./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench/cohendiv-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_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/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_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/nla-digbench/cohendiv-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/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_cb434bac-522b-4363-92d7-6adeba35052a/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 601ddeb38cc85433f6271611bfd2617c2fcbf2b89119dbe2c319aedc14aa3b17 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:47:02,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:47:02,909 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 04:47:02,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:47:02,915 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:47:02,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:47:02,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:47:02,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:47:02,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:47:02,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:47:02,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:47:02,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:47:02,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:47:02,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:47:02,941 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:47:02,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:47:02,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:47:02,942 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:47:02,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:47:02,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:47:02,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:47:02,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:47:02,942 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:47:02,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:47:02,943 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 04:47:02,943 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:47:02,943 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:47:02,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:47:02,943 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:47:02,943 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:47:02,943 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:47:02,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:02,943 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:02,943 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:02,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:02,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:47:02,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:47:02,944 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:47:02,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:47:02,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:02,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:47:02,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:47:02,944 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:47:02,944 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:47:02,944 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:47:02,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:47:02,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:47:02,945 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:47:02,945 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:47:02,945 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:47:02,945 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_cb434bac-522b-4363-92d7-6adeba35052a/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 -> 601ddeb38cc85433f6271611bfd2617c2fcbf2b89119dbe2c319aedc14aa3b17 [2024-11-28 04:47:03,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:47:03,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:47:03,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:47:03,240 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:47:03,240 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:47:03,243 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/nla-digbench/cohendiv-ll.c [2024-11-28 04:47:06,280 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/data/73d91173c/29f71432f6044224b76d94a29f69f36d/FLAGd485ab44f [2024-11-28 04:47:06,544 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:47:06,545 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/sv-benchmarks/c/nla-digbench/cohendiv-ll.c [2024-11-28 04:47:06,555 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/data/73d91173c/29f71432f6044224b76d94a29f69f36d/FLAGd485ab44f [2024-11-28 04:47:06,850 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/data/73d91173c/29f71432f6044224b76d94a29f69f36d [2024-11-28 04:47:06,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:47:06,856 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:47:06,858 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:06,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:47:06,864 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:47:06,865 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:06" (1/1) ... [2024-11-28 04:47:06,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd65dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:06, skipping insertion in model container [2024-11-28 04:47:06,868 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:47:06" (1/1) ... [2024-11-28 04:47:06,885 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:47:07,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:07,105 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:47:07,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:47:07,154 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:47:07,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07 WrapperNode [2024-11-28 04:47:07,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:47:07,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:07,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:47:07,158 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:47:07,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,179 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,207 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2024-11-28 04:47:07,208 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:47:07,209 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:47:07,209 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:47:07,210 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:47:07,219 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,221 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,244 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 04:47:07,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,245 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,249 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,252 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:47:07,265 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:47:07,266 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:47:07,266 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:47:07,269 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (1/1) ... [2024-11-28 04:47:07,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:47:07,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:07,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:47:07,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:47:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:47:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:47:07,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:47:07,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:47:07,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 04:47:07,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 04:47:07,417 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:47:07,419 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:47:07,916 INFO L? ?]: Removed 64 outVars from TransFormulas that were not future-live. [2024-11-28 04:47:07,916 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:47:07,937 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:47:07,937 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 04:47:07,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:07 BoogieIcfgContainer [2024-11-28 04:47:07,938 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:47:07,942 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:47:07,942 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:47:07,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:47:07,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:47:06" (1/3) ... [2024-11-28 04:47:07,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224388fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:07, skipping insertion in model container [2024-11-28 04:47:07,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:47:07" (2/3) ... [2024-11-28 04:47:07,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224388fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:47:07, skipping insertion in model container [2024-11-28 04:47:07,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:47:07" (3/3) ... [2024-11-28 04:47:07,952 INFO L128 eAbstractionObserver]: Analyzing ICFG cohendiv-ll.c [2024-11-28 04:47:07,976 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:47:07,978 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG cohendiv-ll.c that has 2 procedures, 83 locations, 1 initial locations, 2 loop locations, and 30 error locations. [2024-11-28 04:47:08,056 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:47:08,076 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;@c70a81d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:47:08,076 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-28 04:47:08,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-28 04:47:08,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 04:47:08,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:08,087 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 04:47:08,087 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:08,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:08,092 INFO L85 PathProgramCache]: Analyzing trace with hash 28693835, now seen corresponding path program 1 times [2024-11-28 04:47:08,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:08,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107119284] [2024-11-28 04:47:08,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:08,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:47:08,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:08,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107119284] [2024-11-28 04:47:08,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107119284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:08,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:08,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:47:08,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817065379] [2024-11-28 04:47:08,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:08,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:47:08,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:08,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:47:08,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:47:08,278 INFO L87 Difference]: Start difference. First operand has 83 states, 44 states have (on average 1.8636363636363635) internal successors, (82), 74 states have internal predecessors, (82), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:47:08,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:08,314 INFO L93 Difference]: Finished difference Result 162 states and 194 transitions. [2024-11-28 04:47:08,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:47:08,316 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-28 04:47:08,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:08,324 INFO L225 Difference]: With dead ends: 162 [2024-11-28 04:47:08,324 INFO L226 Difference]: Without dead ends: 76 [2024-11-28 04:47:08,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:47:08,333 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:08,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:47:08,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-28 04:47:08,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-28 04:47:08,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 39 states have (on average 1.794871794871795) internal successors, (70), 68 states have internal predecessors, (70), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:47:08,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2024-11-28 04:47:08,394 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 5 [2024-11-28 04:47:08,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:08,396 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2024-11-28 04:47:08,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:47:08,397 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2024-11-28 04:47:08,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-28 04:47:08,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:08,397 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 04:47:08,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 04:47:08,398 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:08,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:08,399 INFO L85 PathProgramCache]: Analyzing trace with hash 28695757, now seen corresponding path program 1 times [2024-11-28 04:47:08,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:08,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168308446] [2024-11-28 04:47:08,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:08,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:08,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [195110335] [2024-11-28 04:47:08,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:08,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:08,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:08,420 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:08,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:47:08,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:08,479 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:47:08,482 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:47:08,503 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:08,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:08,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168308446] [2024-11-28 04:47:08,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:08,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195110335] [2024-11-28 04:47:08,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195110335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:08,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:08,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:47:08,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708312567] [2024-11-28 04:47:08,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:08,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:08,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:08,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:08,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:08,507 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:47:08,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:08,607 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2024-11-28 04:47:08,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:08,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-28 04:47:08,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:08,610 INFO L225 Difference]: With dead ends: 99 [2024-11-28 04:47:08,610 INFO L226 Difference]: Without dead ends: 97 [2024-11-28 04:47:08,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:08,612 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 18 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:08,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 139 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:08,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-11-28 04:47:08,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 78. [2024-11-28 04:47:08,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 41 states have (on average 1.7560975609756098) internal successors, (72), 70 states have internal predecessors, (72), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 04:47:08,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2024-11-28 04:47:08,625 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 5 [2024-11-28 04:47:08,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:08,626 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2024-11-28 04:47:08,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:47:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2024-11-28 04:47:08,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:47:08,627 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:08,627 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:08,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:08,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:08,831 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:08,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:08,832 INFO L85 PathProgramCache]: Analyzing trace with hash -451995786, now seen corresponding path program 1 times [2024-11-28 04:47:08,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:08,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813687637] [2024-11-28 04:47:08,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:08,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:08,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1951770860] [2024-11-28 04:47:08,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:08,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:08,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:08,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:08,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:47:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:08,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:47:08,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:09,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:47:09,026 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:09,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:09,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813687637] [2024-11-28 04:47:09,027 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:09,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951770860] [2024-11-28 04:47:09,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951770860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:09,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:09,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:47:09,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806903488] [2024-11-28 04:47:09,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:09,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:09,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:09,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:09,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:09,029 INFO L87 Difference]: Start difference. First operand 78 states and 84 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:47:09,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:09,223 INFO L93 Difference]: Finished difference Result 134 states and 155 transitions. [2024-11-28 04:47:09,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:09,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-11-28 04:47:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:09,229 INFO L225 Difference]: With dead ends: 134 [2024-11-28 04:47:09,229 INFO L226 Difference]: Without dead ends: 128 [2024-11-28 04:47:09,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:09,230 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 44 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:09,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 114 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:47:09,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-28 04:47:09,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 108. [2024-11-28 04:47:09,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 65 states have (on average 1.7538461538461538) internal successors, (114), 94 states have internal predecessors, (114), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:47:09,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 138 transitions. [2024-11-28 04:47:09,258 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 138 transitions. Word has length 12 [2024-11-28 04:47:09,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:09,258 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 138 transitions. [2024-11-28 04:47:09,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:47:09,259 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 138 transitions. [2024-11-28 04:47:09,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 04:47:09,260 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:09,260 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:09,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:47:09,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:09,461 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:09,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:09,462 INFO L85 PathProgramCache]: Analyzing trace with hash -576251656, now seen corresponding path program 1 times [2024-11-28 04:47:09,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:09,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114549379] [2024-11-28 04:47:09,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:09,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:09,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:09,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1928882036] [2024-11-28 04:47:09,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:09,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:09,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:09,495 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:09,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:47:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:09,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:47:09,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:09,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:47:09,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:09,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:09,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114549379] [2024-11-28 04:47:09,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:09,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928882036] [2024-11-28 04:47:09,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928882036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:09,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:09,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:09,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332250298] [2024-11-28 04:47:09,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:09,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:47:09,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:09,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:47:09,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:09,700 INFO L87 Difference]: Start difference. First operand 108 states and 138 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:47:09,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:09,938 INFO L93 Difference]: Finished difference Result 127 states and 145 transitions. [2024-11-28 04:47:09,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:47:09,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-11-28 04:47:09,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:09,940 INFO L225 Difference]: With dead ends: 127 [2024-11-28 04:47:09,940 INFO L226 Difference]: Without dead ends: 124 [2024-11-28 04:47:09,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:09,941 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 150 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:09,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 114 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:47:09,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-28 04:47:09,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 109. [2024-11-28 04:47:09,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 66 states have (on average 1.7121212121212122) internal successors, (113), 95 states have internal predecessors, (113), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:47:09,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 137 transitions. [2024-11-28 04:47:09,956 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 137 transitions. Word has length 14 [2024-11-28 04:47:09,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:09,956 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 137 transitions. [2024-11-28 04:47:09,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:47:09,956 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 137 transitions. [2024-11-28 04:47:09,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-28 04:47:09,957 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:09,957 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:09,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:47:10,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-28 04:47:10,158 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:10,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:10,158 INFO L85 PathProgramCache]: Analyzing trace with hash -683932092, now seen corresponding path program 1 times [2024-11-28 04:47:10,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:10,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153007124] [2024-11-28 04:47:10,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:10,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:10,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453312676] [2024-11-28 04:47:10,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:10,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:10,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:10,187 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:10,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 04:47:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:10,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:47:10,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:47:10,303 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:10,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:10,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153007124] [2024-11-28 04:47:10,304 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:10,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453312676] [2024-11-28 04:47:10,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453312676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:10,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:10,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:10,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060767513] [2024-11-28 04:47:10,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:10,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:47:10,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:10,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:47:10,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:10,309 INFO L87 Difference]: Start difference. First operand 109 states and 137 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:47:10,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:10,530 INFO L93 Difference]: Finished difference Result 127 states and 142 transitions. [2024-11-28 04:47:10,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:47:10,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-11-28 04:47:10,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:10,533 INFO L225 Difference]: With dead ends: 127 [2024-11-28 04:47:10,534 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 04:47:10,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:10,536 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 146 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:10,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 117 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:47:10,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 04:47:10,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 106. [2024-11-28 04:47:10,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 63 states have (on average 1.6984126984126984) internal successors, (107), 92 states have internal predecessors, (107), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 04:47:10,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 131 transitions. [2024-11-28 04:47:10,560 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 131 transitions. Word has length 15 [2024-11-28 04:47:10,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:10,564 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 131 transitions. [2024-11-28 04:47:10,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 04:47:10,564 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 131 transitions. [2024-11-28 04:47:10,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-28 04:47:10,565 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:10,565 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:10,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:10,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:10,766 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:10,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:10,767 INFO L85 PathProgramCache]: Analyzing trace with hash 436128784, now seen corresponding path program 1 times [2024-11-28 04:47:10,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:10,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701792548] [2024-11-28 04:47:10,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:10,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:10,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:10,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1599563547] [2024-11-28 04:47:10,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:10,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:10,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:10,808 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:10,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 04:47:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:10,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:47:10,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:47:10,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:10,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:10,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701792548] [2024-11-28 04:47:10,901 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:10,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599563547] [2024-11-28 04:47:10,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599563547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:10,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:10,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:10,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606442426] [2024-11-28 04:47:10,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:10,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:47:10,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:10,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:47:10,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:10,903 INFO L87 Difference]: Start difference. First operand 106 states and 131 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:11,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:11,127 INFO L93 Difference]: Finished difference Result 170 states and 236 transitions. [2024-11-28 04:47:11,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:47:11,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2024-11-28 04:47:11,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:11,130 INFO L225 Difference]: With dead ends: 170 [2024-11-28 04:47:11,130 INFO L226 Difference]: Without dead ends: 165 [2024-11-28 04:47:11,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:11,131 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 99 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:11,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 66 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:47:11,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-28 04:47:11,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 149. [2024-11-28 04:47:11,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 98 states have (on average 1.6734693877551021) internal successors, (164), 127 states have internal predecessors, (164), 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) [2024-11-28 04:47:11,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 204 transitions. [2024-11-28 04:47:11,179 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 204 transitions. Word has length 22 [2024-11-28 04:47:11,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:11,181 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 204 transitions. [2024-11-28 04:47:11,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:11,182 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 204 transitions. [2024-11-28 04:47:11,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-28 04:47:11,182 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:11,183 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:11,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 04:47:11,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:11,383 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:11,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:11,384 INFO L85 PathProgramCache]: Analyzing trace with hash 635090494, now seen corresponding path program 1 times [2024-11-28 04:47:11,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:11,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520263371] [2024-11-28 04:47:11,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:11,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:11,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276697321] [2024-11-28 04:47:11,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:11,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:11,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:11,409 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:11,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 04:47:11,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:11,473 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:47:11,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:11,549 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 04:47:11,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:11,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:11,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520263371] [2024-11-28 04:47:11,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:11,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276697321] [2024-11-28 04:47:11,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276697321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:11,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:11,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:11,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818348732] [2024-11-28 04:47:11,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:11,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:47:11,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:11,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:47:11,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:11,551 INFO L87 Difference]: Start difference. First operand 149 states and 204 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:11,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:11,784 INFO L93 Difference]: Finished difference Result 168 states and 227 transitions. [2024-11-28 04:47:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:47:11,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2024-11-28 04:47:11,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:11,787 INFO L225 Difference]: With dead ends: 168 [2024-11-28 04:47:11,787 INFO L226 Difference]: Without dead ends: 165 [2024-11-28 04:47:11,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:11,788 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 97 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:11,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 66 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:47:11,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-28 04:47:11,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 150. [2024-11-28 04:47:11,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 99 states have (on average 1.6262626262626263) internal successors, (161), 128 states have internal predecessors, (161), 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) [2024-11-28 04:47:11,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 201 transitions. [2024-11-28 04:47:11,832 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 201 transitions. Word has length 23 [2024-11-28 04:47:11,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:11,832 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 201 transitions. [2024-11-28 04:47:11,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 04:47:11,833 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 201 transitions. [2024-11-28 04:47:11,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-28 04:47:11,834 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:11,834 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] [2024-11-28 04:47:11,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:12,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:12,035 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:12,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:12,035 INFO L85 PathProgramCache]: Analyzing trace with hash 658324803, now seen corresponding path program 1 times [2024-11-28 04:47:12,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:12,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531666281] [2024-11-28 04:47:12,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:12,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:47:12,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:12,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531666281] [2024-11-28 04:47:12,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531666281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:12,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:12,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:12,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744522992] [2024-11-28 04:47:12,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:12,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:47:12,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:12,300 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:47:12,300 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:12,300 INFO L87 Difference]: Start difference. First operand 150 states and 201 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:47:12,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:12,599 INFO L93 Difference]: Finished difference Result 183 states and 230 transitions. [2024-11-28 04:47:12,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:47:12,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-11-28 