857) internal successors, (423), 410 states have internal predecessors, (423), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-27 20:23:59,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 463 transitions. [2024-11-27 20:23:59,616 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 463 transitions. Word has length 45 [2024-11-27 20:23:59,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:23:59,617 INFO L471 AbstractCegarLoop]: Abstraction has 432 states and 463 transitions. [2024-11-27 20:23:59,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:23:59,617 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 463 transitions. [2024-11-27 20:23:59,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-27 20:23:59,618 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:23:59,618 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:23:59,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:23:59,618 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:23:59,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:23:59,619 INFO L85 PathProgramCache]: Analyzing trace with hash 996829309, now seen corresponding path program 1 times [2024-11-27 20:23:59,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:23:59,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588473945] [2024-11-27 20:23:59,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:23:59,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:23:59,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:23:59,744 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-27 20:23:59,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:23:59,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588473945] [2024-11-27 20:23:59,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588473945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:23:59,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:23:59,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:23:59,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546853971] [2024-11-27 20:23:59,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:23:59,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:23:59,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:23:59,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:23:59,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:23:59,747 INFO L87 Difference]: Start difference. First operand 432 states and 463 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:24:00,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:00,248 INFO L93 Difference]: Finished difference Result 443 states and 464 transitions. [2024-11-27 20:24:00,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:00,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2024-11-27 20:24:00,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:00,251 INFO L225 Difference]: With dead ends: 443 [2024-11-27 20:24:00,251 INFO L226 Difference]: Without dead ends: 370 [2024-11-27 20:24:00,251 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 20:24:00,252 INFO L435 NwaCegarLoop]: 188 mSDtfsCounter, 226 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:00,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 266 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:24:00,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2024-11-27 20:24:00,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 366. [2024-11-27 20:24:00,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 217 states have (on average 1.631336405529954) internal successors, (354), 347 states have internal predecessors, (354), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:24:00,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 388 transitions. [2024-11-27 20:24:00,269 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 388 transitions. Word has length 49 [2024-11-27 20:24:00,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:00,269 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 388 transitions. [2024-11-27 20:24:00,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-27 20:24:00,269 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 388 transitions. [2024-11-27 20:24:00,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-27 20:24:00,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:00,272 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:00,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:24:00,272 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:00,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:00,272 INFO L85 PathProgramCache]: Analyzing trace with hash -684637313, now seen corresponding path program 1 times [2024-11-27 20:24:00,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:00,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752456790] [2024-11-27 20:24:00,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:00,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:00,424 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:24:00,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:00,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752456790] [2024-11-27 20:24:00,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752456790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:00,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:00,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:00,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364528333] [2024-11-27 20:24:00,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:00,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:00,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:00,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:00,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:00,427 INFO L87 Difference]: Start difference. First operand 366 states and 388 transitions. Second operand has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:24:00,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:00,774 INFO L93 Difference]: Finished difference Result 366 states and 388 transitions. [2024-11-27 20:24:00,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:00,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 81 [2024-11-27 20:24:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:00,776 INFO L225 Difference]: With dead ends: 366 [2024-11-27 20:24:00,776 INFO L226 Difference]: Without dead ends: 359 [2024-11-27 20:24:00,777 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 20:24:00,777 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 138 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:00,777 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 152 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:24:00,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-27 20:24:00,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2024-11-27 20:24:00,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 217 states have (on average 1.599078341013825) internal successors, (347), 340 states have internal predecessors, (347), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:24:00,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 381 transitions. [2024-11-27 20:24:00,790 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 381 transitions. Word has length 81 [2024-11-27 20:24:00,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:00,791 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 381 transitions. [2024-11-27 20:24:00,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 29.5) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:24:00,791 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 381 transitions. [2024-11-27 20:24:00,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-27 20:24:00,792 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:00,792 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:00,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:24:00,793 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:00,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:00,793 INFO L85 PathProgramCache]: Analyzing trace with hash 251079935, now seen corresponding path program 1 times [2024-11-27 20:24:00,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:00,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893862346] [2024-11-27 20:24:00,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:00,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:24:00,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:00,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893862346] [2024-11-27 20:24:00,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893862346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:00,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:00,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:00,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989725352] [2024-11-27 20:24:00,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:00,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:00,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:00,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:00,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:00,871 INFO L87 Difference]: Start difference. First operand 359 states and 381 transitions. Second operand has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:24:01,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:01,184 INFO L93 Difference]: Finished difference Result 366 states and 384 transitions. [2024-11-27 20:24:01,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:01,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 82 [2024-11-27 20:24:01,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:01,187 INFO L225 Difference]: With dead ends: 366 [2024-11-27 20:24:01,187 INFO L226 Difference]: Without dead ends: 365 [2024-11-27 20:24:01,187 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 20:24:01,188 INFO L435 NwaCegarLoop]: 252 mSDtfsCounter, 24 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:01,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 389 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:24:01,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-27 20:24:01,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 361. [2024-11-27 20:24:01,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 219 states have (on average 1.5936073059360731) internal successors, (349), 342 states have internal predecessors, (349), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:24:01,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 383 transitions. [2024-11-27 20:24:01,201 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 383 transitions. Word has length 82 [2024-11-27 20:24:01,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:01,202 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 383 transitions. [2024-11-27 20:24:01,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:24:01,202 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 383 transitions. [2024-11-27 20:24:01,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-27 20:24:01,203 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:01,203 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:01,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:24:01,204 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:01,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:01,204 INFO L85 PathProgramCache]: Analyzing trace with hash -806456565, now seen corresponding path program 1 times [2024-11-27 20:24:01,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:01,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008167211] [2024-11-27 20:24:01,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:01,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:01,302 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:24:01,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:01,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008167211] [2024-11-27 20:24:01,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008167211] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:01,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710857183] [2024-11-27 20:24:01,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:01,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:01,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:01,305 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:01,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:24:01,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:01,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:24:01,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:01,485 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:24:01,485 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:01,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710857183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:01,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:01,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-27 20:24:01,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887088518] [2024-11-27 20:24:01,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:01,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:01,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:01,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:01,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:01,490 INFO L87 Difference]: Start difference. First operand 361 states and 383 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:24:01,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:01,629 INFO L93 Difference]: Finished difference Result 367 states and 383 transitions. [2024-11-27 20:24:01,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:01,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 83 [2024-11-27 20:24:01,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:01,632 INFO L225 Difference]: With dead ends: 367 [2024-11-27 20:24:01,633 INFO L226 Difference]: Without dead ends: 359 [2024-11-27 20:24:01,633 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:01,634 INFO L435 NwaCegarLoop]: 305 mSDtfsCounter, 424 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:01,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 375 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:24:01,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-27 20:24:01,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 353. [2024-11-27 20:24:01,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 219 states have (on average 1.5570776255707763) internal successors, (341), 334 states have internal predecessors, (341), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:24:01,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 375 transitions. [2024-11-27 20:24:01,651 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 375 transitions. Word has length 83 [2024-11-27 20:24:01,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:01,651 INFO L471 AbstractCegarLoop]: Abstraction has 353 states and 375 transitions. [2024-11-27 20:24:01,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-27 20:24:01,652 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 375 transitions. [2024-11-27 20:24:01,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 20:24:01,652 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:01,653 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:01,661 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:24:01,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-27 20:24:01,858 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:01,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:01,859 INFO L85 PathProgramCache]: Analyzing trace with hash 979133286, now seen corresponding path program 1 times [2024-11-27 20:24:01,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:01,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908105354] [2024-11-27 20:24:01,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:01,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:01,985 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:24:01,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:01,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908105354] [2024-11-27 20:24:01,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908105354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:01,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:01,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:01,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222880544] [2024-11-27 20:24:01,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:01,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:01,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:01,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:01,989 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:01,989 INFO L87 Difference]: Start difference. First operand 353 states and 375 transitions. Second operand has 3 states, 2 states have (on average 28.5) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:24:02,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:02,126 INFO L93 Difference]: Finished difference Result 353 states and 375 transitions. [2024-11-27 20:24:02,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:02,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.5) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 84 [2024-11-27 20:24:02,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:02,128 INFO L225 Difference]: With dead ends: 353 [2024-11-27 20:24:02,128 INFO L226 Difference]: Without dead ends: 351 [2024-11-27 20:24:02,129 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 20:24:02,129 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 184 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:02,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 252 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 20:24:02,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-27 20:24:02,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2024-11-27 20:24:02,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 219 states have (on average 1.538812785388128) internal successors, (337), 332 states have internal predecessors, (337), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-27 20:24:02,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 371 transitions. [2024-11-27 20:24:02,147 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 371 transitions. Word has length 84 [2024-11-27 20:24:02,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:02,147 INFO L471 AbstractCegarLoop]: Abstraction has 351 states and 371 transitions. [2024-11-27 20:24:02,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.5) internal successors, (57), 3 states have internal predecessors, (57), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-27 20:24:02,148 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 371 transitions. [2024-11-27 20:24:02,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-27 20:24:02,150 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:02,150 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:02,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:24:02,150 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:02,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:02,151 INFO L85 PathProgramCache]: Analyzing trace with hash 769650305, now seen corresponding path program 1 times [2024-11-27 20:24:02,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:02,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142667617] [2024-11-27 20:24:02,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:02,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:24:02,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:02,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142667617] [2024-11-27 20:24:02,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142667617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:02,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343676377] [2024-11-27 20:24:02,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:02,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:02,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:02,259 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:02,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 20:24:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:02,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 20:24:02,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:02,455 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:24:02,455 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:02,614 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-27 20:24:02,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343676377] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:02,614 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:02,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-27 20:24:02,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498010125] [2024-11-27 20:24:02,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:02,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:24:02,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:02,618 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:24:02,618 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:24:02,619 INFO L87 Difference]: Start difference. First operand 351 states and 371 transitions. Second operand has 7 states, 6 states have (on average 28.333333333333332) internal successors, (170), 7 states have internal predecessors, (170), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:24:02,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:02,858 INFO L93 Difference]: Finished difference Result 612 states and 650 transitions. [2024-11-27 20:24:02,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:24:02,859 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.333333333333332) internal successors, (170), 7 states have internal predecessors, (170), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 84 [2024-11-27 20:24:02,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:02,862 INFO L225 Difference]: With dead ends: 612 [2024-11-27 20:24:02,862 INFO L226 Difference]: Without dead ends: 604 [2024-11-27 20:24:02,863 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:24:02,863 INFO L435 NwaCegarLoop]: 240 mSDtfsCounter, 656 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:02,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 919 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:24:02,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-27 20:24:02,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 409. [2024-11-27 20:24:02,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 278 states have (on average 1.5287769784172662) internal successors, (425), 385 states have internal predecessors, (425), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:24:02,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 469 transitions. [2024-11-27 20:24:02,884 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 469 transitions. Word has length 84 [2024-11-27 20:24:02,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:02,884 INFO L471 AbstractCegarLoop]: Abstraction has 409 states and 469 transitions. [2024-11-27 20:24:02,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.333333333333332) internal successors, (170), 7 states have internal predecessors, (170), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-27 20:24:02,885 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 469 transitions. [2024-11-27 20:24:02,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-27 20:24:02,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:02,887 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:02,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 20:24:03,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:03,092 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:03,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:03,092 INFO L85 PathProgramCache]: Analyzing trace with hash 288360968, now seen corresponding path program 1 times [2024-11-27 20:24:03,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:03,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457752422] [2024-11-27 20:24:03,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:03,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:03,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:03,216 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:24:03,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:03,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457752422] [2024-11-27 20:24:03,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457752422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:03,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:03,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:24:03,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019378787] [2024-11-27 20:24:03,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:03,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:24:03,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:03,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:24:03,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:03,217 INFO L87 Difference]: Start difference. First operand 409 states and 469 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 20:24:03,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:03,412 INFO L93 Difference]: Finished difference Result 413 states and 469 transitions. [2024-11-27 20:24:03,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:03,412 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 85 [2024-11-27 20:24:03,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:03,415 INFO L225 Difference]: With dead ends: 413 [2024-11-27 20:24:03,416 INFO L226 Difference]: Without dead ends: 409 [2024-11-27 20:24:03,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:03,418 INFO L435 NwaCegarLoop]: 233 mSDtfsCounter, 48 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 683 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:03,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 683 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:24:03,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-27 20:24:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 407. [2024-11-27 20:24:03,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 276 states have (on average 1.5253623188405796) internal successors, (421), 383 states have internal predecessors, (421), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:24:03,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 465 transitions. [2024-11-27 20:24:03,441 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 465 transitions. Word has length 85 [2024-11-27 20:24:03,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:03,442 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 465 transitions. [2024-11-27 20:24:03,442 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-27 20:24:03,442 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 465 transitions. [2024-11-27 20:24:03,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-27 20:24:03,444 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:03,444 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:03,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:24:03,444 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:03,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:03,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1251777492, now seen corresponding path program 1 times [2024-11-27 20:24:03,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:03,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311935196] [2024-11-27 20:24:03,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:03,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:03,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1335464016] [2024-11-27 20:24:03,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:03,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:03,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:03,480 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:03,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 20:24:03,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:03,541 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:24:03,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:03,668 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:24:03,669 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-27 20:24:03,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:03,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311935196] [2024-11-27 20:24:03,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:03,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335464016] [2024-11-27 20:24:03,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335464016] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:03,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:24:03,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-27 20:24:03,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080483460] [2024-11-27 20:24:03,914 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:03,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:24:03,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:03,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:24:03,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:03,916 INFO L87 Difference]: Start difference. First operand 407 states and 465 transitions. Second operand has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 20:24:04,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:04,176 INFO L93 Difference]: Finished difference Result 610 states and 642 transitions. [2024-11-27 20:24:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:24:04,177 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 95 [2024-11-27 20:24:04,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:04,180 INFO L225 Difference]: With dead ends: 610 [2024-11-27 