04:47:12,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:12,601 INFO L225 Difference]: With dead ends: 183 [2024-11-28 04:47:12,601 INFO L226 Difference]: Without dead ends: 181 [2024-11-28 04:47:12,601 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:12,602 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 111 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:12,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 64 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:47:12,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-28 04:47:12,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 152. [2024-11-28 04:47:12,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 101 states have (on average 1.5940594059405941) internal successors, (161), 130 states have internal predecessors, (161), 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) [2024-11-28 04:47:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 201 transitions. [2024-11-28 04:47:12,630 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 201 transitions. Word has length 43 [2024-11-28 04:47:12,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:12,630 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 201 transitions. [2024-11-28 04:47:12,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:47:12,631 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 201 transitions. [2024-11-28 04:47:12,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-28 04:47:12,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:12,632 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] [2024-11-28 04:47:12,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 04:47:12,632 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:12,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:12,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1066767494, now seen corresponding path program 1 times [2024-11-28 04:47:12,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:12,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135453109] [2024-11-28 04:47:12,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:12,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:12,735 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:47:12,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:12,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135453109] [2024-11-28 04:47:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135453109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:12,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:12,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:12,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280090490] [2024-11-28 04:47:12,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:12,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:47:12,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:12,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:47:12,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:12,737 INFO L87 Difference]: Start difference. First operand 152 states and 201 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:47:12,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:12,967 INFO L93 Difference]: Finished difference Result 183 states and 226 transitions. [2024-11-28 04:47:12,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:47:12,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2024-11-28 04:47:12,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:12,969 INFO L225 Difference]: With dead ends: 183 [2024-11-28 04:47:12,969 INFO L226 Difference]: Without dead ends: 181 [2024-11-28 04:47:12,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:12,970 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 108 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:12,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 66 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:47:12,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2024-11-28 04:47:12,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 154. [2024-11-28 04:47:12,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 103 states have (on average 1.5631067961165048) internal successors, (161), 132 states have internal predecessors, (161), 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) [2024-11-28 04:47:12,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2024-11-28 04:47:12,997 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 44 [2024-11-28 04:47:12,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:12,998 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2024-11-28 04:47:12,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:47:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2024-11-28 04:47:12,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 04:47:12,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:12,999 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] [2024-11-28 04:47:12,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 04:47:13,000 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:13,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:13,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1333625106, now seen corresponding path program 1 times [2024-11-28 04:47:13,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:13,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117020047] [2024-11-28 04:47:13,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:13,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:13,120 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:47:13,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:13,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117020047] [2024-11-28 04:47:13,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117020047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:13,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:13,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:47:13,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347678118] [2024-11-28 04:47:13,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:13,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 04:47:13,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:13,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:47:13,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:47:13,121 INFO L87 Difference]: Start difference. First operand 154 states and 201 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:47:13,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:13,204 INFO L93 Difference]: Finished difference Result 159 states and 201 transitions. [2024-11-28 04:47:13,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:47:13,205 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 46 [2024-11-28 04:47:13,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:13,206 INFO L225 Difference]: With dead ends: 159 [2024-11-28 04:47:13,206 INFO L226 Difference]: Without dead ends: 158 [2024-11-28 04:47:13,207 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 [2024-11-28 04:47:13,207 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 13 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:13,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 122 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:13,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-28 04:47:13,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 154. [2024-11-28 04:47:13,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 103 states have (on average 1.5533980582524272) internal successors, (160), 132 states have internal predecessors, (160), 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) [2024-11-28 04:47:13,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 200 transitions. [2024-11-28 04:47:13,233 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 200 transitions. Word has length 46 [2024-11-28 04:47:13,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:13,233 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 200 transitions. [2024-11-28 04:47:13,233 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:47:13,233 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 200 transitions. [2024-11-28 04:47:13,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-28 04:47:13,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:13,234 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] [2024-11-28 04:47:13,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 04:47:13,236 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:13,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:13,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1333625148, now seen corresponding path program 1 times [2024-11-28 04:47:13,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:13,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787597615] [2024-11-28 04:47:13,237 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:13,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:13,477 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:47:13,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:13,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787597615] [2024-11-28 04:47:13,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787597615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:13,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:13,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:13,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520166871] [2024-11-28 04:47:13,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:13,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:47:13,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:13,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:47:13,478 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:13,479 INFO L87 Difference]: Start difference. First operand 154 states and 200 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:47:13,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:13,579 INFO L93 Difference]: Finished difference Result 154 states and 200 transitions. [2024-11-28 04:47:13,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:47:13,580 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 46 [2024-11-28 04:47:13,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:13,582 INFO L225 Difference]: With dead ends: 154 [2024-11-28 04:47:13,582 INFO L226 Difference]: Without dead ends: 153 [2024-11-28 04:47:13,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:13,584 INFO L435 NwaCegarLoop]: 40 mSDtfsCounter, 54 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:13,585 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 50 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:13,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-28 04:47:13,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2024-11-28 04:47:13,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 103 states have (on average 1.5145631067961165) internal successors, (156), 131 states have internal predecessors, (156), 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) [2024-11-28 04:47:13,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 196 transitions. [2024-11-28 04:47:13,603 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 196 transitions. Word has length 46 [2024-11-28 04:47:13,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:13,604 INFO L471 AbstractCegarLoop]: Abstraction has 153 states and 196 transitions. [2024-11-28 04:47:13,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-11-28 04:47:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 196 transitions. [2024-11-28 04:47:13,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 04:47:13,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:13,605 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] [2024-11-28 04:47:13,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 04:47:13,605 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:13,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:13,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1607294552, now seen corresponding path program 1 times [2024-11-28 04:47:13,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:13,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257719226] [2024-11-28 04:47:13,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:13,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:13,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:13,728 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:47:13,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:13,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257719226] [2024-11-28 04:47:13,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257719226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:13,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:13,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:47:13,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102293961] [2024-11-28 04:47:13,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:13,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:47:13,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:13,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:47:13,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:13,730 INFO L87 Difference]: Start difference. First operand 153 states and 196 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-28 04:47:13,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:13,869 INFO L93 Difference]: Finished difference Result 153 states and 196 transitions. [2024-11-28 04:47:13,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:47:13,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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 47 [2024-11-28 04:47:13,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:13,870 INFO L225 Difference]: With dead ends: 153 [2024-11-28 04:47:13,871 INFO L226 Difference]: Without dead ends: 152 [2024-11-28 04:47:13,871 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:47:13,871 INFO L435 NwaCegarLoop]: 61 mSDtfsCounter, 100 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:13,872 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 128 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:13,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-28 04:47:13,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-28 04:47:13,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 103 states have (on average 1.4951456310679612) internal successors, (154), 130 states have internal predecessors, (154), 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) [2024-11-28 04:47:13,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 194 transitions. [2024-11-28 04:47:13,889 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 194 transitions. Word has length 47 [2024-11-28 04:47:13,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:13,892 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 194 transitions. [2024-11-28 04:47:13,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 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) [2024-11-28 04:47:13,893 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 194 transitions. [2024-11-28 04:47:13,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-28 04:47:13,894 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:13,895 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] [2024-11-28 04:47:13,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 04:47:13,896 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:13,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:13,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1607293270, now seen corresponding path program 1 times [2024-11-28 04:47:13,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:13,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874432909] [2024-11-28 04:47:13,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:13,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:14,044 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:47:14,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:14,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874432909] [2024-11-28 04:47:14,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874432909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:14,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:14,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:47:14,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408394851] [2024-11-28 04:47:14,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:14,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:47:14,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:14,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:47:14,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:47:14,046 INFO L87 Difference]: Start difference. First operand 152 states and 194 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:47:14,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:14,619 INFO L93 Difference]: Finished difference Result 202 states and 251 transitions. [2024-11-28 04:47:14,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:47:14,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-11-28 04:47:14,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:14,621 INFO L225 Difference]: With dead ends: 202 [2024-11-28 04:47:14,621 INFO L226 Difference]: Without dead ends: 201 [2024-11-28 04:47:14,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:47:14,622 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 255 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:14,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 201 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:47:14,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-28 04:47:14,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 179. [2024-11-28 04:47:14,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 125 states have (on average 1.48) internal successors, (185), 152 states have internal predecessors, (185), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:47:14,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 235 transitions. [2024-11-28 04:47:14,642 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 235 transitions. Word has length 47 [2024-11-28 04:47:14,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:14,642 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 235 transitions. [2024-11-28 04:47:14,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:47:14,643 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 235 transitions. [2024-11-28 04:47:14,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 04:47:14,643 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:14,643 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] [2024-11-28 04:47:14,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 04:47:14,644 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:14,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:14,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1713476564, now seen corresponding path program 1 times [2024-11-28 04:47:14,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:14,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013649497] [2024-11-28 04:47:14,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:14,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:14,719 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:47:14,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:14,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013649497] [2024-11-28 04:47:14,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013649497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:14,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:14,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:14,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009095447] [2024-11-28 