20:24:04,180 INFO L226 Difference]: Without dead ends: 605 [2024-11-27 20:24:04,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:24:04,183 INFO L435 NwaCegarLoop]: 297 mSDtfsCounter, 892 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:04,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 780 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:24:04,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2024-11-27 20:24:04,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 412. [2024-11-27 20:24:04,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 284 states have (on average 1.482394366197183) internal successors, (421), 387 states have internal predecessors, (421), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:24:04,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 467 transitions. [2024-11-27 20:24:04,212 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 467 transitions. Word has length 95 [2024-11-27 20:24:04,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:04,212 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 467 transitions. [2024-11-27 20:24:04,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.4) internal successors, (132), 6 states have internal predecessors, (132), 4 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-27 20:24:04,212 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 467 transitions. [2024-11-27 20:24:04,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-27 20:24:04,214 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:04,215 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:04,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:04,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-27 20:24:04,416 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:04,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:04,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1871165972, now seen corresponding path program 1 times [2024-11-27 20:24:04,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:04,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428052750] [2024-11-27 20:24:04,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:04,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:04,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777474743] [2024-11-27 20:24:04,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:04,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:04,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:04,450 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:04,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 20:24:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:04,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:24:04,517 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:04,690 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 20:24:04,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:04,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:04,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428052750] [2024-11-27 20:24:04,691 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:04,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777474743] [2024-11-27 20:24:04,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777474743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:04,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:04,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:04,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062468427] [2024-11-27 20:24:04,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:04,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:04,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:04,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:04,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:04,693 INFO L87 Difference]: Start difference. First operand 412 states and 467 transitions. Second operand has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:24:05,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:05,202 INFO L93 Difference]: Finished difference Result 413 states and 467 transitions. [2024-11-27 20:24:05,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:05,202 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 101 [2024-11-27 20:24:05,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:05,217 INFO L225 Difference]: With dead ends: 413 [2024-11-27 20:24:05,217 INFO L226 Difference]: Without dead ends: 412 [2024-11-27 20:24:05,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 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 20:24:05,217 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 60 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:05,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 450 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:24:05,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-27 20:24:05,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2024-11-27 20:24:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 284 states have (on average 1.4788732394366197) internal successors, (420), 387 states have internal predecessors, (420), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:24:05,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 466 transitions. [2024-11-27 20:24:05,237 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 466 transitions. Word has length 101 [2024-11-27 20:24:05,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:05,238 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 466 transitions. [2024-11-27 20:24:05,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.0) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:24:05,238 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 466 transitions. [2024-11-27 20:24:05,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-27 20:24:05,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:05,240 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:05,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:05,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 20:24:05,440 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:05,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash -2123396813, now seen corresponding path program 1 times [2024-11-27 20:24:05,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:05,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197030278] [2024-11-27 20:24:05,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:05,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:05,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1242281620] [2024-11-27 20:24:05,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:05,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:05,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:05,468 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:05,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 20:24:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:05,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:24:05,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:05,829 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-27 20:24:05,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:05,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:05,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197030278] [2024-11-27 20:24:05,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:05,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242281620] [2024-11-27 20:24:05,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242281620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:05,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:05,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:24:05,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738155363] [2024-11-27 20:24:05,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:05,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:24:05,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:05,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:24:05,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:24:05,831 INFO L87 Difference]: Start difference. First operand 412 states and 466 transitions. Second operand has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:24:06,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:06,380 INFO L93 Difference]: Finished difference Result 413 states and 466 transitions. [2024-11-27 20:24:06,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:24:06,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 102 [2024-11-27 20:24:06,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:06,383 INFO L225 Difference]: With dead ends: 413 [2024-11-27 20:24:06,383 INFO L226 Difference]: Without dead ends: 392 [2024-11-27 20:24:06,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:06,384 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 20 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:06,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 378 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-27 20:24:06,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2024-11-27 20:24:06,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 392. [2024-11-27 20:24:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 266 states have (on average 1.5075187969924813) internal successors, (401), 369 states have internal predecessors, (401), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:24:06,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 443 transitions. [2024-11-27 20:24:06,401 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 443 transitions. Word has length 102 [2024-11-27 20:24:06,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:06,402 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 443 transitions. [2024-11-27 20:24:06,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 23.333333333333332) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:24:06,402 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 443 transitions. [2024-11-27 20:24:06,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-27 20:24:06,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:06,403 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:06,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 20:24:06,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-27 20:24:06,604 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:06,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:06,605 INFO L85 PathProgramCache]: Analyzing trace with hash -595321761, now seen corresponding path program 1 times [2024-11-27 20:24:06,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:06,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015538137] [2024-11-27 20:24:06,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:06,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:06,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [210004742] [2024-11-27 20:24:06,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:06,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:06,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:06,638 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:06,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 20:24:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:06,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:24:06,704 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:07,037 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:24:07,038 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:24:07,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:07,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015538137] [2024-11-27 20:24:07,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:07,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210004742] [2024-11-27 20:24:07,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210004742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:07,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:07,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:24:07,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050177673] [2024-11-27 20:24:07,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:07,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:24:07,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:07,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:24:07,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:24:07,040 INFO L87 Difference]: Start difference. First operand 392 states and 443 transitions. Second operand has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 20:24:07,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:07,816 INFO L93 Difference]: Finished difference Result 392 states and 443 transitions. [2024-11-27 20:24:07,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:24:07,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 116 [2024-11-27 20:24:07,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:07,818 INFO L225 Difference]: With dead ends: 392 [2024-11-27 20:24:07,819 INFO L226 Difference]: Without dead ends: 382 [2024-11-27 20:24:07,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:24:07,820 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 135 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:07,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 277 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:24:07,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-11-27 20:24:07,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2024-11-27 20:24:07,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 266 states have (on average 1.4548872180451127) internal successors, (387), 359 states have internal predecessors, (387), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:24:07,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 429 transitions. [2024-11-27 20:24:07,838 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 429 transitions. Word has length 116 [2024-11-27 20:24:07,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:07,839 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 429 transitions. [2024-11-27 20:24:07,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.75) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 20:24:07,839 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 429 transitions. [2024-11-27 20:24:07,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-27 20:24:07,840 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:07,840 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:07,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 20:24:08,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-27 20:24:08,045 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:08,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:08,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1275105324, now seen corresponding path program 1 times [2024-11-27 20:24:08,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:08,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511231571] [2024-11-27 20:24:08,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:08,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:08,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141431066] [2024-11-27 20:24:08,075 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:08,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:08,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:08,077 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:08,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 20:24:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:08,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:24:08,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:08,484 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:24:08,484 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:13,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:13,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511231571] [2024-11-27 20:24:13,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:13,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141431066] [2024-11-27 20:24:13,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141431066] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:13,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:13,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:24:13,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062860983] [2024-11-27 20:24:13,225 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:13,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:24:13,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:13,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:24:13,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=31, Unknown=1, NotChecked=0, Total=56 [2024-11-27 20:24:13,226 INFO L87 Difference]: Start difference. First operand 382 states and 429 transitions. Second operand has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 20:24:14,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:14,143 INFO L93 Difference]: Finished difference Result 508 states and 588 transitions. [2024-11-27 20:24:14,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:24:14,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 117 [2024-11-27 20:24:14,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:14,146 INFO L225 Difference]: With dead ends: 508 [2024-11-27 20:24:14,146 INFO L226 Difference]: Without dead ends: 485 [2024-11-27 20:24:14,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=24, Invalid=31, Unknown=1, NotChecked=0, Total=56 [2024-11-27 20:24:14,147 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 131 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:14,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 399 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:24:14,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-27 20:24:14,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 467. [2024-11-27 20:24:14,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 346 states have (on average 1.4624277456647399) internal successors, (506), 439 states have internal predecessors, (506), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 20:24:14,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 558 transitions. [2024-11-27 20:24:14,200 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 558 transitions. Word has length 117 [2024-11-27 20:24:14,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:14,201 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 558 transitions. [2024-11-27 20:24:14,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-27 20:24:14,201 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 558 transitions. [2024-11-27 20:24:14,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:24:14,206 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:14,206 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:14,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 20:24:14,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:14,407 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:14,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:14,408 INFO L85 PathProgramCache]: Analyzing trace with hash -873559295, now seen corresponding path program 1 times [2024-11-27 20:24:14,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:14,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203222779] [2024-11-27 20:24:14,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:14,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:14,554 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:24:14,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:14,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203222779] [2024-11-27 20:24:14,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203222779] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:14,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297515633] [2024-11-27 20:24:14,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:14,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:14,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:14,557 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:14,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 20:24:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:14,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:24:14,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:24:14,890 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:15,092 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:24:15,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297515633] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:15,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:15,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-11-27 20:24:15,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501520973] [2024-11-27 20:24:15,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:15,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:24:15,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:15,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:24:15,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:24:15,095 INFO L87 Difference]: Start difference. First operand 467 states and 558 transitions. Second operand has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:24:16,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:16,042 INFO L93 Difference]: Finished difference Result 492 states and 565 transitions. [2024-11-27 20:24:16,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:24:16,043 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 118 [2024-11-27 20:24:16,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:16,045 INFO L225 Difference]: With dead ends: 492 [2024-11-27 20:24:16,045 INFO L226 Difference]: Without dead ends: 487 [2024-11-27 20:24:16,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:24:16,046 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 470 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 482 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:16,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [482 Valid, 562 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:24:16,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-27 20:24:16,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 463. [2024-11-27 20:24:16,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 346 states have (on average 1.4364161849710984) internal successors, (497), 435 states have internal predecessors, (497), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 20:24:16,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 549 transitions. [2024-11-27 20:24:16,066 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 549 transitions. Word has length 118 [2024-11-27 20:24:16,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:16,066 INFO L471 AbstractCegarLoop]: Abstraction has 463 states and 549 transitions. [2024-11-27 20:24:16,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.285714285714285) internal successors, (212), 8 states have internal predecessors, (212), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:24:16,067 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 549 transitions. [2024-11-27 20:24:16,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-27 20:24:16,068 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:16,068 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:16,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 20:24:16,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-11-27 20:24:16,268 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:16,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:16,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1310534282, now seen corresponding path program 1 times [2024-11-27 20:24:16,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:16,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138994044] [2024-11-27 20:24:16,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:16,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:16,427 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:24:16,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:16,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138994044] [2024-11-27 20:24:16,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138994044] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:16,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658355096] [2024-11-27 20:24:16,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:16,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:16,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:16,429 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:16,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 20:24:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:16,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:24:16,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:16,738 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:24:16,739 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:16,984 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:24:16,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658355096] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:16,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:16,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-11-27 20:24:16,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359678897] [2024-11-27 20:24:16,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:16,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:24:16,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:16,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:24:16,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:24:16,988 INFO L87 Difference]: Start difference. First operand 463 states and 549 transitions. Second operand has 8 states, 7 states have (on average 30.571428571428573) internal successors, (214), 8 states have internal predecessors, (214), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:24:17,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:17,744 INFO L93 Difference]: Finished difference Result 488 states and 556 transitions. [2024-11-27 20:24:17,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:24:17,745 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 30.571428571428573) internal successors, (214), 8 states have internal predecessors, (214), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) Word has length 119 [2024-11-27 20:24:17,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:17,747 INFO L225 Difference]: With dead ends: 488 [2024-11-27 20:24:17,747 INFO L226 Difference]: Without dead ends: 483 [2024-11-27 20:24:17,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:24:17,748 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 334 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:17,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 561 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:24:17,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-27 20:24:17,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 459. [2024-11-27 20:24:17,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 346 states have (on average 1.4104046242774566) internal successors, (488), 431 states have internal predecessors, (488), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-27 20:24:17,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 540 transitions. [2024-11-27 20:24:17,769 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 540 transitions. Word has length 119 [2024-11-27 20:24:17,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:17,769 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 540 transitions. [2024-11-27 20:24:17,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 30.571428571428573) internal successors, (214), 8 states have internal predecessors, (214), 5 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 5 states have call predecessors, (21), 5 states have call successors, (21) [2024-11-27 20:24:17,770 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 540 transitions. [2024-11-27 20:24:17,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-27 20:24:17,771 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:17,771 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:17,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:17,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-27 20:24:17,972 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:17,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:17,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1971856989, now seen corresponding path program 1 times [2024-11-27 20:24:17,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:17,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261517925] [2024-11-27 20:24:17,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:17,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:18,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [546012204] [2024-11-27 20:24:18,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:18,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:18,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:18,005 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:18,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 20:24:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:18,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-27 20:24:18,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:18,663 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:24:18,664 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:19,029 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:24:19,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:19,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261517925] [2024-11-27 20:24:19,029 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:19,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546012204] [2024-11-27 20:24:19,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546012204] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:19,029 