04:47:14,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:14,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:47:14,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:14,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:47:14,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:14,721 INFO L87 Difference]: Start difference. First operand 179 states and 235 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:47:14,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:14,945 INFO L93 Difference]: Finished difference Result 200 states and 248 transitions. [2024-11-28 04:47:14,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:47:14,946 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2024-11-28 04:47:14,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:14,947 INFO L225 Difference]: With dead ends: 200 [2024-11-28 04:47:14,947 INFO L226 Difference]: Without dead ends: 198 [2024-11-28 04:47:14,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:14,948 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 47 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:14,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 128 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:47:14,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-28 04:47:14,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 183. [2024-11-28 04:47:14,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 129 states have (on average 1.4651162790697674) internal successors, (189), 156 states have internal predecessors, (189), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-28 04:47:14,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 239 transitions. [2024-11-28 04:47:14,973 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 239 transitions. Word has length 48 [2024-11-28 04:47:14,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:14,973 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 239 transitions. [2024-11-28 04:47:14,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 04:47:14,973 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 239 transitions. [2024-11-28 04:47:14,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-28 04:47:14,975 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:14,975 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-28 04:47:14,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 04:47:14,976 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:14,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:14,976 INFO L85 PathProgramCache]: Analyzing trace with hash -569296708, now seen corresponding path program 1 times [2024-11-28 04:47:14,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:14,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650026188] [2024-11-28 04:47:14,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:14,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:15,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630912498] [2024-11-28 04:47:15,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:15,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:15,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:15,006 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:15,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 04:47:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:15,065 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:47:15,069 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:15,510 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:47:15,510 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:15,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:15,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650026188] [2024-11-28 04:47:15,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:15,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630912498] [2024-11-28 04:47:15,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630912498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:15,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:15,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:47:15,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165926548] [2024-11-28 04:47:15,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:15,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:47:15,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:15,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:47:15,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:47:15,512 INFO L87 Difference]: Start difference. First operand 183 states and 239 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:16,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:16,065 INFO L93 Difference]: Finished difference Result 274 states and 356 transitions. [2024-11-28 04:47:16,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:47:16,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2024-11-28 04:47:16,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:16,067 INFO L225 Difference]: With dead ends: 274 [2024-11-28 04:47:16,068 INFO L226 Difference]: Without dead ends: 265 [2024-11-28 04:47:16,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:47:16,068 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 195 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:16,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 125 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:47:16,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-28 04:47:16,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 245. [2024-11-28 04:47:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 181 states have (on average 1.430939226519337) internal successors, (259), 208 states have internal predecessors, (259), 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) [2024-11-28 04:47:16,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 329 transitions. [2024-11-28 04:47:16,104 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 329 transitions. Word has length 57 [2024-11-28 04:47:16,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:16,104 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 329 transitions. [2024-11-28 04:47:16,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:16,104 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 329 transitions. [2024-11-28 04:47:16,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 04:47:16,105 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:16,105 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-28 04:47:16,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 04:47:16,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 04:47:16,306 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:16,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:16,307 INFO L85 PathProgramCache]: Analyzing trace with hash -468328708, now seen corresponding path program 1 times [2024-11-28 04:47:16,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:16,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407650378] [2024-11-28 04:47:16,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:16,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:16,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1550683723] [2024-11-28 04:47:16,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:16,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:16,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:16,328 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:16,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 04:47:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:16,390 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:47:16,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:16,787 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:47:16,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:17,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:17,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407650378] [2024-11-28 04:47:17,298 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:17,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550683723] [2024-11-28 04:47:17,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550683723] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:17,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:17,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:47:17,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909999872] [2024-11-28 04:47:17,299 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:17,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:47:17,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:17,302 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:47:17,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:47:17,302 INFO L87 Difference]: Start difference. First operand 245 states and 329 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:17,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:17,787 INFO L93 Difference]: Finished difference Result 328 states and 433 transitions. [2024-11-28 04:47:17,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:47:17,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 58 [2024-11-28 04:47:17,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:17,790 INFO L225 Difference]: With dead ends: 328 [2024-11-28 04:47:17,791 INFO L226 Difference]: Without dead ends: 325 [2024-11-28 04:47:17,791 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:47:17,793 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 154 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:17,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 144 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:47:17,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-28 04:47:17,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 298. [2024-11-28 04:47:17,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 224 states have (on average 1.4196428571428572) internal successors, (318), 251 states have internal predecessors, (318), 45 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-28 04:47:17,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 408 transitions. [2024-11-28 04:47:17,830 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 408 transitions. Word has length 58 [2024-11-28 04:47:17,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:17,831 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 408 transitions. [2024-11-28 04:47:17,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 7 states have internal predecessors, (31), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 408 transitions. [2024-11-28 04:47:17,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:47:17,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:17,833 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-28 04:47:17,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:18,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:47:18,034 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:18,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:18,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1633288002, now seen corresponding path program 1 times [2024-11-28 04:47:18,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:18,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627376157] [2024-11-28 04:47:18,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:18,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:18,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:47:18,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:18,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627376157] [2024-11-28 04:47:18,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627376157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:18,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:18,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:47:18,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913706309] [2024-11-28 04:47:18,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:18,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:47:18,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:18,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:47:18,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:18,172 INFO L87 Difference]: Start difference. First operand 298 states and 408 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:18,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:18,760 INFO L93 Difference]: Finished difference Result 425 states and 583 transitions. [2024-11-28 04:47:18,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:47:18,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 59 [2024-11-28 04:47:18,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:18,763 INFO L225 Difference]: With dead ends: 425 [2024-11-28 04:47:18,763 INFO L226 Difference]: Without dead ends: 422 [2024-11-28 04:47:18,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:47:18,764 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 125 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:18,765 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 161 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:47:18,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-28 04:47:18,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 304. [2024-11-28 04:47:18,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 230 states have (on average 1.391304347826087) internal successors, (320), 255 states have internal predecessors, (320), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-28 04:47:18,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 414 transitions. [2024-11-28 04:47:18,803 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 414 transitions. Word has length 59 [2024-11-28 04:47:18,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:18,804 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 414 transitions. [2024-11-28 04:47:18,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:18,804 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 414 transitions. [2024-11-28 04:47:18,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-28 04:47:18,805 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:18,805 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] [2024-11-28 04:47:18,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 04:47:18,805 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:18,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:18,806 INFO L85 PathProgramCache]: Analyzing trace with hash -326892838, now seen corresponding path program 1 times [2024-11-28 04:47:18,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:18,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983809120] [2024-11-28 04:47:18,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:18,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:18,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [829652866] [2024-11-28 04:47:18,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:18,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:18,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:18,829 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:18,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 04:47:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:18,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:47:18,886 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:47:19,115 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:19,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:19,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983809120] [2024-11-28 04:47:19,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:19,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829652866] [2024-11-28 04:47:19,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829652866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:19,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:19,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:47:19,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2509986] [2024-11-28 04:47:19,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:19,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:47:19,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:19,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:47:19,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:47:19,117 INFO L87 Difference]: Start difference. First operand 304 states and 414 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:19,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:19,548 INFO L93 Difference]: Finished difference Result 319 states and 438 transitions. [2024-11-28 04:47:19,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:47:19,549 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 59 [2024-11-28 04:47:19,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:19,551 INFO L225 Difference]: With dead ends: 319 [2024-11-28 04:47:19,551 INFO L226 Difference]: Without dead ends: 315 [2024-11-28 04:47:19,552 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:47:19,554 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 123 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:19,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 120 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:47:19,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-28 04:47:19,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 300. [2024-11-28 04:47:19,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 230 states have (on average 1.3608695652173912) internal successors, (313), 251 states have internal predecessors, (313), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-28 04:47:19,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 407 transitions. [2024-11-28 04:47:19,602 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 407 transitions. Word has length 59 [2024-11-28 04:47:19,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:19,602 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 407 transitions. [2024-11-28 04:47:19,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 7 states have internal predecessors, (32), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:19,602 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 407 transitions. [2024-11-28 04:47:19,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:47:19,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:19,605 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-28 04:47:19,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 04:47:19,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:47:19,808 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:19,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:19,808 INFO L85 PathProgramCache]: Analyzing trace with hash 907679550, now seen corresponding path program 1 times [2024-11-28 04:47:19,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:19,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778535260] [2024-11-28 04:47:19,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:19,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:19,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348489243] [2024-11-28 04:47:19,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:19,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:19,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:19,829 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:19,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:47:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:19,888 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:47:19,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:20,236 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:47:20,237 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:24,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:24,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778535260] [2024-11-28 04:47:24,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:24,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348489243] [2024-11-28 