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:24:19,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 20:24:19,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085240084] [2024-11-27 20:24:19,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:19,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:24:19,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:19,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:24:19,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:24:19,033 INFO L87 Difference]: Start difference. First operand 459 states and 540 transitions. Second operand has 10 states, 9 states have (on average 18.0) internal successors, (162), 10 states have internal predecessors, (162), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:24:21,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:21,580 INFO L93 Difference]: Finished difference Result 507 states and 547 transitions. [2024-11-27 20:24:21,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:24:21,581 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.0) internal successors, (162), 10 states have internal predecessors, (162), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 120 [2024-11-27 20:24:21,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:21,583 INFO L225 Difference]: With dead ends: 507 [2024-11-27 20:24:21,583 INFO L226 Difference]: Without dead ends: 412 [2024-11-27 20:24:21,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:24:21,585 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 320 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 1574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:21,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 466 Invalid, 1574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 20:24:21,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-27 20:24:21,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 406. [2024-11-27 20:24:21,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 298 states have (on average 1.3456375838926173) internal successors, (401), 381 states have internal predecessors, (401), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:24:21,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 447 transitions. [2024-11-27 20:24:21,606 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 447 transitions. Word has length 120 [2024-11-27 20:24:21,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:21,607 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 447 transitions. [2024-11-27 20:24:21,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.0) internal successors, (162), 10 states have internal predecessors, (162), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:24:21,607 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 447 transitions. [2024-11-27 20:24:21,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-27 20:24:21,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:21,609 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-27 20:24:21,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 20:24:21,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 20:24:21,810 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr53ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:21,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:21,810 INFO L85 PathProgramCache]: Analyzing trace with hash 60675132, now seen corresponding path program 1 times [2024-11-27 20:24:21,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:21,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386272223] [2024-11-27 20:24:21,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:21,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:21,922 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2024-11-27 20:24:21,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:21,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386272223] [2024-11-27 20:24:21,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386272223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:24:21,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:24:21,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:24:21,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411855355] [2024-11-27 20:24:21,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:24:21,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:24:21,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:21,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:24:21,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:24:21,924 INFO L87 Difference]: Start difference. First operand 406 states and 447 transitions. Second operand has 3 states, 2 states have (on average 43.0) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:24:22,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:22,333 INFO L93 Difference]: Finished difference Result 406 states and 447 transitions. [2024-11-27 20:24:22,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:24:22,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 43.0) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 162 [2024-11-27 20:24:22,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:22,335 INFO L225 Difference]: With dead ends: 406 [2024-11-27 20:24:22,335 INFO L226 Difference]: Without dead ends: 403 [2024-11-27 20:24:22,336 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 20:24:22,336 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 126 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:22,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 152 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:24:22,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-27 20:24:22,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 403. [2024-11-27 20:24:22,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 298 states have (on average 1.332214765100671) internal successors, (397), 378 states have internal predecessors, (397), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:24:22,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 443 transitions. [2024-11-27 20:24:22,354 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 443 transitions. Word has length 162 [2024-11-27 20:24:22,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:22,355 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 443 transitions. [2024-11-27 20:24:22,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 43.0) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:24:22,355 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 443 transitions. [2024-11-27 20:24:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-27 20:24:22,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:22,359 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:22,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 20:24:22,359 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:22,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:22,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1590672811, now seen corresponding path program 1 times [2024-11-27 20:24:22,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:22,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952827806] [2024-11-27 20:24:22,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:22,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:22,498 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:24:22,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:22,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952827806] [2024-11-27 20:24:22,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952827806] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:22,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342413872] [2024-11-27 20:24:22,499 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:22,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:22,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:22,501 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:22,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 20:24:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:22,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:24:22,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:24:22,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:23,074 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:24:23,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342413872] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:23,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:23,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-27 20:24:23,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773072795] [2024-11-27 20:24:23,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:23,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:24:23,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:23,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:24:23,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-27 20:24:23,076 INFO L87 Difference]: Start difference. First operand 403 states and 443 transitions. Second operand has 9 states, 8 states have (on average 34.0) internal successors, (272), 9 states have internal predecessors, (272), 7 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2024-11-27 20:24:23,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:23,522 INFO L93 Difference]: Finished difference Result 426 states and 452 transitions. [2024-11-27 20:24:23,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:24:23,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 34.0) internal successors, (272), 9 states have internal predecessors, (272), 7 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) Word has length 165 [2024-11-27 20:24:23,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:23,525 INFO L225 Difference]: With dead ends: 426 [2024-11-27 20:24:23,525 INFO L226 Difference]: Without dead ends: 424 [2024-11-27 20:24:23,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2024-11-27 20:24:23,526 INFO L435 NwaCegarLoop]: 179 mSDtfsCounter, 594 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 594 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:23,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [594 Valid, 720 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 20:24:23,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-27 20:24:23,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 401. [2024-11-27 20:24:23,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 298 states have (on average 1.3187919463087248) internal successors, (393), 376 states have internal predecessors, (393), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:24:23,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 439 transitions. [2024-11-27 20:24:23,553 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 439 transitions. Word has length 165 [2024-11-27 20:24:23,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:23,554 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 439 transitions. [2024-11-27 20:24:23,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 34.0) internal successors, (272), 9 states have internal predecessors, (272), 7 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 7 states have call predecessors, (27), 7 states have call successors, (27) [2024-11-27 20:24:23,554 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 439 transitions. [2024-11-27 20:24:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-27 20:24:23,557 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:23,557 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:24:23,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 20:24:23,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-27 20:24:23,762 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:23,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:23,762 INFO L85 PathProgramCache]: Analyzing trace with hash 2066217061, now seen corresponding path program 1 times [2024-11-27 20:24:23,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:23,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34153244] [2024-11-27 20:24:23,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:23,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:23,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:23,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [832570830] [2024-11-27 20:24:23,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:23,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:23,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:23,796 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:23,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 20:24:23,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:23,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:24:23,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:24,526 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:24:24,526 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:25,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:25,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34153244] [2024-11-27 20:24:25,515 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:25,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832570830] [2024-11-27 20:24:25,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832570830] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:25,515 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:25,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:24:25,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101868643] [2024-11-27 20:24:25,516 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:25,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:24:25,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:25,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:24:25,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:24:25,517 INFO L87 Difference]: Start difference. First operand 401 states and 439 transitions. Second operand has 5 states, 4 states have (on average 28.5) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:24:26,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:26,252 INFO L93 Difference]: Finished difference Result 402 states and 439 transitions. [2024-11-27 20:24:26,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:24:26,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 28.5) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 166 [2024-11-27 20:24:26,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:26,255 INFO L225 Difference]: With dead ends: 402 [2024-11-27 20:24:26,255 INFO L226 Difference]: Without dead ends: 401 [2024-11-27 20:24:26,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:24:26,255 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 32 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:26,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 428 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:24:26,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-27 20:24:26,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-27 20:24:26,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 298 states have (on average 1.3154362416107384) internal successors, (392), 376 states have internal predecessors, (392), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:24:26,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 438 transitions. [2024-11-27 20:24:26,275 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 438 transitions. Word has length 166 [2024-11-27 20:24:26,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:26,276 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 438 transitions. [2024-11-27 20:24:26,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 28.5) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:24:26,276 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 438 transitions. [2024-11-27 20:24:26,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-27 20:24:26,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:26,278 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:26,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-27 20:24:26,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 20:24:26,483 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:26,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:26,483 INFO L85 PathProgramCache]: Analyzing trace with hash -371780371, now seen corresponding path program 1 times [2024-11-27 20:24:26,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:26,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949679022] [2024-11-27 20:24:26,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:26,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:26,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [804635142] [2024-11-27 20:24:26,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:26,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:26,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:26,513 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:26,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 20:24:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:26,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:24:26,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:27,189 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:24:27,189 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:27,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:27,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949679022] [2024-11-27 20:24:27,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:27,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804635142] [2024-11-27 20:24:27,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804635142] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:27,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:27,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 20:24:27,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923650436] [2024-11-27 20:24:27,369 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:27,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:24:27,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:27,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:24:27,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:24:27,370 INFO L87 Difference]: Start difference. First operand 401 states and 438 transitions. Second operand has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:24:28,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:28,084 INFO L93 Difference]: Finished difference Result 412 states and 438 transitions. [2024-11-27 20:24:28,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:24:28,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 167 [2024-11-27 20:24:28,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:28,086 INFO L225 Difference]: With dead ends: 412 [2024-11-27 20:24:28,086 INFO L226 Difference]: Without dead ends: 411 [2024-11-27 20:24:28,086 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:24:28,087 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 69 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:28,087 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 512 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 20:24:28,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-27 20:24:28,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 401. [2024-11-27 20:24:28,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 298 states have (on average 1.3120805369127517) internal successors, (391), 376 states have internal predecessors, (391), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:24:28,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 437 transitions. [2024-11-27 20:24:28,105 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 437 transitions. Word has length 167 [2024-11-27 20:24:28,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:28,106 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 437 transitions. [2024-11-27 20:24:28,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.0) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-27 20:24:28,106 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 437 transitions. [2024-11-27 20:24:28,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-27 20:24:28,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:28,107 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:28,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 20:24:28,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 20:24:28,312 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:28,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:28,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1011802729, now seen corresponding path program 1 times [2024-11-27 20:24:28,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:28,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956946145] [2024-11-27 20:24:28,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:28,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:28,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492718205] [2024-11-27 20:24:28,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:28,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:28,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:28,354 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:28,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 20:24:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:28,433 INFO L256 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:24:28,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:24:29,036 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:29,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:29,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956946145] [2024-11-27 20:24:29,159 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:29,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492718205] [2024-11-27 20:24:29,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492718205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:29,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:29,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 20:24:29,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136920929] [2024-11-27 20:24:29,159 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:29,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:24:29,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:29,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:24:29,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:24:29,160 INFO L87 Difference]: Start difference. First operand 401 states and 437 transitions. Second operand has 6 states, 5 states have (on average 23.6) internal successors, (118), 6 states have internal predecessors, (118), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:24:29,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:29,778 INFO L93 Difference]: Finished difference Result 405 states and 437 transitions. [2024-11-27 20:24:29,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:24:29,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.6) internal successors, (118), 6 states have internal predecessors, (118), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 170 [2024-11-27 20:24:29,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:29,780 INFO L225 Difference]: With dead ends: 405 [2024-11-27 20:24:29,780 INFO L226 Difference]: Without dead ends: 401 [2024-11-27 20:24:29,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 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 20:24:29,781 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 46 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:29,781 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 461 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:24:29,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-27 20:24:29,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-27 20:24:29,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 298 states have (on average 1.2986577181208054) internal successors, (387), 376 states have internal predecessors, (387), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:24:29,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 433 transitions. [2024-11-27 20:24:29,799 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 433 transitions. Word has length 170 [2024-11-27 20:24:29,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:29,799 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 433 transitions. [2024-11-27 20:24:29,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.6) internal successors, (118), 6 states have internal predecessors, (118), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:24:29,800 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 433 transitions. [2024-11-27 20:24:29,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-27 20:24:29,801 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:29,801 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:29,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-27 20:24:30,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-27 20:24:30,005 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:30,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:30,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1301113713, now seen corresponding path program 1 times [2024-11-27 20:24:30,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:30,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15309734] [2024-11-27 20:24:30,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:30,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:30,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151044106] [2024-11-27 20:24:30,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:30,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:30,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:30,039 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:30,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:24:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:30,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:24:30,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-27 20:24:30,730 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:30,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:30,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15309734] [2024-11-27 20:24:30,872 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:30,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151044106] [2024-11-27 20:24:30,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151044106] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:30,872 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:30,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-27 20:24:30,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301142430] [2024-11-27 20:24:30,873 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:30,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:24:30,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:30,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:24:30,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:24:30,874 INFO L87 Difference]: Start difference. First operand 401 states and 433 transitions. Second operand has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:24:31,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:31,541 INFO L93 Difference]: Finished difference Result 405 states and 433 transitions. [2024-11-27 20:24:31,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:24:31,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 171 [2024-11-27 20:24:31,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:31,543 INFO L225 Difference]: With dead ends: 405 [2024-11-27 20:24:31,543 INFO L226 Difference]: Without dead ends: 401 [2024-11-27 20:24:31,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 173 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 20:24:31,544 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 44 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:31,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 468 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:24:31,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-27 20:24:31,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2024-11-27 20:24:31,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 298 states have (on average 1.2852348993288591) internal successors, (383), 376 states have internal predecessors, (383), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-27 20:24:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 429 transitions. [2024-11-27 20:24:31,565 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 429 transitions. Word has length 171 [2024-11-27 20:24:31,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:31,566 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 429 transitions. [2024-11-27 20:24:31,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.8) internal successors, (119), 6 states have internal predecessors, (119), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 20:24:31,566 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 429 transitions. [2024-11-27 20:24:31,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-27 20:24:31,567 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:31,568 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:31,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-27 20:24:31,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-27 20:24:31,772 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:31,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:31,772 INFO L85 PathProgramCache]: Analyzing trace with hash 111043647, now seen corresponding path program 1 times [2024-11-27 20:24:31,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:31,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115657311] [2024-11-27 20:24:31,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:31,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:31,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:31,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [105153752] [2024-11-27 20:24:31,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:31,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:31,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:31,802 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:31,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:24:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:31,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:24:31,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:32,797 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 33 proven. 52 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2024-11-27 20:24:32,797 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:32,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:32,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115657311] [2024-11-27 20:24:32,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:32,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105153752] [2024-11-27 20:24:32,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105153752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:32,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:32,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 20:24:32,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376955487] [2024-11-27 20:24:32,897 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:32,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:24:32,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:32,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:24:32,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:24:32,899 INFO L87 Difference]: Start difference. First operand 401 states and 429 transitions. Second operand has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 20:24:34,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:34,000 INFO L93 Difference]: Finished difference Result 409 states and 431 transitions. [2024-11-27 20:24:34,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:24:34,000 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 189 [2024-11-27 20:24:34,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:34,002 INFO L225 Difference]: With dead ends: 409 [2024-11-27 20:24:34,002 INFO L226 Difference]: Without dead ends: 369 [2024-11-27 20:24:34,002 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:24:34,003 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 28 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:34,003 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 824 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:24:34,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-11-27 20:24:34,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 367. [2024-11-27 20:24:34,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 266 states have (on average 1.2969924812030076) internal successors, (345), 344 states have internal predecessors, (345), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-27 20:24:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 387 transitions. [2024-11-27 20:24:34,028 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 387 transitions. Word has length 189 [2024-11-27 20:24:34,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:34,029 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 387 transitions. [2024-11-27 20:24:34,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 2 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-27 20:24:34,029 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 387 transitions. [2024-11-27 20:24:34,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-27 20:24:34,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:34,030 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:24:34,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:34,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 20:24:34,233 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:34,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:34,233 INFO L85 PathProgramCache]: Analyzing trace with hash -782921794, now seen corresponding path program 1 times [2024-11-27 20:24:34,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:34,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495336119] [2024-11-27 20:24:34,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:34,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:34,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2081904369] [2024-11-27 20:24:34,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:34,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:34,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:34,280 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:34,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 20:24:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:34,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:24:34,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:34,592 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-27 20:24:34,592 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:34,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:34,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495336119] [2024-11-27 20:24:34,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:34,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081904369] [2024-11-27 20:24:34,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081904369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:34,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:34,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-27 20:24:34,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862347804] [2024-11-27 20:24:34,710 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:34,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:24:34,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:34,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:24:34,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:24:34,711 INFO L87 Difference]: Start difference. First operand 367 states and 387 transitions. Second operand has 5 states, 4 states have (on average 33.25) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 20:24:34,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:34,901 INFO L93 Difference]: Finished difference Result 572 states and 601 transitions. [2024-11-27 20:24:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:24:34,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 33.25) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 190 [2024-11-27 20:24:34,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:34,904 INFO L225 Difference]: With dead ends: 572 [2024-11-27 20:24:34,904 INFO L226 Difference]: Without dead ends: 571 [2024-11-27 20:24:34,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:24:34,905 INFO L435 NwaCegarLoop]: 217 mSDtfsCounter, 189 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:34,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 669 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:24:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-27 20:24:34,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 374. [2024-11-27 20:24:34,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 272 states have (on average 1.2904411764705883) internal successors, (351), 350 states have internal predecessors, (351), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-27 20:24:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 395 transitions. [2024-11-27 20:24:34,925 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 395 transitions. Word has length 190 [2024-11-27 20:24:34,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:34,926 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 395 transitions. [2024-11-27 20:24:34,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 33.25) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-27 20:24:34,926 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 395 transitions. [2024-11-27 20:24:34,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-27 20:24:34,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:34,927 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:24:34,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-27 20:24:35,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:35,128 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:35,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:35,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1099966601, now seen corresponding path program 2 times [2024-11-27 20:24:35,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:35,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218728170] [2024-11-27 20:24:35,128 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:35,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:35,165 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:35,165 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:24:35,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [880799936] [2024-11-27 20:24:35,167 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:35,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:35,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:35,175 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:35,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 20:24:35,262 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:35,263 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:35,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:24:35,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:36,142 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 0 proven. 106 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:24:36,142 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:36,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:36,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218728170] [2024-11-27 20:24:36,565 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:36,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880799936] [2024-11-27 20:24:36,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880799936] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:36,566 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:36,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-27 20:24:36,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066710104] [2024-11-27 20:24:36,566 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:36,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-27 20:24:36,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:36,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-27 20:24:36,567 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:24:36,567 INFO L87 Difference]: Start difference. First operand 374 states and 395 transitions. Second operand has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 20:24:37,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:37,661 INFO L93 Difference]: Finished difference Result 527 states and 607 transitions. [2024-11-27 20:24:37,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:24:37,661 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 197 [2024-11-27 20:24:37,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:37,664 INFO L225 Difference]: With dead ends: 527 [2024-11-27 20:24:37,664 INFO L226 Difference]: Without dead ends: 505 [2024-11-27 20:24:37,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:24:37,665 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 121 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 1577 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 1598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:37,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 419 Invalid, 1598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1577 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:24:37,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2024-11-27 20:24:37,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 493. [2024-11-27 20:24:37,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 383 states have (on average 1.3368146214099217) internal successors, (512), 461 states have internal predecessors, (512), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-27 20:24:37,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 572 transitions. [2024-11-27 20:24:37,688 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 572 transitions. Word has length 197 [2024-11-27 20:24:37,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:37,689 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 572 transitions. [2024-11-27 20:24:37,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 16.875) internal successors, (135), 9 states have internal predecessors, (135), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-27 20:24:37,689 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 572 transitions. [2024-11-27 20:24:37,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-27 20:24:37,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:37,690 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:24:37,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:37,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:37,891 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:37,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:37,891 INFO L85 PathProgramCache]: Analyzing trace with hash 260773822, now seen corresponding path program 2 times [2024-11-27 20:24:37,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:37,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003784457] [2024-11-27 20:24:37,891 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:37,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:37,914 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:37,914 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:38,146 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:24:38,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:38,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003784457] [2024-11-27 20:24:38,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003784457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:38,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832808284] [2024-11-27 20:24:38,147 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:38,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:38,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:38,149 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:38,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 20:24:38,229 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:38,229 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:38,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:24:38,234 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:38,833 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:24:38,833 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:39,181 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:24:39,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832808284] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:39,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:39,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-27 20:24:39,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872998021] [2024-11-27 20:24:39,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:39,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:24:39,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:39,183 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:24:39,183 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:24:39,184 INFO L87 Difference]: Start difference. First operand 493 states and 572 transitions. Second operand has 13 states, 12 states have (on average 31.25) internal successors, (375), 13 states have internal predecessors, (375), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:24:40,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:40,707 INFO L93 Difference]: Finished difference Result 493 states and 572 transitions. [2024-11-27 20:24:40,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:24:40,708 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 31.25) internal successors, (375), 13 states have internal predecessors, (375), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 198 [2024-11-27 20:24:40,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:40,709 INFO L225 Difference]: With dead ends: 493 [2024-11-27 20:24:40,709 INFO L226 Difference]: Without dead ends: 489 [2024-11-27 20:24:40,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 388 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:24:40,710 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 426 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:40,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 572 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 20:24:40,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-27 20:24:40,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2024-11-27 20:24:40,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 383 states have (on average 1.3159268929503916) internal successors, (504), 457 states have internal predecessors, (504), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-27 20:24:40,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 564 transitions. [2024-11-27 20:24:40,736 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 564 transitions. Word has length 198 [2024-11-27 20:24:40,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:40,737 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 564 transitions. [2024-11-27 20:24:40,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 31.25) internal successors, (375), 13 states have internal predecessors, (375), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:24:40,737 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 564 transitions. [2024-11-27 20:24:40,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-27 20:24:40,738 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:40,738 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:24:40,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-27 20:24:40,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:40,939 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:40,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:40,940 INFO L85 PathProgramCache]: Analyzing trace with hash -505946023, now seen corresponding path program 2 times [2024-11-27 20:24:40,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:40,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12011785] [2024-11-27 20:24:40,940 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:40,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:40,963 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:40,964 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:41,186 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:24:41,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:41,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12011785] [2024-11-27 20:24:41,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12011785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:41,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572085718] [2024-11-27 20:24:41,187 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:41,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:41,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:41,189 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:41,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-27 20:24:41,268 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:41,268 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:41,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 20:24:41,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:24:41,871 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:24:42,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572085718] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:42,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:24:42,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2024-11-27 20:24:42,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993092612] [2024-11-27 20:24:42,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:42,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:24:42,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:42,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:24:42,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:24:42,255 INFO L87 Difference]: Start difference. First operand 489 states and 564 transitions. Second operand has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 13 states have internal predecessors, (377), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:24:43,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:43,392 INFO L93 Difference]: Finished difference Result 546 states and 611 transitions. [2024-11-27 20:24:43,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 20:24:43,392 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 13 states have internal predecessors, (377), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 199 [2024-11-27 20:24:43,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:43,394 INFO L225 Difference]: With dead ends: 546 [2024-11-27 20:24:43,394 INFO L226 Difference]: Without dead ends: 544 [2024-11-27 20:24:43,395 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=169, Unknown=0, NotChecked=0, Total=272 [2024-11-27 20:24:43,395 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 518 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 1065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:43,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 569 Invalid, 1065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:24:43,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-27 20:24:43,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 516. [2024-11-27 20:24:43,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 516 states, 407 states have (on average 1.2997542997542997) internal successors, (529), 481 states have internal predecessors, (529), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-27 20:24:43,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 516 states and 595 transitions. [2024-11-27 20:24:43,435 INFO L78 Accepts]: Start accepts. Automaton has 516 states and 595 transitions. Word has length 199 [2024-11-27 20:24:43,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:43,435 INFO L471 AbstractCegarLoop]: Abstraction has 516 states and 595 transitions. [2024-11-27 20:24:43,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 31.416666666666668) internal successors, (377), 13 states have internal predecessors, (377), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:24:43,436 INFO L276 IsEmpty]: Start isEmpty. Operand 516 states and 595 transitions. [2024-11-27 20:24:43,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-11-27 20:24:43,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:43,437 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:24:43,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:43,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:43,642 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:43,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:43,643 INFO L85 PathProgramCache]: Analyzing trace with hash -882820805, now seen corresponding path program 1 times [2024-11-27 20:24:43,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:43,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205996482] [2024-11-27 20:24:43,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:43,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:43,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:43,939 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:24:43,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:43,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205996482] [2024-11-27 20:24:43,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205996482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:43,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333329596] [2024-11-27 20:24:43,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:43,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:43,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:43,943 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:43,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-27 20:24:44,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:44,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:24:44,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:44,751 INFO L134 CoverageAnalysis]: Checked inductivity of 426 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:24:44,752 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:44,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333329596] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:44,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:24:44,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-27 20:24:44,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140244432] [2024-11-27 20:24:44,877 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:44,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:24:44,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:44,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:24:44,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:24:44,878 INFO L87 Difference]: Start difference. First operand 516 states and 595 transitions. Second operand has 11 states, 10 states have (on average 25.1) internal successors, (251), 11 states have internal predecessors, (251), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-27 20:24:48,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:48,016 INFO L93 Difference]: Finished difference Result 516 states and 595 transitions. [2024-11-27 20:24:48,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:24:48,017 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 25.1) internal successors, (251), 11 states have internal predecessors, (251), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 201 [2024-11-27 20:24:48,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:48,019 INFO L225 Difference]: With dead ends: 516 [2024-11-27 20:24:48,019 INFO L226 Difference]: Without dead ends: 504 [2024-11-27 20:24:48,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:24:48,019 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 373 mSDsluCounter, 580 mSDsCounter, 0 mSdLazyCounter, 1505 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 1545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:48,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 699 Invalid, 1545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1505 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-27 20:24:48,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-27 20:24:48,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2024-11-27 20:24:48,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 407 states have (on average 1.2628992628992628) internal successors, (514), 469 states have internal predecessors, (514), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-27 20:24:48,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 580 transitions. [2024-11-27 20:24:48,045 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 580 transitions. Word has length 201 [2024-11-27 20:24:48,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:48,046 INFO L471 AbstractCegarLoop]: Abstraction has 504 states and 580 transitions. [2024-11-27 20:24:48,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 25.1) internal successors, (251), 11 states have internal predecessors, (251), 5 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-27 20:24:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 580 transitions. [2024-11-27 20:24:48,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-27 20:24:48,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:48,047 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-27 20:24:48,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-27 20:24:48,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:48,252 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:48,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:48,252 INFO L85 PathProgramCache]: Analyzing trace with hash -2029755932, now seen corresponding path program 1 times [2024-11-27 20:24:48,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:48,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369111783] [2024-11-27 20:24:48,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:48,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:24:48,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [331589920] [2024-11-27 20:24:48,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:24:48,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:48,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:48,282 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:48,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-27 20:24:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:24:48,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 20:24:48,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:49,198 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:24:49,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:49,844 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-27 20:24:49,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:49,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369111783] [2024-11-27 20:24:49,845 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:49,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331589920] [2024-11-27 20:24:49,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331589920] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:24:49,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:24:49,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 20:24:49,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604614727] [2024-11-27 