04:47:24,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348489243] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:24,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:24,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:47:24,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594234762] [2024-11-28 04:47:24,532 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:24,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:47:24,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:24,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:47:24,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=81, Unknown=1, NotChecked=0, Total=110 [2024-11-28 04:47:24,533 INFO L87 Difference]: Start difference. First operand 300 states and 407 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:25,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:25,222 INFO L93 Difference]: Finished difference Result 323 states and 417 transitions. [2024-11-28 04:47:25,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:47:25,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 60 [2024-11-28 04:47:25,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:25,225 INFO L225 Difference]: With dead ends: 323 [2024-11-28 04:47:25,225 INFO L226 Difference]: Without dead ends: 316 [2024-11-28 04:47:25,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=53, Invalid=156, Unknown=1, NotChecked=0, Total=210 [2024-11-28 04:47:25,227 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 214 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:25,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 182 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:47:25,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-11-28 04:47:25,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 298. [2024-11-28 04:47:25,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 228 states have (on average 1.3464912280701755) internal successors, (307), 249 states have internal predecessors, (307), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-28 04:47:25,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 401 transitions. [2024-11-28 04:47:25,273 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 401 transitions. Word has length 60 [2024-11-28 04:47:25,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:25,274 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 401 transitions. [2024-11-28 04:47:25,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:25,274 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 401 transitions. [2024-11-28 04:47:25,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 04:47:25,275 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:25,275 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-28 04:47:25,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:25,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:25,475 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:25,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:25,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1543743308, now seen corresponding path program 1 times [2024-11-28 04:47:25,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:25,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372651945] [2024-11-28 04:47:25,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:25,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:25,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844084712] [2024-11-28 04:47:25,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:25,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:25,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:25,497 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:25,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:47:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:25,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:47:25,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:25,814 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-28 04:47:25,814 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:26,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:26,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372651945] [2024-11-28 04:47:26,007 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:26,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844084712] [2024-11-28 04:47:26,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844084712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:26,007 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:26,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 04:47:26,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194560266] [2024-11-28 04:47:26,008 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:26,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:47:26,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:26,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:47:26,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:47:26,009 INFO L87 Difference]: Start difference. First operand 298 states and 401 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:26,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:26,440 INFO L93 Difference]: Finished difference Result 482 states and 682 transitions. [2024-11-28 04:47:26,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:47:26,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 60 [2024-11-28 04:47:26,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:26,444 INFO L225 Difference]: With dead ends: 482 [2024-11-28 04:47:26,444 INFO L226 Difference]: Without dead ends: 478 [2024-11-28 04:47:26,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:47:26,446 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 143 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:26,447 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 167 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:47:26,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-28 04:47:26,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 386. [2024-11-28 04:47:26,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 300 states have (on average 1.3366666666666667) internal successors, (401), 321 states have internal predecessors, (401), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-28 04:47:26,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 527 transitions. [2024-11-28 04:47:26,504 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 527 transitions. Word has length 60 [2024-11-28 04:47:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:26,504 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 527 transitions. [2024-11-28 04:47:26,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-28 04:47:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 527 transitions. [2024-11-28 04:47:26,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 04:47:26,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:26,506 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-28 04:47:26,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:26,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2024-11-28 04:47:26,710 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:26,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:26,711 INFO L85 PathProgramCache]: Analyzing trace with hash -457504583, now seen corresponding path program 1 times [2024-11-28 04:47:26,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:26,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169808067] [2024-11-28 04:47:26,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:26,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:26,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:26,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169808067] [2024-11-28 04:47:26,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169808067] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:26,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230266449] [2024-11-28 04:47:26,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:26,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:26,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:26,835 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:26,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:47:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:26,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:47:26,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:26,991 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:26,991 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:27,179 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:27,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230266449] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:47:27,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:47:27,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-28 04:47:27,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814743589] [2024-11-28 04:47:27,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:27,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:47:27,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:27,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:47:27,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:47:27,181 INFO L87 Difference]: Start difference. First operand 386 states and 527 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-28 04:47:27,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:27,871 INFO L93 Difference]: Finished difference Result 614 states and 851 transitions. [2024-11-28 04:47:27,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:47:27,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 80 [2024-11-28 04:47:27,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:27,876 INFO L225 Difference]: With dead ends: 614 [2024-11-28 04:47:27,876 INFO L226 Difference]: Without dead ends: 612 [2024-11-28 04:47:27,877 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:47:27,878 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 204 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:27,878 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 275 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:47:27,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2024-11-28 04:47:27,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 517. [2024-11-28 04:47:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 404 states have (on average 1.3341584158415842) internal successors, (539), 424 states have internal predecessors, (539), 91 states have call successors, (91), 1 states have call predecessors, (91), 1 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-28 04:47:27,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 721 transitions. [2024-11-28 04:47:27,980 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 721 transitions. Word has length 80 [2024-11-28 04:47:27,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:27,981 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 721 transitions. [2024-11-28 04:47:27,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 7 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-28 04:47:27,981 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 721 transitions. [2024-11-28 04:47:27,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 04:47:27,982 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:27,982 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-28 04:47:27,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:28,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 04:47:28,188 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:28,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:28,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1297740092, now seen corresponding path program 1 times [2024-11-28 04:47:28,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:28,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519254096] [2024-11-28 04:47:28,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:28,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:28,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:28,325 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:28,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:28,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519254096] [2024-11-28 04:47:28,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519254096] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:28,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107683521] [2024-11-28 04:47:28,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:28,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:28,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:28,330 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:28,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:47:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:28,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:47:28,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:28,476 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:28,476 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:28,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107683521] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:47:28,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:47:28,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-11-28 04:47:28,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516055303] [2024-11-28 04:47:28,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:28,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:47:28,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:28,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:47:28,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:47:28,678 INFO L87 Difference]: Start difference. First operand 517 states and 721 transitions. Second operand has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-28 04:47:29,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:29,522 INFO L93 Difference]: Finished difference Result 629 states and 846 transitions. [2024-11-28 04:47:29,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:47:29,523 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) Word has length 81 [2024-11-28 04:47:29,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:29,526 INFO L225 Difference]: With dead ends: 629 [2024-11-28 04:47:29,526 INFO L226 Difference]: Without dead ends: 627 [2024-11-28 04:47:29,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:47:29,530 INFO L435 NwaCegarLoop]: 65 mSDtfsCounter, 691 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:29,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 309 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:47:29,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-28 04:47:29,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 519. [2024-11-28 04:47:29,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 407 states have (on average 1.28009828009828) internal successors, (521), 426 states have internal predecessors, (521), 91 states have call successors, (91), 1 states have call predecessors, (91), 1 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-28 04:47:29,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 703 transitions. [2024-11-28 04:47:29,603 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 703 transitions. Word has length 81 [2024-11-28 04:47:29,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:29,603 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 703 transitions. [2024-11-28 04:47:29,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.5) internal successors, (95), 11 states have internal predecessors, (95), 9 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (24), 9 states have call predecessors, (24), 9 states have call successors, (24) [2024-11-28 04:47:29,603 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 703 transitions. [2024-11-28 04:47:29,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 04:47:29,604 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:29,605 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-28 04:47:29,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:47:29,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 04:47:29,807 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:29,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:29,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1587709476, now seen corresponding path program 1 times [2024-11-28 04:47:29,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:29,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835927676] [2024-11-28 04:47:29,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:29,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:29,883 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:29,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:29,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835927676] [2024-11-28 04:47:29,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835927676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:29,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:29,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 04:47:29,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506093706] [2024-11-28 04:47:29,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:29,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:47:29,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:29,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:47:29,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:47:29,885 INFO L87 Difference]: Start difference. First operand 519 states and 703 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 04:47:30,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:30,109 INFO L93 Difference]: Finished difference Result 519 states and 703 transitions. [2024-11-28 04:47:30,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:47:30,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2024-11-28 04:47:30,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:30,112 INFO L225 Difference]: With dead ends: 519 [2024-11-28 04:47:30,112 INFO L226 Difference]: Without dead ends: 518 [2024-11-28 04:47:30,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:30,113 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 18 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:30,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 121 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:47:30,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-28 04:47:30,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2024-11-28 04:47:30,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 407 states have (on average 1.2702702702702702) internal successors, (517), 425 states have internal predecessors, (517), 91 states have call successors, (91), 1 states have call predecessors, (91), 1 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-28 04:47:30,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 699 transitions. [2024-11-28 04:47:30,172 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 699 transitions. Word has length 83 [2024-11-28 04:47:30,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:30,173 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 699 transitions. [2024-11-28 04:47:30,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 04:47:30,173 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 699 transitions. [2024-11-28 04:47:30,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:47:30,174 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:30,174 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-28 04:47:30,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 04:47:30,174 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:30,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:30,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1075412450, now seen corresponding path program 1 times [2024-11-28 04:47:30,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:30,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112525906] [2024-11-28 