20:24:49,845 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:49,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:24:49,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:49,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:24:49,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:24:49,847 INFO L87 Difference]: Start difference. First operand 504 states and 580 transitions. Second operand has 16 states, 15 states have (on average 18.666666666666668) internal successors, (280), 16 states have internal predecessors, (280), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:24:51,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:24:55,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:55,843 INFO L93 Difference]: Finished difference Result 806 states and 984 transitions. [2024-11-27 20:24:55,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:24:55,843 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 18.666666666666668) internal successors, (280), 16 states have internal predecessors, (280), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 204 [2024-11-27 20:24:55,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:55,848 INFO L225 Difference]: With dead ends: 806 [2024-11-27 20:24:55,848 INFO L226 Difference]: Without dead ends: 722 [2024-11-27 20:24:55,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=327, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:24:55,849 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 1379 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:55,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 935 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 2533 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-27 20:24:55,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2024-11-27 20:24:55,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 521. [2024-11-27 20:24:55,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 423 states have (on average 1.2387706855791962) internal successors, (524), 484 states have internal predecessors, (524), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:24:55,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 594 transitions. [2024-11-27 20:24:55,889 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 594 transitions. Word has length 204 [2024-11-27 20:24:55,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:55,890 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 594 transitions. [2024-11-27 20:24:55,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 18.666666666666668) internal successors, (280), 16 states have internal predecessors, (280), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:24:55,890 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 594 transitions. [2024-11-27 20:24:55,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2024-11-27 20:24:55,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:55,895 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:55,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:56,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:56,096 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:56,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:56,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2140354338, now seen corresponding path program 2 times [2024-11-27 20:24:56,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:56,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135375368] [2024-11-27 20:24:56,097 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:56,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:56,125 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:56,126 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:24:56,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176926098] [2024-11-27 20:24:56,127 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:56,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:56,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:56,131 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:56,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-27 20:24:56,230 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:56,231 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:56,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:24:56,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:24:57,265 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:24:57,265 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:24:57,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:24:57,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135375368] [2024-11-27 20:24:57,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:24:57,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176926098] [2024-11-27 20:24:57,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176926098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:24:57,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:24:57,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-27 20:24:57,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354068694] [2024-11-27 20:24:57,838 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:24:57,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 20:24:57,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:24:57,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:24:57,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-27 20:24:57,840 INFO L87 Difference]: Start difference. First operand 521 states and 594 transitions. Second operand has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:24:59,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:24:59,014 INFO L93 Difference]: Finished difference Result 521 states and 594 transitions. [2024-11-27 20:24:59,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:24:59,015 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 246 [2024-11-27 20:24:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:24:59,017 INFO L225 Difference]: With dead ends: 521 [2024-11-27 20:24:59,017 INFO L226 Difference]: Without dead ends: 518 [2024-11-27 20:24:59,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=224, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:24:59,018 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 516 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 981 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:24:59,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 141 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 981 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:24:59,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-27 20:24:59,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2024-11-27 20:24:59,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 423 states have (on average 1.2245862884160756) internal successors, (518), 481 states have internal predecessors, (518), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:24:59,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 588 transitions. [2024-11-27 20:24:59,058 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 588 transitions. Word has length 246 [2024-11-27 20:24:59,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:24:59,059 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 588 transitions. [2024-11-27 20:24:59,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.142857142857142) internal successors, (169), 8 states have internal predecessors, (169), 4 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2024-11-27 20:24:59,059 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 588 transitions. [2024-11-27 20:24:59,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-27 20:24:59,061 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:24:59,061 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:24:59,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-27 20:24:59,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-27 20:24:59,265 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:24:59,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:24:59,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1926475216, now seen corresponding path program 2 times [2024-11-27 20:24:59,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:24:59,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085125629] [2024-11-27 20:24:59,265 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:59,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:24:59,301 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:59,301 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:24:59,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2057677936] [2024-11-27 20:24:59,302 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:24:59,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:24:59,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:24:59,305 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:24:59,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-27 20:24:59,406 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:24:59,407 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:24:59,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:24:59,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:25:00,497 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:00,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:00,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085125629] [2024-11-27 20:25:00,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:25:00,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057677936] [2024-11-27 20:25:00,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057677936] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:25:00,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:25:00,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-27 20:25:00,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627988809] [2024-11-27 20:25:00,660 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:25:00,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:25:00,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:00,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:25:00,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:25:00,661 INFO L87 Difference]: Start difference. First operand 518 states and 588 transitions. Second operand has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 10 states have internal predecessors, (170), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-27 20:25:01,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:01,930 INFO L93 Difference]: Finished difference Result 527 states and 588 transitions. [2024-11-27 20:25:01,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:25:01,930 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 10 states have internal predecessors, (170), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 247 [2024-11-27 20:25:01,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:01,931 INFO L225 Difference]: With dead ends: 527 [2024-11-27 20:25:01,931 INFO L226 Difference]: Without dead ends: 526 [2024-11-27 20:25:01,932 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:25:01,932 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 116 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 1887 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:01,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 630 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1887 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-27 20:25:01,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-27 20:25:01,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 518. [2024-11-27 20:25:01,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 423 states have (on average 1.2222222222222223) internal successors, (517), 481 states have internal predecessors, (517), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:25:01,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 587 transitions. [2024-11-27 20:25:01,963 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 587 transitions. Word has length 247 [2024-11-27 20:25:01,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:01,963 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 587 transitions. [2024-11-27 20:25:01,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 18.88888888888889) internal successors, (170), 10 states have internal predecessors, (170), 5 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-27 20:25:01,963 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 587 transitions. [2024-11-27 20:25:01,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-27 20:25:01,965 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:01,965 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:01,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-27 20:25:02,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:02,169 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:25:02,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:02,170 INFO L85 PathProgramCache]: Analyzing trace with hash -2024637786, now seen corresponding path program 2 times [2024-11-27 20:25:02,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:02,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855410767] [2024-11-27 20:25:02,170 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:25:02,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:02,212 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:25:02,212 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:25:02,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552505330] [2024-11-27 20:25:02,214 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:25:02,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:02,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:02,216 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:02,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-27 20:25:02,332 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:25:02,332 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:25:02,334 INFO L256 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:25:02,336 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:03,536 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:25:03,536 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:03,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:03,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855410767] [2024-11-27 20:25:03,995 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:25:03,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552505330] [2024-11-27 20:25:03,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552505330] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:25:03,995 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:25:03,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-27 20:25:03,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338588151] [2024-11-27 20:25:03,995 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:25:03,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-27 20:25:03,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:03,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-27 20:25:03,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:25:03,996 INFO L87 Difference]: Start difference. First operand 518 states and 587 transitions. Second operand has 11 states, 10 states have (on average 17.3) internal successors, (173), 11 states have internal predecessors, (173), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-27 20:25:05,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:05,371 INFO L93 Difference]: Finished difference Result 520 states and 587 transitions. [2024-11-27 20:25:05,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:25:05,371 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 17.3) internal successors, (173), 11 states have internal predecessors, (173), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 250 [2024-11-27 20:25:05,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:05,373 INFO L225 Difference]: With dead ends: 520 [2024-11-27 20:25:05,373 INFO L226 Difference]: Without dead ends: 518 [2024-11-27 20:25:05,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:25:05,374 INFO L435 NwaCegarLoop]: 176 mSDtfsCounter, 25 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 2472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:05,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 492 Invalid, 2472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 20:25:05,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-27 20:25:05,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2024-11-27 20:25:05,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 423 states have (on average 1.2174940898345155) internal successors, (515), 481 states have internal predecessors, (515), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:25:05,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 585 transitions. [2024-11-27 20:25:05,402 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 585 transitions. Word has length 250 [2024-11-27 20:25:05,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:05,403 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 585 transitions. [2024-11-27 20:25:05,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 17.3) internal successors, (173), 11 states have internal predecessors, (173), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-27 20:25:05,403 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 585 transitions. [2024-11-27 20:25:05,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-27 20:25:05,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:05,404 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:05,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-27 20:25:05,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:05,605 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:25:05,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:05,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1660738260, now seen corresponding path program 2 times [2024-11-27 20:25:05,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:05,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471931990] [2024-11-27 20:25:05,606 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:25:05,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:05,635 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:25:05,635 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:25:05,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784758254] [2024-11-27 20:25:05,636 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:25:05,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:05,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:05,640 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:05,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-27 20:25:05,748 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:25:05,748 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:25:05,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-27 20:25:05,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:08,052 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:25:08,052 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:09,461 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:25:09,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:09,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471931990] [2024-11-27 20:25:09,461 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:25:09,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784758254] [2024-11-27 20:25:09,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784758254] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:25:09,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:25:09,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-11-27 20:25:09,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227795329] [2024-11-27 20:25:09,462 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:25:09,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:25:09,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:09,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:25:09,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:25:09,464 INFO L87 Difference]: Start difference. First operand 518 states and 585 transitions. Second operand has 16 states, 15 states have (on average 22.933333333333334) internal successors, (344), 16 states have internal predecessors, (344), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-27 20:25:15,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:25:18,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:25:28,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:25:28,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:28,135 INFO L93 Difference]: Finished difference Result 539 states and 603 transitions. [2024-11-27 20:25:28,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:25:28,136 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 22.933333333333334) internal successors, (344), 16 states have internal predecessors, (344), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) Word has length 251 [2024-11-27 20:25:28,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:28,137 INFO L225 Difference]: With dead ends: 539 [2024-11-27 20:25:28,137 INFO L226 Difference]: Without dead ends: 535 [2024-11-27 20:25:28,138 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 486 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:25:28,138 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 273 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 2539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:28,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 630 Invalid, 2539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2513 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2024-11-27 20:25:28,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-27 20:25:28,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 531. [2024-11-27 20:25:28,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 435 states have (on average 1.2091954022988505) internal successors, (526), 493 states have internal predecessors, (526), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:25:28,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 598 transitions. [2024-11-27 20:25:28,176 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 598 transitions. Word has length 251 [2024-11-27 20:25:28,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:28,176 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 598 transitions. [2024-11-27 20:25:28,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 22.933333333333334) internal successors, (344), 16 states have internal predecessors, (344), 6 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 6 states have call predecessors, (32), 6 states have call successors, (32) [2024-11-27 20:25:28,177 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 598 transitions. [2024-11-27 20:25:28,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-27 20:25:28,178 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:28,178 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-11-27 20:25:28,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-27 20:25:28,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-27 20:25:28,379 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:25:28,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:28,380 INFO L85 PathProgramCache]: Analyzing trace with hash 905946038, now seen corresponding path program 1 times [2024-11-27 20:25:28,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:28,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236825450] [2024-11-27 20:25:28,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:28,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:25:28,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879382330] [2024-11-27 20:25:28,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:25:28,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:28,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:28,420 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:28,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-27 20:25:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:25:28,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:25:28,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:28,787 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 219 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:25:28,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:29,270 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 0 proven. 219 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 20:25:29,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:29,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236825450] [2024-11-27 20:25:29,271 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:25:29,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879382330] [2024-11-27 20:25:29,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879382330] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:25:29,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:25:29,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-27 20:25:29,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697287866] [2024-11-27 20:25:29,271 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:25:29,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:25:29,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:29,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:25:29,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:25:29,273 INFO L87 Difference]: Start difference. First operand 531 states and 598 transitions. Second operand has 10 states, 9 states have (on average 40.0) internal successors, (360), 10 states have internal predecessors, (360), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2024-11-27 20:25:29,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:29,706 INFO L93 Difference]: Finished difference Result 668 states and 713 transitions. [2024-11-27 20:25:29,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 20:25:29,706 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 40.0) internal successors, (360), 10 states have internal predecessors, (360), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 259 [2024-11-27 20:25:29,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:29,708 INFO L225 Difference]: With dead ends: 668 [2024-11-27 20:25:29,709 INFO L226 Difference]: Without dead ends: 666 [2024-11-27 20:25:29,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 508 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2024-11-27 20:25:29,710 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 1452 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1463 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:29,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1463 Valid, 1520 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 20:25:29,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2024-11-27 20:25:29,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 530. [2024-11-27 20:25:29,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 435 states have (on average 1.2) internal successors, (522), 492 states have internal predecessors, (522), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:25:29,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 594 transitions. [2024-11-27 20:25:29,748 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 594 transitions. Word has length 259 [2024-11-27 20:25:29,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:29,749 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 594 transitions. [2024-11-27 20:25:29,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 40.0) internal successors, (360), 10 states have internal predecessors, (360), 8 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2024-11-27 20:25:29,749 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 594 transitions. [2024-11-27 20:25:29,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-11-27 20:25:29,751 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:29,751 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 17, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:25:29,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-27 20:25:29,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-27 20:25:29,951 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr78ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:25:29,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:29,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1483480862, now seen corresponding path program 2 times [2024-11-27 20:25:29,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:29,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000672205] [2024-11-27 20:25:29,952 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:25:29,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:29,985 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:25:29,985 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:25:29,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [621980567] [2024-11-27 20:25:29,987 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:25:29,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:29,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:29,989 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:29,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-27 20:25:30,100 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:25:30,101 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:25:30,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 20:25:30,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:25:31,298 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 20:25:31,298 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:25:32,158 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-27 20:25:32,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:25:32,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000672205] [2024-11-27 20:25:32,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:25:32,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621980567] [2024-11-27 20:25:32,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621980567] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:25:32,158 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:25:32,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-27 20:25:32,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504500673] [2024-11-27 20:25:32,159 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:25:32,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-27 20:25:32,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:25:32,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 20:25:32,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:25:32,161 INFO L87 Difference]: Start difference. First operand 530 states and 594 transitions. Second operand has 20 states, 19 states have (on average 19.473684210526315) internal successors, (370), 20 states have internal predecessors, (370), 8 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 8 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-27 20:25:35,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:25:35,817 INFO L93 Difference]: Finished difference Result 663 states and 784 transitions. [2024-11-27 20:25:35,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-27 20:25:35,818 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 19.473684210526315) internal successors, (370), 20 states have internal predecessors, (370), 8 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 8 states have call predecessors, (34), 8 states have call successors, (34) Word has length 269 [2024-11-27 20:25:35,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:25:35,820 INFO L225 Difference]: With dead ends: 663 [2024-11-27 20:25:35,820 INFO L226 Difference]: Without dead ends: 623 [2024-11-27 20:25:35,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=301, Invalid=889, Unknown=0, NotChecked=0, Total=1190 [2024-11-27 20:25:35,821 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 825 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 3455 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 3540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 3455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:25:35,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 476 Invalid, 3540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 3455 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-27 20:25:35,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2024-11-27 20:25:35,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 545. [2024-11-27 20:25:35,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 448 states have (on average 1.2276785714285714) internal successors, (550), 505 states have internal predecessors, (550), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 20:25:35,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 626 transitions. [2024-11-27 20:25:35,864 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 626 transitions. Word has length 269 [2024-11-27 20:25:35,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:25:35,864 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 626 transitions. [2024-11-27 20:25:35,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 19.473684210526315) internal successors, (370), 20 states have internal predecessors, (370), 8 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 8 states have call predecessors, (34), 8 states have call successors, (34) [2024-11-27 20:25:35,864 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 626 transitions. [2024-11-27 20:25:35,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-27 20:25:35,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:25:35,865 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1] [2024-11-27 20:25:35,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-27 20:25:36,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:36,066 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:25:36,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:25:36,066 INFO L85 PathProgramCache]: Analyzing trace with hash 666632474, now seen corresponding path program 3 times [2024-11-27 20:25:36,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:25:36,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618401403] [2024-11-27 20:25:36,067 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:25:36,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:25:36,128 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 20:25:36,128 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:25:36,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [714686258] [2024-11-27 20:25:36,130 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:25:36,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:25:36,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:25:36,138 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:25:36,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-27 20:25:36,236 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-27 20:25:36,237 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:25:36,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-27 20:25:36,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:26:32,095 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 146 proven. 94 refuted. 0 times theorem prover too weak. 621 trivial. 0 not checked. [2024-11-27 20:26:32,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:26:33,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:26:33,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618401403] [2024-11-27 20:26:33,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:26:33,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714686258] [2024-11-27 20:26:33,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714686258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:26:33,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:26:33,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-27 20:26:33,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292642494] [2024-11-27 20:26:33,810 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:26:33,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-27 20:26:33,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:26:33,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:26:33,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:26:33,811 INFO L87 Difference]: Start difference. First operand 545 states and 626 transitions. Second operand has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-27 20:26:38,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:26:46,458 WARN L286 SmtUtils]: Spent 6.90s on a formula simplification. DAG size of input: 56 DAG size of output: 35 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:26:51,148 WARN L539 Checker$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 20:26:58,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:27:01,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:27:11,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:27:16,839 WARN L539 Checker$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 20:27:23,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:27:29,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:27:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:29,773 INFO L93 Difference]: Finished difference Result 547 states and 628 transitions. [2024-11-27 20:27:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:27:29,773 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) Word has length 277 [2024-11-27 20:27:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:29,775 INFO L225 Difference]: With dead ends: 547 [2024-11-27 20:27:29,775 INFO L226 Difference]: Without dead ends: 526 [2024-11-27 20:27:29,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 300 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 33.7s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2024-11-27 20:27:29,776 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 1009 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 113 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:29,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 139 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1046 Invalid, 2 Unknown, 0 Unchecked, 28.8s Time] [2024-11-27 20:27:29,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-27 20:27:29,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 524. [2024-11-27 20:27:29,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 448 states have (on average 1.1339285714285714) internal successors, (508), 484 states have internal predecessors, (508), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 20:27:29,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 584 transitions. [2024-11-27 20:27:29,841 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 584 transitions. Word has length 277 [2024-11-27 20:27:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:29,841 INFO L471 AbstractCegarLoop]: Abstraction has 524 states and 584 transitions. [2024-11-27 20:27:29,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 5 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 4 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-27 20:27:29,841 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 584 transitions. [2024-11-27 20:27:29,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2024-11-27 20:27:29,842 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:29,842 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1] [2024-11-27 20:27:29,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-27 20:27:30,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:30,043 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:27:30,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:30,043 INFO L85 PathProgramCache]: Analyzing trace with hash 829676325, now seen corresponding path program 1 times [2024-11-27 20:27:30,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:30,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037169740] [2024-11-27 20:27:30,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:27:30,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:30,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:27:30,437 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 0 proven. 282 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:27:30,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:30,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037169740] [2024-11-27 20:27:30,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037169740] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:30,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675567159] [2024-11-27 20:27:30,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:27:30,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:30,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:27:30,440 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:27:30,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-27 20:27:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:27:30,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:27:30,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 894 backedges. 282 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:27:31,029 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:27:31,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675567159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:27:31,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:27:31,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2024-11-27 20:27:31,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74665889] [2024-11-27 20:27:31,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:27:31,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:27:31,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:31,030 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:27:31,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:27:31,030 INFO L87 Difference]: Start difference. First operand 524 states and 584 transitions. Second operand has 7 states, 6 states have (on average 33.5) internal successors, (201), 7 states have internal predecessors, (201), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 20:27:31,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:31,732 INFO L93 Difference]: Finished difference Result 524 states and 584 transitions. [2024-11-27 20:27:31,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:27:31,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 33.5) internal successors, (201), 7 states have internal predecessors, (201), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 288 [2024-11-27 20:27:31,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:31,734 INFO L225 Difference]: With dead ends: 524 [2024-11-27 20:27:31,735 INFO L226 Difference]: Without dead ends: 520 [2024-11-27 20:27:31,735 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:27:31,735 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 124 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:31,736 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 403 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 20:27:31,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-27 20:27:31,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 520. [2024-11-27 20:27:31,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 448 states have (on average 1.1160714285714286) internal successors, (500), 480 states have internal predecessors, (500), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-27 20:27:31,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 576 transitions. [2024-11-27 20:27:31,793 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 576 transitions. Word has length 288 [2024-11-27 20:27:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:31,793 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 576 transitions. [2024-11-27 20:27:31,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 33.5) internal successors, (201), 7 states have internal predecessors, (201), 4 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-27 20:27:31,793 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 576 transitions. [2024-11-27 20:27:31,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2024-11-27 20:27:31,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:31,795 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1] [2024-11-27 20:27:31,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-27 20:27:31,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:31,996 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:27:31,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:31,996 INFO L85 PathProgramCache]: Analyzing trace with hash -49837594, now seen corresponding path program 1 times [2024-11-27 20:27:31,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:31,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785584070] [2024-11-27 20:27:31,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:27:31,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:27:32,604 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:27:32,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:32,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785584070] [2024-11-27 20:27:32,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785584070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:32,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831417521] [2024-11-27 20:27:32,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:27:32,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:32,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:27:32,607 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:27:32,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 20:27:32,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:27:32,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:27:32,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 180 proven. 105 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-27 20:27:34,091 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:39,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831417521] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:39,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:27:39,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2024-11-27 20:27:39,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944509205] [2024-11-27 20:27:39,960 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:27:39,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-27 20:27:39,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:39,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-27 20:27:39,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=717, Unknown=1, NotChecked=0, Total=870 [2024-11-27 20:27:39,962 INFO L87 Difference]: Start difference. First operand 520 states and 576 transitions. Second operand has 25 states, 24 states have (on average 16.666666666666668) internal successors, (400), 25 states have internal predecessors, (400), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:27:43,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:43,207 INFO L93 Difference]: Finished difference Result 520 states and 576 transitions. [2024-11-27 20:27:43,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:27:43,207 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 16.666666666666668) internal successors, (400), 25 states have internal predecessors, (400), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) Word has length 289 [2024-11-27 20:27:43,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:43,209 INFO L225 Difference]: With dead ends: 520 [2024-11-27 20:27:43,209 INFO L226 Difference]: Without dead ends: 486 [2024-11-27 20:27:43,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=313, Invalid=1092, Unknown=1, NotChecked=0, Total=1406 [2024-11-27 20:27:43,210 INFO L435 NwaCegarLoop]: 148 mSDtfsCounter, 1175 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 1395 SdHoareTripleChecker+Invalid, 2488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:43,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1175 Valid, 1395 Invalid, 2488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 20:27:43,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-27 20:27:43,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2024-11-27 20:27:43,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 420 states have (on average 1.1047619047619048) internal successors, (464), 448 states have internal predecessors, (464), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:27:43,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 536 transitions. [2024-11-27 20:27:43,275 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 536 transitions. Word has length 289 [2024-11-27 20:27:43,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:43,275 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 536 transitions. [2024-11-27 20:27:43,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 16.666666666666668) internal successors, (400), 25 states have internal predecessors, (400), 8 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 8 states have call predecessors, (36), 8 states have call successors, (36) [2024-11-27 20:27:43,276 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 536 transitions. [2024-11-27 20:27:43,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-11-27 20:27:43,278 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:43,278 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1] [2024-11-27 20:27:43,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-27 20:27:43,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-27 20:27:43,478 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:27:43,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:43,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1883678798, now seen corresponding path program 1 times [2024-11-27 20:27:43,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:43,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396799888] [2024-11-27 20:27:43,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:27:43,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:43,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:27:43,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 1015 trivial. 0 not checked. [2024-11-27 20:27:43,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:43,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396799888] [2024-11-27 20:27:43,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396799888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:27:43,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:27:43,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:27:43,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790575265] [2024-11-27 20:27:43,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:27:43,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:27:43,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:43,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:27:43,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:27:43,594 INFO L87 Difference]: Start difference. First operand 486 states and 536 transitions. Second operand has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:27:43,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:43,853 INFO L93 Difference]: Finished difference Result 486 states and 536 transitions. [2024-11-27 20:27:43,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:27:43,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 318 [2024-11-27 20:27:43,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:43,855 INFO L225 Difference]: With dead ends: 486 [2024-11-27 20:27:43,855 INFO L226 Difference]: Without dead ends: 485 [2024-11-27 20:27:43,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:27:43,855 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 195 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:43,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 146 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 20:27:43,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-27 20:27:43,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2024-11-27 20:27:43,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 420 states have (on average 1.1) internal successors, (462), 447 states have internal predecessors, (462), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:27:43,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 534 transitions. [2024-11-27 20:27:43,916 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 534 transitions. Word has length 318 [2024-11-27 20:27:43,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:43,916 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 534 transitions. [2024-11-27 20:27:43,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 30.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-27 20:27:43,916 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 534 transitions. [2024-11-27 20:27:43,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-27 20:27:43,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:43,918 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:27:43,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-27 20:27:43,918 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:27:43,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:43,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1166571341, now seen corresponding path program 3 times [2024-11-27 20:27:43,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:43,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904550833] [2024-11-27 20:27:43,919 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:27:43,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:43,966 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 20:27:43,967 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:27:43,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553985224] [2024-11-27 20:27:43,969 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:27:43,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:43,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:27:43,971 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:27:43,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-27 20:27:44,064 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:27:44,065 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:44,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-27 20:27:44,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:45,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 90 proven. 360 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2024-11-27 20:27:45,320 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:45,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:45,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904550833] [2024-11-27 20:27:45,546 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:27:45,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553985224] [2024-11-27 20:27:45,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553985224] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:45,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:27:45,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-27 20:27:45,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680510216] [2024-11-27 20:27:45,546 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:27:45,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-27 20:27:45,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:45,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:27:45,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:27:45,548 INFO L87 Difference]: Start difference. First operand 485 states and 534 transitions. Second operand has 16 states, 15 states have (on average 15.2) internal successors, (228), 16 states have internal predecessors, (228), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 20:27:47,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:47,988 INFO L93 Difference]: Finished difference Result 555 states and 604 transitions. [2024-11-27 20:27:47,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-27 20:27:47,988 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 15.2) internal successors, (228), 16 states have internal predecessors, (228), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 327 [2024-11-27 20:27:47,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:47,990 INFO L225 Difference]: With dead ends: 555 [2024-11-27 20:27:47,990 INFO L226 Difference]: Without dead ends: 509 [2024-11-27 20:27:47,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:27:47,990 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 179 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 3676 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 3705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:47,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 568 Invalid, 3705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3676 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-27 20:27:47,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-27 20:27:48,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 505. [2024-11-27 20:27:48,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 439 states have (on average 1.0956719817767653) internal successors, (481), 466 states have internal predecessors, (481), 37 states have call successors, (37), 1 states have call predecessors, (37), 1 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-27 20:27:48,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 555 transitions. [2024-11-27 20:27:48,032 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 555 transitions. Word has length 327 [2024-11-27 20:27:48,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:48,033 INFO L471 AbstractCegarLoop]: Abstraction has 505 states and 555 transitions. [2024-11-27 20:27:48,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 15.2) internal successors, (228), 16 states have internal predecessors, (228), 7 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2024-11-27 20:27:48,033 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 555 transitions. [2024-11-27 20:27:48,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2024-11-27 20:27:48,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:48,034 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:27:48,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-27 20:27:48,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-27 20:27:48,235 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:27:48,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1548718307, now seen corresponding path program 3 times [2024-11-27 20:27:48,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:48,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416809984] [2024-11-27 20:27:48,235 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:27:48,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:48,302 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-27 20:27:48,302 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:27:48,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [947190262] [2024-11-27 20:27:48,304 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:27:48,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:48,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:27:48,306 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:27:48,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-27 20:27:48,422 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:27:48,422 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:48,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-27 20:27:48,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:49,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 90 proven. 