04:47:30,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:30,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:30,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:30,297 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:30,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:30,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112525906] [2024-11-28 04:47:30,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112525906] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:30,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59732468] [2024-11-28 04:47:30,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:30,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:30,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:30,300 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:30,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:47:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:30,362 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:47:30,364 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:30,557 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:30,557 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:47:30,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59732468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:30,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:30,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-28 04:47:30,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195914566] [2024-11-28 04:47:30,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:30,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:47:30,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:30,559 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:47:30,559 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:47:30,559 INFO L87 Difference]: Start difference. First operand 518 states and 699 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 04:47:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:30,821 INFO L93 Difference]: Finished difference Result 529 states and 718 transitions. [2024-11-28 04:47:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:47:30,821 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 85 [2024-11-28 04:47:30,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:30,825 INFO L225 Difference]: With dead ends: 529 [2024-11-28 04:47:30,825 INFO L226 Difference]: Without dead ends: 528 [2024-11-28 04:47:30,826 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:47:30,826 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 53 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:30,827 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 91 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:47:30,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-28 04:47:30,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 517. [2024-11-28 04:47:30,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 407 states have (on average 1.2628992628992628) internal successors, (514), 424 states have internal predecessors, (514), 91 states have call successors, (91), 1 states have call predecessors, (91), 1 states have return successors, (91), 91 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-28 04:47:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 696 transitions. [2024-11-28 04:47:30,900 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 696 transitions. Word has length 85 [2024-11-28 04:47:30,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:30,900 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 696 transitions. [2024-11-28 04:47:30,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 04:47:30,901 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 696 transitions. [2024-11-28 04:47:30,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:47:30,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:30,902 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2024-11-28 04:47:30,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:47:31,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 04:47:31,106 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:31,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:31,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1021952544, now seen corresponding path program 1 times [2024-11-28 04:47:31,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:31,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185801922] [2024-11-28 04:47:31,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:31,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:31,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:31,216 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:31,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:31,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185801922] [2024-11-28 04:47:31,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185801922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:31,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998985850] [2024-11-28 04:47:31,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:31,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:31,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:31,219 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:31,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:47:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:31,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 04:47:31,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:31,457 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 04:47:31,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998985850] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:47:31,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:47:31,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-28 04:47:31,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510832855] [2024-11-28 04:47:31,626 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:31,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:47:31,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:31,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:47:31,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:47:31,628 INFO L87 Difference]: Start difference. First operand 517 states and 696 transitions. Second operand has 11 states, 10 states have (on average 12.0) internal successors, (120), 11 states have internal predecessors, (120), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-28 04:47:32,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:32,309 INFO L93 Difference]: Finished difference Result 710 states and 964 transitions. [2024-11-28 04:47:32,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:47:32,310 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.0) internal successors, (120), 11 states have internal predecessors, (120), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) Word has length 86 [2024-11-28 04:47:32,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:32,314 INFO L225 Difference]: With dead ends: 710 [2024-11-28 04:47:32,314 INFO L226 Difference]: Without dead ends: 708 [2024-11-28 04:47:32,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=141, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:47:32,316 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 222 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:32,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 254 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:47:32,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-28 04:47:32,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 589. [2024-11-28 04:47:32,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 470 states have (on average 1.2553191489361701) internal successors, (590), 487 states have internal predecessors, (590), 100 states have call successors, (100), 1 states have call predecessors, (100), 1 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-11-28 04:47:32,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 790 transitions. [2024-11-28 04:47:32,421 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 790 transitions. Word has length 86 [2024-11-28 04:47:32,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:32,422 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 790 transitions. [2024-11-28 04:47:32,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.0) internal successors, (120), 11 states have internal predecessors, (120), 9 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 9 states have call predecessors, (27), 9 states have call successors, (27) [2024-11-28 04:47:32,423 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 790 transitions. [2024-11-28 04:47:32,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 04:47:32,426 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:32,426 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:32,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:47:32,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 04:47:32,629 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:32,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1736331172, now seen corresponding path program 1 times [2024-11-28 04:47:32,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:32,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420681706] [2024-11-28 04:47:32,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:32,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:47:32,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:32,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420681706] [2024-11-28 04:47:32,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420681706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:32,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832249148] [2024-11-28 04:47:32,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:32,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:32,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:32,791 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:32,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:47:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:32,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:47:32,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:33,038 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:47:33,038 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:33,272 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:47:33,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832249148] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:47:33,272 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:47:33,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2024-11-28 04:47:33,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599832802] [2024-11-28 04:47:33,273 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:33,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:47:33,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:33,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:47:33,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:47:33,274 INFO L87 Difference]: Start difference. First operand 589 states and 790 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 04:47:33,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:33,931 INFO L93 Difference]: Finished difference Result 593 states and 790 transitions. [2024-11-28 04:47:33,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:47:33,932 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 92 [2024-11-28 04:47:33,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:33,936 INFO L225 Difference]: With dead ends: 593 [2024-11-28 04:47:33,936 INFO L226 Difference]: Without dead ends: 592 [2024-11-28 04:47:33,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 178 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:47:33,937 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 236 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:33,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 252 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:47:33,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2024-11-28 04:47:34,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 561. [2024-11-28 04:47:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 448 states have (on average 1.2477678571428572) internal successors, (559), 464 states have internal predecessors, (559), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-28 04:47:34,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 749 transitions. [2024-11-28 04:47:34,007 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 749 transitions. Word has length 92 [2024-11-28 04:47:34,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:34,008 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 749 transitions. [2024-11-28 04:47:34,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 10 states have internal predecessors, (78), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-28 04:47:34,008 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 749 transitions. [2024-11-28 04:47:34,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-28 04:47:34,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:34,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:34,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:47:34,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:47:34,213 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:34,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:34,214 INFO L85 PathProgramCache]: Analyzing trace with hash 624082354, now seen corresponding path program 1 times [2024-11-28 04:47:34,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:34,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515942462] [2024-11-28 04:47:34,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:34,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:34,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [214896978] [2024-11-28 04:47:34,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:34,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:34,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:34,242 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:34,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:47:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:34,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:47:34,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:34,921 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:47:34,922 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:35,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:35,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515942462] [2024-11-28 04:47:35,158 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:35,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214896978] [2024-11-28 04:47:35,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214896978] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:35,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:35,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:47:35,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682532238] [2024-11-28 04:47:35,159 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:35,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:47:35,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:35,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:47:35,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:47:35,162 INFO L87 Difference]: Start difference. First operand 561 states and 749 transitions. Second operand has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:47:36,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:36,370 INFO L93 Difference]: Finished difference Result 1005 states and 1379 transitions. [2024-11-28 04:47:36,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:47:36,371 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 94 [2024-11-28 04:47:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:36,376 INFO L225 Difference]: With dead ends: 1005 [2024-11-28 04:47:36,376 INFO L226 Difference]: Without dead ends: 1002 [2024-11-28 04:47:36,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:47:36,377 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 202 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:36,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 135 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:47:36,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2024-11-28 04:47:36,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 601. [2024-11-28 04:47:36,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 479 states have (on average 1.2526096033402923) internal successors, (600), 495 states have internal predecessors, (600), 104 states have call successors, (104), 1 states have call predecessors, (104), 1 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-28 04:47:36,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 808 transitions. [2024-11-28 04:47:36,469 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 808 transitions. Word has length 94 [2024-11-28 04:47:36,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:36,470 INFO L471 AbstractCegarLoop]: Abstraction has 601 states and 808 transitions. [2024-11-28 04:47:36,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.222222222222222) internal successors, (47), 10 states have internal predecessors, (47), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:47:36,470 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 808 transitions. [2024-11-28 04:47:36,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-28 04:47:36,471 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:36,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:36,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:36,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:47:36,676 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:36,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:36,677 INFO L85 PathProgramCache]: Analyzing trace with hash -2128283450, now seen corresponding path program 1 times [2024-11-28 04:47:36,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:36,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535107993] [2024-11-28 04:47:36,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:36,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:36,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1737440680] [2024-11-28 04:47:36,701 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:36,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:36,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:36,705 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:36,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:47:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:36,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:47:36,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:37,332 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:47:37,334 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:37,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:37,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535107993] [2024-11-28 04:47:37,758 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:37,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737440680] [2024-11-28 04:47:37,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737440680] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:37,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:37,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:47:37,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007912617] [2024-11-28 04:47:37,761 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:37,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:47:37,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:37,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:47:37,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:47:37,762 INFO L87 Difference]: Start difference. First operand 601 states and 808 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:47:38,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:38,495 INFO L93 Difference]: Finished difference Result 689 states and 917 transitions. [2024-11-28 04:47:38,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:47:38,496 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 95 [2024-11-28 04:47:38,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:38,500 INFO L225 Difference]: With dead ends: 689 [2024-11-28 04:47:38,500 INFO L226 Difference]: Without dead ends: 686 [2024-11-28 04:47:38,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:47:38,501 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 74 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:38,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 198 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:47:38,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2024-11-28 04:47:38,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 665. [2024-11-28 04:47:38,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 665 states, 531 states have (on average 1.2485875706214689) internal successors, (663), 547 states have internal predecessors, (663), 116 states have call successors, (116), 1 states have call predecessors, (116), 1 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2024-11-28 04:47:38,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 665 states to 665 states and 895 transitions. [2024-11-28 04:47:38,611 INFO L78 Accepts]: Start accepts. Automaton has 665 states and 895 transitions. Word has length 95 [2024-11-28 04:47:38,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:38,612 INFO L471 AbstractCegarLoop]: Abstraction has 665 states and 895 transitions. [2024-11-28 04:47:38,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:47:38,612 INFO L276 IsEmpty]: Start isEmpty. Operand 665 states and 895 transitions. [2024-11-28 04:47:38,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-28 04:47:38,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:38,613 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:38,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:38,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 04:47:38,814 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:38,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:38,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1552277452, now seen corresponding path program 1 times [2024-11-28 04:47:38,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:38,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25380656] [2024-11-28 04:47:38,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:38,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:38,914 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:47:38,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:38,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25380656] [2024-11-28 04:47:38,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25380656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:38,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:38,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:47:38,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593509756] [2024-11-28 04:47:38,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:38,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 04:47:38,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:38,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 04:47:38,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:47:38,916 INFO L87 Difference]: Start difference. First operand 665 states and 895 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:47:39,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:39,498 INFO L93 Difference]: Finished difference Result 669 states and 895 transitions. [2024-11-28 04:47:39,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:47:39,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 96 [2024-11-28 04:47:39,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:39,503 INFO L225 Difference]: With dead ends: 669 [2024-11-28 04:47:39,503 INFO L226 Difference]: Without dead ends: 668 [2024-11-28 04:47:39,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:47:39,504 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 83 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:39,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 153 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:47:39,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-28 04:47:39,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 636. [2024-11-28 04:47:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 505 states have (on average 1.2435643564356436) internal successors, (628), 520 states have internal predecessors, (628), 114 states have call successors, (114), 1 states have call predecessors, (114), 1 states have return successors, (114), 114 states have call predecessors, (114), 114 states have call successors, (114) [2024-11-28 04:47:39,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 856 transitions. [2024-11-28 04:47:39,620 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 856 transitions. Word has length 96 [2024-11-28 04:47:39,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:39,621 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 856 transitions. [2024-11-28 04:47:39,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:47:39,621 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 856 transitions. [2024-11-28 04:47:39,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:47:39,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:39,624 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:39,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 04:47:39,624 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:39,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:39,624 INFO L85 PathProgramCache]: Analyzing trace with hash -875960696, now seen corresponding path program 1 times [2024-11-28 04:47:39,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:39,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605507300] [2024-11-28 04:47:39,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:39,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:47:39,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1101558354] [2024-11-28 04:47:39,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:39,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:39,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:39,656 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:39,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:47:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:39,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:47:39,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:40,304 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:47:40,305 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:44,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:44,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605507300] [2024-11-28 04:47:44,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:44,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101558354] [2024-11-28 04:47:44,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101558354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:44,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:44,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-28 04:47:44,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806148517] [2024-11-28 04:47:44,815 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:44,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 04:47:44,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:44,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 04:47:44,816 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=163, Unknown=1, NotChecked=0, Total=210 [2024-11-28 04:47:44,816 INFO L87 Difference]: Start difference. First operand 636 states and 856 transitions. Second operand has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:47:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:45,563 INFO L93 Difference]: Finished difference Result 652 states and 862 transitions. [2024-11-28 04:47:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 04:47:45,564 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 97 [2024-11-28 04:47:45,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:45,567 INFO L225 Difference]: With dead ends: 652 [2024-11-28 04:47:45,567 INFO L226 Difference]: Without dead ends: 645 [2024-11-28 04:47:45,568 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=91, Invalid=328, Unknown=1, NotChecked=0, Total=420 [2024-11-28 04:47:45,572 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 173 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:45,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 196 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:47:45,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2024-11-28 04:47:45,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 526. [2024-11-28 04:47:45,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 416 states have (on average 1.2475961538461537) internal successors, (519), 431 states have internal predecessors, (519), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:47:45,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 705 transitions. [2024-11-28 04:47:45,670 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 705 transitions. Word has length 97 [2024-11-28 04:47:45,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:45,670 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 705 transitions. [2024-11-28 04:47:45,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.25) internal successors, (50), 9 states have internal predecessors, (50), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-28 04:47:45,671 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 705 transitions. [2024-11-28 04:47:45,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-28 04:47:45,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:45,673 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:45,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 04:47:45,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:45,873 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:45,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:45,874 INFO L85 PathProgramCache]: Analyzing trace with hash 967583742, now seen corresponding path program 2 times [2024-11-28 04:47:45,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:45,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665840307] [2024-11-28 04:47:45,874 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:47:45,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:45,896 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:47:45,897 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:47:45,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634908765] [2024-11-28 04:47:45,898 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:47:45,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:45,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:45,900 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:45,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:47:45,972 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:47:45,972 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:47:45,974 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:47:45,976 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-28 04:47:46,322 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:46,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:46,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665840307] [2024-11-28 04:47:46,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:46,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634908765] [2024-11-28 04:47:46,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634908765] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:46,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:46,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-28 04:47:46,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307420606] [2024-11-28 04:47:46,456 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:46,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:47:46,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:46,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:47:46,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:47:46,457 INFO L87 Difference]: Start difference. First operand 526 states and 705 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:47:47,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:47,216 INFO L93 Difference]: Finished difference Result 711 states and 965 transitions. [2024-11-28 04:47:47,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:47:47,217 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 97 [2024-11-28 04:47:47,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:47,220 INFO L225 Difference]: With dead ends: 711 [2024-11-28 04:47:47,220 INFO L226 Difference]: Without dead ends: 707 [2024-11-28 04:47:47,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:47:47,221 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 158 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:47,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 215 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 816 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:47:47,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-11-28 04:47:47,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 526. [2024-11-28 04:47:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 416 states have (on average 1.21875) internal successors, (507), 431 states have internal predecessors, (507), 93 states have call successors, (93), 1 states have call predecessors, (93), 1 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-28 04:47:47,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 693 transitions. [2024-11-28 04:47:47,319 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 693 transitions. Word has length 97 [2024-11-28 04:47:47,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:47,323 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 693 transitions. [2024-11-28 04:47:47,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 5 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:47:47,323 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 693 transitions. [2024-11-28 04:47:47,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 04:47:47,324 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:47,324 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1] [2024-11-28 04:47:47,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:47,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:47,525 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:47,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:47,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1206695362, now seen corresponding path program 2 times [2024-11-28 04:47:47,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:47,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362444473] [2024-11-28 04:47:47,526 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:47:47,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:47,541 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:47:47,541 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:47:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-28 04:47:47,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:47,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362444473] [2024-11-28 04:47:47,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362444473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:47:47,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:47:47,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:47:47,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392503368] [2024-11-28 04:47:47,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:47:47,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:47:47,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:47,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:47:47,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:47:47,617 INFO L87 Difference]: Start difference. First operand 526 states and 693 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:47:48,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:48,062 INFO L93 Difference]: Finished difference Result 931 states and 1228 transitions. [2024-11-28 04:47:48,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 04:47:48,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 103 [2024-11-28 04:47:48,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:48,065 INFO L225 Difference]: With dead ends: 931 [2024-11-28 04:47:48,065 INFO L226 Difference]: Without dead ends: 566 [2024-11-28 04:47:48,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:47:48,067 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 28 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:48,068 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 114 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:47:48,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2024-11-28 04:47:48,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 560. [2024-11-28 04:47:48,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 446 states have (on average 1.2174887892376682) internal successors, (543), 461 states have internal predecessors, (543), 97 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-28 04:47:48,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 737 transitions. [2024-11-28 04:47:48,153 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 737 transitions. Word has length 103 [2024-11-28 04:47:48,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:48,153 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 737 transitions. [2024-11-28 04:47:48,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 4 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-28 04:47:48,154 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 737 transitions. [2024-11-28 04:47:48,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-28 04:47:48,155 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:48,155 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:48,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 04:47:48,156 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:48,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:48,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1932117380, now seen corresponding path program 2 times [2024-11-28 04:47:48,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:48,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647781934] [2024-11-28 04:47:48,157 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:47:48,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:48,193 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:47:48,194 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:47:48,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [29070599] [2024-11-28 04:47:48,196 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:47:48,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:48,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:48,198 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:48,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:47:48,271 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:47:48,271 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:47:48,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:47:48,275 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:49,110 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 4 proven. 