360 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2024-11-27 20:27:49,614 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:52,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:52,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416809984] [2024-11-27 20:27:52,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:27:52,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947190262] [2024-11-27 20:27:52,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947190262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:52,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:27:52,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2024-11-27 20:27:52,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036679715] [2024-11-27 20:27:52,313 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:27:52,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-27 20:27:52,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:52,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:27:52,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2024-11-27 20:27:52,314 INFO L87 Difference]: Start difference. First operand 505 states and 555 transitions. Second operand has 15 states, 14 states have (on average 16.5) internal successors, (231), 15 states have internal predecessors, (231), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-27 20:27:54,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:27:54,604 INFO L93 Difference]: Finished difference Result 511 states and 557 transitions. [2024-11-27 20:27:54,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:27:54,605 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 16.5) internal successors, (231), 15 states have internal predecessors, (231), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) Word has length 330 [2024-11-27 20:27:54,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:27:54,606 INFO L225 Difference]: With dead ends: 511 [2024-11-27 20:27:54,606 INFO L226 Difference]: Without dead ends: 474 [2024-11-27 20:27:54,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=107, Invalid=595, Unknown=0, NotChecked=0, Total=702 [2024-11-27 20:27:54,607 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 82 mSDsluCounter, 711 mSDsCounter, 0 mSdLazyCounter, 3503 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 3515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:27:54,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 834 Invalid, 3515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 3503 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-27 20:27:54,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-27 20:27:54,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 472. [2024-11-27 20:27:54,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 408 states have (on average 1.0931372549019607) internal successors, (446), 435 states have internal predecessors, (446), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:27:54,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 516 transitions. [2024-11-27 20:27:54,640 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 516 transitions. Word has length 330 [2024-11-27 20:27:54,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:27:54,640 INFO L471 AbstractCegarLoop]: Abstraction has 472 states and 516 transitions. [2024-11-27 20:27:54,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 16.5) internal successors, (231), 15 states have internal predecessors, (231), 6 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (21), 6 states have call predecessors, (21), 6 states have call successors, (21) [2024-11-27 20:27:54,640 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 516 transitions. [2024-11-27 20:27:54,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-27 20:27:54,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:27:54,642 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1] [2024-11-27 20:27:54,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-27 20:27:54,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-27 20:27:54,843 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:27:54,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:27:54,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1892138015, now seen corresponding path program 3 times [2024-11-27 20:27:54,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:27:54,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539084171] [2024-11-27 20:27:54,844 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:27:54,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:27:54,973 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-27 20:27:54,974 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:55,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 60 proven. 466 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-27 20:27:55,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:27:55,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539084171] [2024-11-27 20:27:55,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539084171] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:55,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885673654] [2024-11-27 20:27:55,611 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:27:55,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:27:55,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:27:55,613 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:27:55,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-27 20:27:55,670 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-27 20:27:55,670 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:27:55,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-27 20:27:55,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:27:56,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1472 backedges. 66 proven. 124 refuted. 0 times theorem prover too weak. 1282 trivial. 0 not checked. [2024-11-27 20:27:56,241 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:27:56,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885673654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:27:56,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:27:56,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 7] total 22 [2024-11-27 20:27:56,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865787937] [2024-11-27 20:27:56,549 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:27:56,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 20:27:56,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:27:56,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 20:27:56,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:27:56,553 INFO L87 Difference]: Start difference. First operand 472 states and 516 transitions. Second operand has 23 states, 22 states have (on average 15.318181818181818) internal successors, (337), 23 states have internal predecessors, (337), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) [2024-11-27 20:28:01,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-27 20:28:02,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:02,672 INFO L93 Difference]: Finished difference Result 535 states and 571 transitions. [2024-11-27 20:28:02,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-27 20:28:02,673 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 15.318181818181818) internal successors, (337), 23 states have internal predecessors, (337), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) Word has length 359 [2024-11-27 20:28:02,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:02,674 INFO L225 Difference]: With dead ends: 535 [2024-11-27 20:28:02,674 INFO L226 Difference]: Without dead ends: 534 [2024-11-27 20:28:02,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 398 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 704 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=715, Invalid=2707, Unknown=0, NotChecked=0, Total=3422 [2024-11-27 20:28:02,675 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 1423 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 2539 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 2670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 2539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:02,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 308 Invalid, 2670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 2539 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-27 20:28:02,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-27 20:28:02,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 471. [2024-11-27 20:28:02,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 408 states have (on average 1.088235294117647) internal successors, (444), 434 states have internal predecessors, (444), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:28:02,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 514 transitions. [2024-11-27 20:28:02,733 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 514 transitions. Word has length 359 [2024-11-27 20:28:02,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:02,733 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 514 transitions. [2024-11-27 20:28:02,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 15.318181818181818) internal successors, (337), 23 states have internal predecessors, (337), 8 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (31), 8 states have call predecessors, (31), 8 states have call successors, (31) [2024-11-27 20:28:02,733 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 514 transitions. [2024-11-27 20:28:02,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2024-11-27 20:28:02,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:02,736 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:02,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-27 20:28:02,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-27 20:28:02,937 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:28:02,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash 586065302, now seen corresponding path program 4 times [2024-11-27 20:28:02,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:02,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291394874] [2024-11-27 20:28:02,938 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:28:02,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:03,009 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:28:03,009 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:28:03,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [220706143] [2024-11-27 20:28:03,012 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:28:03,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:03,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:03,015 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:03,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-27 20:28:03,166 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:28:03,166 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:28:03,169 INFO L256 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 20:28:03,175 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:05,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 20:28:05,339 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:28:05,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:05,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291394874] [2024-11-27 20:28:05,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:28:05,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220706143] [2024-11-27 20:28:05,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220706143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:05,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:28:05,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-27 20:28:05,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745867800] [2024-11-27 20:28:05,494 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:28:05,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:28:05,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:05,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:28:05,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-11-27 20:28:05,495 INFO L87 Difference]: Start difference. First operand 471 states and 514 transitions. Second operand has 17 states, 16 states have (on average 17.5) internal successors, (280), 17 states have internal predecessors, (280), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:28:08,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:08,614 INFO L93 Difference]: Finished difference Result 514 states and 565 transitions. [2024-11-27 20:28:08,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:28:08,614 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 17.5) internal successors, (280), 17 states have internal predecessors, (280), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) Word has length 407 [2024-11-27 20:28:08,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:08,617 INFO L225 Difference]: With dead ends: 514 [2024-11-27 20:28:08,617 INFO L226 Difference]: Without dead ends: 513 [2024-11-27 20:28:08,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:28:08,618 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 115 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 5599 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 5604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:08,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 715 Invalid, 5604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 5599 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-27 20:28:08,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-27 20:28:08,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 471. [2024-11-27 20:28:08,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 408 states have (on average 1.0857843137254901) internal successors, (443), 434 states have internal predecessors, (443), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-27 20:28:08,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 513 transitions. [2024-11-27 20:28:08,698 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 513 transitions. Word has length 407 [2024-11-27 20:28:08,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:08,699 INFO L471 AbstractCegarLoop]: Abstraction has 471 states and 513 transitions. [2024-11-27 20:28:08,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 17.5) internal successors, (280), 17 states have internal predecessors, (280), 6 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 6 states have call predecessors, (26), 6 states have call successors, (26) [2024-11-27 20:28:08,699 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 513 transitions. [2024-11-27 20:28:08,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-27 20:28:08,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:08,702 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:08,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-27 20:28:08,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-27 20:28:08,903 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:28:08,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:08,903 INFO L85 PathProgramCache]: Analyzing trace with hash 568045208, now seen corresponding path program 1 times [2024-11-27 20:28:08,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:08,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058544880] [2024-11-27 20:28:08,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:08,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:28:08,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [614764837] [2024-11-27 20:28:08,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:08,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:08,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:08,952 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:08,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-27 20:28:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:09,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 20:28:09,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:11,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-27 20:28:11,499 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:28:12,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:12,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058544880] [2024-11-27 20:28:12,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:28:12,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614764837] [2024-11-27 20:28:12,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614764837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:12,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:28:12,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-27 20:28:12,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412922767] [2024-11-27 20:28:12,140 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:28:12,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 20:28:12,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:12,142 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 20:28:12,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:28:12,142 INFO L87 Difference]: Start difference. First operand 471 states and 513 transitions. Second operand has 17 states, 16 states have (on average 17.625) internal successors, (282), 17 states have internal predecessors, (282), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 20:28:14,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:14,660 INFO L93 Difference]: Finished difference Result 515 states and 566 transitions. [2024-11-27 20:28:14,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 20:28:14,660 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 17.625) internal successors, (282), 17 states have internal predecessors, (282), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) Word has length 409 [2024-11-27 20:28:14,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:14,661 INFO L225 Difference]: With dead ends: 515 [2024-11-27 20:28:14,661 INFO L226 Difference]: Without dead ends: 508 [2024-11-27 20:28:14,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 487 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:28:14,662 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 51 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 4699 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 4705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:14,662 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 821 Invalid, 4705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4699 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-27 20:28:14,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2024-11-27 20:28:14,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 502. [2024-11-27 20:28:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 438 states have (on average 1.1004566210045663) internal successors, (482), 464 states have internal predecessors, (482), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-27 20:28:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 554 transitions. [2024-11-27 20:28:14,705 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 554 transitions. Word has length 409 [2024-11-27 20:28:14,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:14,706 INFO L471 AbstractCegarLoop]: Abstraction has 502 states and 554 transitions. [2024-11-27 20:28:14,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 17.625) internal successors, (282), 17 states have internal predecessors, (282), 5 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 5 states have call predecessors, (26), 5 states have call successors, (26) [2024-11-27 20:28:14,706 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 554 transitions. [2024-11-27 20:28:14,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-27 20:28:14,708 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:14,708 INFO L218 NwaCegarLoop]: trace histogram [26, 26, 26, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:14,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-27 20:28:14,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-27 20:28:14,913 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr64ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:28:14,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:14,913 INFO L85 PathProgramCache]: Analyzing trace with hash 429532448, now seen corresponding path program 4 times [2024-11-27 20:28:14,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:14,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533923528] [2024-11-27 20:28:14,913 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:28:14,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:14,967 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:28:14,967 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:28:14,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1244773644] [2024-11-27 20:28:14,969 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-27 20:28:14,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:14,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:14,972 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:14,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-27 20:28:15,101 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-27 20:28:15,101 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:28:15,103 INFO L256 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-27 20:28:15,106 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:21,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 60 proven. 583 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-27 20:28:21,084 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:28:24,756 INFO L134 CoverageAnalysis]: Checked inductivity of 1868 backedges. 60 proven. 583 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-27 20:28:24,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:24,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533923528] [2024-11-27 20:28:24,757 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:28:24,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244773644] [2024-11-27 20:28:24,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244773644] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:28:24,757 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:28:24,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2024-11-27 20:28:24,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540827583] [2024-11-27 20:28:24,757 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:28:24,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-27 20:28:24,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:24,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-27 20:28:24,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=1403, Unknown=0, NotChecked=0, Total=1806 [2024-11-27 20:28:24,759 INFO L87 Difference]: Start difference. First operand 502 states and 554 transitions. Second operand has 43 states, 42 states have (on average 13.5) internal successors, (567), 43 states have internal predecessors, (567), 14 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 12 states have call predecessors, (52), 14 states have call successors, (52) [2024-11-27 20:28:37,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:28:43,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:43,929 INFO L93 Difference]: Finished difference Result 819 states and 912 transitions. [2024-11-27 20:28:43,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-27 20:28:43,930 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 13.5) internal successors, (567), 43 states have internal predecessors, (567), 14 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 12 states have call predecessors, (52), 14 states have call successors, (52) Word has length 410 [2024-11-27 20:28:43,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:43,933 INFO L225 Difference]: With dead ends: 819 [2024-11-27 20:28:43,933 INFO L226 Difference]: Without dead ends: 811 [2024-11-27 20:28:43,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 777 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 923 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=1352, Invalid=4198, Unknown=0, NotChecked=0, Total=5550 [2024-11-27 20:28:43,934 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 2949 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 8391 mSolverCounterSat, 383 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2949 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 8775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 8391 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:43,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2949 Valid, 608 Invalid, 8775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 8391 Invalid, 1 Unknown, 0 Unchecked, 14.9s Time] [2024-11-27 20:28:43,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-11-27 20:28:44,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 754. [2024-11-27 20:28:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 669 states have (on average 1.0687593423019432) internal successors, (715), 695 states have internal predecessors, (715), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-27 20:28:44,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 829 transitions. [2024-11-27 20:28:44,030 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 829 transitions. Word has length 410 [2024-11-27 20:28:44,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:44,031 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 829 transitions. [2024-11-27 20:28:44,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 13.5) internal successors, (567), 43 states have internal predecessors, (567), 14 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 12 states have call predecessors, (52), 14 states have call successors, (52) [2024-11-27 20:28:44,031 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 829 transitions. [2024-11-27 20:28:44,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-27 20:28:44,034 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:44,034 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:28:44,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-27 20:28:44,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:44,235 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:28:44,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:44,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2019826257, now seen corresponding path program 1 times [2024-11-27 20:28:44,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:44,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236202443] [2024-11-27 20:28:44,236 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:44,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:44,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1972 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-27 20:28:44,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:28:44,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236202443] [2024-11-27 20:28:44,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236202443] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:44,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521540484] [2024-11-27 20:28:44,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:28:44,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:44,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:44,962 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:44,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-27 20:28:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:28:45,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:28:45,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 1972 backedges. 336 proven. 232 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-27 20:28:47,028 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:28:47,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521540484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:28:47,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:28:47,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 25 [2024-11-27 20:28:47,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99351017] [2024-11-27 20:28:47,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:28:47,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-27 20:28:47,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:28:47,161 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-27 20:28:47,161 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=646, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:28:47,162 INFO L87 Difference]: Start difference. First operand 754 states and 829 transitions. Second operand has 26 states, 25 states have (on average 23.68) internal successors, (592), 26 states have internal predecessors, (592), 10 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 10 states have call predecessors, (54), 10 states have call successors, (54) [2024-11-27 20:28:51,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:28:51,828 INFO L93 Difference]: Finished difference Result 754 states and 829 transitions. [2024-11-27 20:28:51,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:28:51,829 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 23.68) internal successors, (592), 26 states have internal predecessors, (592), 10 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 10 states have call predecessors, (54), 10 states have call successors, (54) Word has length 430 [2024-11-27 20:28:51,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:28:51,832 INFO L225 Difference]: With dead ends: 754 [2024-11-27 20:28:51,832 INFO L226 Difference]: Without dead ends: 750 [2024-11-27 20:28:51,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 426 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=375, Invalid=1517, Unknown=0, NotChecked=0, Total=1892 [2024-11-27 20:28:51,833 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 656 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 3506 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 3564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:28:51,833 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 671 Invalid, 3564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3506 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-27 20:28:51,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-27 20:28:51,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2024-11-27 20:28:51,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 669 states have (on average 1.0582959641255605) internal successors, (708), 691 states have internal predecessors, (708), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-27 20:28:51,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 822 transitions. [2024-11-27 20:28:51,934 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 822 transitions. Word has length 430 [2024-11-27 20:28:51,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:28:51,934 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 822 transitions. [2024-11-27 20:28:51,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 23.68) internal successors, (592), 26 states have internal predecessors, (592), 10 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 10 states have call predecessors, (54), 10 states have call successors, (54) [2024-11-27 20:28:51,935 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 822 transitions. [2024-11-27 20:28:51,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2024-11-27 20:28:51,937 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:28:51,937 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1] [2024-11-27 20:28:51,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2024-11-27 20:28:52,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-27 20:28:52,142 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:28:52,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:28:52,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1208994085, now seen corresponding path program 2 times [2024-11-27 20:28:52,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:28:52,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67338205] [2024-11-27 20:28:52,142 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:28:52,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:28:52,204 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:28:52,204 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:28:52,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1089381423] [2024-11-27 20:28:52,206 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:28:52,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:28:52,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:28:52,209 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:28:52,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-27 20:28:52,361 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:28:52,362 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:28:52,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-27 20:28:52,370 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:28:55,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2262 backedges. 0 proven. 750 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-27 20:28:55,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:29:03,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:29:03,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67338205] [2024-11-27 20:29:03,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:29:03,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089381423] [2024-11-27 20:29:03,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089381423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:29:03,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:29:03,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2024-11-27 20:29:03,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457226140] [2024-11-27 20:29:03,808 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:29:03,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 20:29:03,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:29:03,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 20:29:03,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=558, Unknown=2, NotChecked=0, Total=702 [2024-11-27 20:29:03,810 INFO L87 Difference]: Start difference. First operand 750 states and 822 transitions. Second operand has 23 states, 22 states have (on average 13.954545454545455) internal successors, (307), 23 states have internal predecessors, (307), 6 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-27 20:29:08,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:29:08,544 INFO L93 Difference]: Finished difference Result 812 states and 905 transitions. [2024-11-27 20:29:08,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-27 20:29:08,545 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 13.954545454545455) internal successors, (307), 23 states have internal predecessors, (307), 6 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 444 [2024-11-27 20:29:08,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:29:08,547 INFO L225 Difference]: With dead ends: 812 [2024-11-27 20:29:08,548 INFO L226 Difference]: Without dead ends: 810 [2024-11-27 20:29:08,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=142, Invalid=558, Unknown=2, NotChecked=0, Total=702 [2024-11-27 20:29:08,548 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 192 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 8196 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 8200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:29:08,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 995 Invalid, 8200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8196 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-27 20:29:08,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2024-11-27 20:29:08,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 750. [2024-11-27 20:29:08,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 669 states have (on average 1.055306427503737) internal successors, (706), 691 states have internal predecessors, (706), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-27 20:29:08,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 820 transitions. [2024-11-27 20:29:08,618 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 820 transitions. Word has length 444 [2024-11-27 20:29:08,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:29:08,618 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 820 transitions. [2024-11-27 20:29:08,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 13.954545454545455) internal successors, (307), 23 states have internal predecessors, (307), 6 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2024-11-27 20:29:08,619 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 820 transitions. [2024-11-27 20:29:08,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2024-11-27 20:29:08,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:29:08,622 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:29:08,632 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-27 20:29:08,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:29:08,826 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr95ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:29:08,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:29:08,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1045229252, now seen corresponding path program 1 times [2024-11-27 20:29:08,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:29:08,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889320261] [2024-11-27 20:29:08,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:08,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:29:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-27 20:29:08,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1565862072] [2024-11-27 20:29:08,884 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:29:08,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:29:08,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:29:08,886 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:29:08,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-27 20:29:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:29:09,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 20:29:09,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:29:11,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-27 20:29:11,068 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:29:15,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 0 proven. 568 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-27 20:29:15,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:29:15,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889320261] [2024-11-27 20:29:15,098 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:29:15,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565862072] [2024-11-27 20:29:15,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565862072] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:29:15,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-27 20:29:15,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2024-11-27 20:29:15,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214482492] [2024-11-27 20:29:15,098 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-27 20:29:15,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-27 20:29:15,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:29:15,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-27 20:29:15,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=534, Unknown=0, NotChecked=0, Total=756 [2024-11-27 20:29:15,101 INFO L87 Difference]: Start difference. First operand 750 states and 820 transitions. Second operand has 28 states, 27 states have (on average 23.11111111111111) internal successors, (624), 28 states have internal predecessors, (624), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) [2024-11-27 20:29:27,586 WARN L286 SmtUtils]: Spent 11.27s on a formula simplification. DAG size of input: 91 DAG size of output: 80 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-27 20:29:28,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:29:30,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:29:35,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:29:39,823 WARN L539 Checker$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 20:29:44,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:29:46,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:29:54,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:29:56,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:01,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:07,537 WARN L539 Checker$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 20:30:09,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:13,527 WARN L539 Checker$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 20:30:16,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:20,327 WARN L539 Checker$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 20:30:24,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:27,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:31,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:35,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:38,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:41,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:45,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:48,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:50,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:54,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.64s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:30:58,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:31:06,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:31:13,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:31:17,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:31:20,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:31:23,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:31:26,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:31:28,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:31:33,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:31:41,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:31:46,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:31:50,712 WARN L539 Checker$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 20:31:54,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:32:00,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.37s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:32:06,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:32:09,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:32:13,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:32:16,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:32:20,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:32:25,119 WARN L539 Checker$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 20:32:30,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:32:35,742 WARN L539 Checker$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 20:32:39,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:32:43,989 WARN L539 Checker$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 20:32:46,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:32:50,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:09,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.71s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:14,344 WARN L539 Checker$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 20:33:20,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:21,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:28,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:33,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:38,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:40,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:46,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:48,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:54,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-27 20:33:58,644 WARN L539 Checker$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 20:34:03,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:03,561 INFO L93 Difference]: Finished difference Result 970 states and 1117 transitions. [2024-11-27 20:34:03,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-27 20:34:03,562 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 23.11111111111111) internal successors, (624), 28 states have internal predecessors, (624), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) Word has length 451 [2024-11-27 20:34:03,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:03,566 INFO L225 Difference]: With dead ends: 970 [2024-11-27 20:34:03,566 INFO L226 Difference]: Without dead ends: 906 [2024-11-27 20:34:03,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 913 GetRequests, 874 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 47.1s TimeCoverageRelationStatistics Valid=496, Invalid=1139, Unknown=5, NotChecked=0, Total=1640 [2024-11-27 20:34:03,567 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 507 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 4568 mSolverCounterSat, 36 mSolverCounterUnsat, 28 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 243.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 2359 SdHoareTripleChecker+Invalid, 4632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 4568 IncrementalHoareTripleChecker+Invalid, 28 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 244.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:03,567 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 2359 Invalid, 4632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 4568 Invalid, 28 Unknown, 0 Unchecked, 244.1s Time] [2024-11-27 20:34:03,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2024-11-27 20:34:03,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 725. [2024-11-27 20:34:03,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 645 states have (on average 1.0651162790697675) internal successors, (687), 667 states have internal predecessors, (687), 56 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-27 20:34:03,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 799 transitions. [2024-11-27 20:34:03,687 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 799 transitions. Word has length 451 [2024-11-27 20:34:03,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:03,688 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 799 transitions. [2024-11-27 20:34:03,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 23.11111111111111) internal successors, (624), 28 states have internal predecessors, (624), 10 states have call successors, (56), 1 states have call predecessors, (56), 1 states have return successors, (56), 10 states have call predecessors, (56), 10 states have call successors, (56) [2024-11-27 20:34:03,688 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 799 transitions. [2024-11-27 20:34:03,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 488 [2024-11-27 20:34:03,691 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:03,691 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:03,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Ended with exit code 0 [2024-11-27 20:34:03,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:03,896 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:34:03,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:03,896 INFO L85 PathProgramCache]: Analyzing trace with hash -698022791, now seen corresponding path program 5 times [2024-11-27 20:34:03,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:03,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103341909] [2024-11-27 20:34:03,896 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:34:03,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:04,023 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-27 20:34:04,023 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:34:04,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197495863] [2024-11-27 20:34:04,025 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-27 20:34:04,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:04,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:04,027 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:04,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-27 20:34:04,305 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2024-11-27 20:34:04,305 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:04,309 INFO L256 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-27 20:34:04,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:06,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2720 backedges. 0 proven. 860 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 20:34:06,841 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:07,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:07,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103341909] [2024-11-27 20:34:07,020 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:34:07,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197495863] [2024-11-27 20:34:07,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197495863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:07,020 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:07,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-11-27 20:34:07,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526045783] [2024-11-27 20:34:07,020 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:07,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 20:34:07,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:07,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:34:07,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:34:07,022 INFO L87 Difference]: Start difference. First operand 725 states and 799 transitions. Second operand has 21 states, 20 states have (on average 16.75) internal successors, (335), 21 states have internal predecessors, (335), 7 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2024-11-27 20:34:11,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:11,012 INFO L93 Difference]: Finished difference Result 790 states and 880 transitions. [2024-11-27 20:34:11,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:34:11,013 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 16.75) internal successors, (335), 21 states have internal predecessors, (335), 7 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) Word has length 487 [2024-11-27 20:34:11,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:11,015 INFO L225 Difference]: With dead ends: 790 [2024-11-27 20:34:11,015 INFO L226 Difference]: Without dead ends: 789 [2024-11-27 20:34:11,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-11-27 20:34:11,015 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 112 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 8181 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 8186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:11,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 945 Invalid, 8186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8181 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-27 20:34:11,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2024-11-27 20:34:11,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 734. [2024-11-27 20:34:11,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 653 states have (on average 1.0643185298621747) internal successors, (695), 675 states have internal predecessors, (695), 57 states have call successors, (57), 1 states have call predecessors, (57), 1 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-27 20:34:11,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 809 transitions. [2024-11-27 20:34:11,134 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 809 transitions. Word has length 487 [2024-11-27 20:34:11,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:11,135 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 809 transitions. [2024-11-27 20:34:11,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 16.75) internal successors, (335), 21 states have internal predecessors, (335), 7 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 7 states have call predecessors, (31), 7 states have call successors, (31) [2024-11-27 20:34:11,135 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 809 transitions. [2024-11-27 20:34:11,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2024-11-27 20:34:11,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:11,139 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:11,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-27 20:34:11,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:11,340 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:34:11,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:11,341 INFO L85 PathProgramCache]: Analyzing trace with hash -784998213, now seen corresponding path program 2 times [2024-11-27 20:34:11,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:11,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111749761] [2024-11-27 20:34:11,341 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:34:11,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:11,402 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:34:11,402 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:34:11,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1151649031] [2024-11-27 20:34:11,405 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:34:11,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:11,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:11,407 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:11,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-27 20:34:11,610 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-27 20:34:11,610 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:34:11,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-27 20:34:11,620 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:34:14,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2720 backedges. 0 proven. 860 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-27 20:34:14,941 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:34:15,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:34:15,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111749761] [2024-11-27 20:34:15,711 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-27 20:34:15,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151649031] [2024-11-27 20:34:15,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151649031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:34:15,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:34:15,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2024-11-27 20:34:15,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34978083] [2024-11-27 20:34:15,712 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-27 20:34:15,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-27 20:34:15,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:34:15,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-27 20:34:15,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:34:15,714 INFO L87 Difference]: Start difference. First operand 734 states and 809 transitions. Second operand has 22 states, 21 states have (on average 16.047619047619047) internal successors, (337), 22 states have internal predecessors, (337), 6 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) [2024-11-27 20:34:19,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:34:19,970 INFO L93 Difference]: Finished difference Result 792 states and 879 transitions. [2024-11-27 20:34:19,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-27 20:34:19,971 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 16.047619047619047) internal successors, (337), 22 states have internal predecessors, (337), 6 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) Word has length 489 [2024-11-27 20:34:19,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:34:19,973 INFO L225 Difference]: With dead ends: 792 [2024-11-27 20:34:19,973 INFO L226 Difference]: Without dead ends: 785 [2024-11-27 20:34:19,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 562 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2024-11-27 20:34:19,974 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 51 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 7629 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 7635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 7629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:34:19,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 945 Invalid, 7635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 7629 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-27 20:34:19,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2024-11-27 20:34:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 783. [2024-11-27 20:34:20,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 783 states, 700 states have (on average 1.0757142857142856) internal successors, (753), 722 states have internal predecessors, (753), 59 states have call successors, (59), 1 states have call predecessors, (59), 1 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-27 20:34:20,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 871 transitions. [2024-11-27 20:34:20,136 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 871 transitions. Word has length 489 [2024-11-27 20:34:20,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:34:20,137 INFO L471 AbstractCegarLoop]: Abstraction has 783 states and 871 transitions. [2024-11-27 20:34:20,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 16.047619047619047) internal successors, (337), 22 states have internal predecessors, (337), 6 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 6 states have call predecessors, (31), 6 states have call successors, (31) [2024-11-27 20:34:20,137 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 871 transitions. [2024-11-27 20:34:20,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2024-11-27 20:34:20,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:34:20,140 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:34:20,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2024-11-27 20:34:20,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:20,345 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 135 more)] === [2024-11-27 20:34:20,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:34:20,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1530967293, now seen corresponding path program 3 times [2024-11-27 20:34:20,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:34:20,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488031670] [2024-11-27 20:34:20,345 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:34:20,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:34:20,415 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2024-11-27 20:34:20,415 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-27 20:34:20,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264365233] [2024-11-27 20:34:20,422 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-27 20:34:20,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:34:20,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:34:20,424 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:34:20,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_157c38f8-023e-4576-9e48-f37cbcee9a8d/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-27 20:38:00,865 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-27 20:38:00,865 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:38:00,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-27 20:38:00,873 INFO L279 TraceCheckSpWp]: Computing forward predicates...