45 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:47:49,111 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:49,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:49,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647781934] [2024-11-28 04:47:49,276 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:49,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29070599] [2024-11-28 04:47:49,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29070599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:49,276 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:49,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:47:49,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778313197] [2024-11-28 04:47:49,277 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:49,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:47:49,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:49,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:47:49,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:47:49,278 INFO L87 Difference]: Start difference. First operand 560 states and 737 transitions. Second operand has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 04:47:51,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:51,104 INFO L93 Difference]: Finished difference Result 1004 states and 1353 transitions. [2024-11-28 04:47:51,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-28 04:47:51,105 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 131 [2024-11-28 04:47:51,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:51,110 INFO L225 Difference]: With dead ends: 1004 [2024-11-28 04:47:51,111 INFO L226 Difference]: Without dead ends: 1001 [2024-11-28 04:47:51,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:47:51,112 INFO L435 NwaCegarLoop]: 100 mSDtfsCounter, 263 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 1864 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 1915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:51,112 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 181 Invalid, 1915 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1864 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:47:51,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2024-11-28 04:47:51,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 552. [2024-11-28 04:47:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 438 states have (on average 1.2146118721461188) internal successors, (532), 453 states have internal predecessors, (532), 97 states have call successors, (97), 1 states have call predecessors, (97), 1 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-28 04:47:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 726 transitions. [2024-11-28 04:47:51,225 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 726 transitions. Word has length 131 [2024-11-28 04:47:51,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:51,225 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 726 transitions. [2024-11-28 04:47:51,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.818181818181818) internal successors, (64), 12 states have internal predecessors, (64), 7 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-28 04:47:51,225 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 726 transitions. [2024-11-28 04:47:51,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-28 04:47:51,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:51,229 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:51,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:47:51,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:51,430 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:51,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:51,430 INFO L85 PathProgramCache]: Analyzing trace with hash 233903420, now seen corresponding path program 2 times [2024-11-28 04:47:51,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:51,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537532764] [2024-11-28 04:47:51,430 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:47:51,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:51,449 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:47:51,449 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:47:51,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [213260341] [2024-11-28 04:47:51,450 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:47:51,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:51,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:51,454 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:51,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:47:51,522 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:47:51,522 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:47:51,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:47:51,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:52,156 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:47:52,156 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:52,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:52,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537532764] [2024-11-28 04:47:52,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:52,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213260341] [2024-11-28 04:47:52,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213260341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:52,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:52,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:47:52,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317082018] [2024-11-28 04:47:52,491 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:52,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:47:52,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:52,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:47:52,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:47:52,492 INFO L87 Difference]: Start difference. First operand 552 states and 726 transitions. Second operand has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:47:52,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:52,948 INFO L93 Difference]: Finished difference Result 634 states and 829 transitions. [2024-11-28 04:47:52,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:47:52,948 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 132 [2024-11-28 04:47:52,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:52,952 INFO L225 Difference]: With dead ends: 634 [2024-11-28 04:47:52,952 INFO L226 Difference]: Without dead ends: 631 [2024-11-28 04:47:52,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2024-11-28 04:47:52,953 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 116 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:52,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 201 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:47:52,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2024-11-28 04:47:53,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 616. [2024-11-28 04:47:53,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 616 states, 490 states have (on average 1.2081632653061225) internal successors, (592), 505 states have internal predecessors, (592), 109 states have call successors, (109), 1 states have call predecessors, (109), 1 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-28 04:47:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 810 transitions. [2024-11-28 04:47:53,055 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 810 transitions. Word has length 132 [2024-11-28 04:47:53,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:53,056 INFO L471 AbstractCegarLoop]: Abstraction has 616 states and 810 transitions. [2024-11-28 04:47:53,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.222222222222222) internal successors, (65), 10 states have internal predecessors, (65), 6 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-28 04:47:53,056 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 810 transitions. [2024-11-28 04:47:53,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 04:47:53,058 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:53,058 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:53,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:47:53,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-28 04:47:53,262 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:53,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:53,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1442889086, now seen corresponding path program 2 times [2024-11-28 04:47:53,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:53,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240296992] [2024-11-28 04:47:53,263 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:47:53,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:53,285 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:47:53,286 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:47:53,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [299643689] [2024-11-28 04:47:53,287 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:47:53,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:53,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:53,291 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:53,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:47:53,373 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:47:53,374 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:47:53,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:47:53,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:53,974 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-28 04:47:53,974 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:54,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:54,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240296992] [2024-11-28 04:47:54,993 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:54,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299643689] [2024-11-28 04:47:54,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299643689] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:54,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:54,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:47:54,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619484397] [2024-11-28 04:47:54,993 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:54,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:47:54,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:54,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:47:54,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:47:54,995 INFO L87 Difference]: Start difference. First operand 616 states and 810 transitions. Second operand has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:47:55,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:55,934 INFO L93 Difference]: Finished difference Result 636 states and 820 transitions. [2024-11-28 04:47:55,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:47:55,935 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 134 [2024-11-28 04:47:55,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:55,938 INFO L225 Difference]: With dead ends: 636 [2024-11-28 04:47:55,938 INFO L226 Difference]: Without dead ends: 629 [2024-11-28 04:47:55,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:47:55,938 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 74 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:55,939 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 301 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:47:55,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-11-28 04:47:56,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 506. [2024-11-28 04:47:56,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 401 states have (on average 1.2119700748129676) internal successors, (486), 416 states have internal predecessors, (486), 88 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-28 04:47:56,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 662 transitions. [2024-11-28 04:47:56,029 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 662 transitions. Word has length 134 [2024-11-28 04:47:56,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:56,029 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 662 transitions. [2024-11-28 04:47:56,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 5 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-28 04:47:56,029 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 662 transitions. [2024-11-28 04:47:56,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-28 04:47:56,031 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:56,031 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:56,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-28 04:47:56,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:56,235 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:56,236 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:56,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1008533772, now seen corresponding path program 3 times [2024-11-28 04:47:56,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:56,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696782076] [2024-11-28 04:47:56,236 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:47:56,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:56,290 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2024-11-28 04:47:56,290 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:47:56,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080530516] [2024-11-28 04:47:56,294 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:47:56,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:56,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:56,296 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:56,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:47:56,346 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 04:47:56,346 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:47:56,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:47:56,350 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:47:56,779 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 45 proven. 14 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked. [2024-11-28 04:47:56,780 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:47:57,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:47:57,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696782076] [2024-11-28 04:47:57,483 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:47:57,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080530516] [2024-11-28 04:47:57,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080530516] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:57,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:47:57,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:47:57,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25487411] [2024-11-28 04:47:57,484 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:47:57,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:47:57,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:47:57,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:47:57,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2024-11-28 04:47:57,485 INFO L87 Difference]: Start difference. First operand 506 states and 662 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:47:58,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:47:58,714 INFO L93 Difference]: Finished difference Result 655 states and 865 transitions. [2024-11-28 04:47:58,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:47:58,714 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 134 [2024-11-28 04:47:58,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:47:58,717 INFO L225 Difference]: With dead ends: 655 [2024-11-28 04:47:58,717 INFO L226 Difference]: Without dead ends: 651 [2024-11-28 04:47:58,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=85, Invalid=256, Unknown=1, NotChecked=0, Total=342 [2024-11-28 04:47:58,719 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 244 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:47:58,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 199 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 628 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:47:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-28 04:47:58,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 506. [2024-11-28 04:47:58,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 401 states have (on average 1.201995012468828) internal successors, (482), 416 states have internal predecessors, (482), 88 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 88 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-28 04:47:58,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 658 transitions. [2024-11-28 04:47:58,824 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 658 transitions. Word has length 134 [2024-11-28 04:47:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:47:58,824 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 658 transitions. [2024-11-28 04:47:58,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:47:58,825 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 658 transitions. [2024-11-28 04:47:58,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-28 04:47:58,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:47:58,826 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:47:58,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-28 04:47:59,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:59,027 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:47:59,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:47:59,028 INFO L85 PathProgramCache]: Analyzing trace with hash 476576824, now seen corresponding path program 3 times [2024-11-28 04:47:59,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:47:59,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805459055] [2024-11-28 04:47:59,028 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:47:59,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:47:59,059 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 04:47:59,060 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:47:59,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1879576672] [2024-11-28 04:47:59,062 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:47:59,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:47:59,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:47:59,064 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:47:59,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:47:59,149 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:47:59,149 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:47:59,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:47:59,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:07,850 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 99 proven. 56 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-28 04:48:07,850 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:48:08,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:48:08,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805459055] [2024-11-28 04:48:08,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:48:08,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879576672] [2024-11-28 04:48:08,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879576672] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:48:08,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:48:08,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-11-28 04:48:08,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082484029] [2024-11-28 04:48:08,745 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:48:08,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:48:08,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:48:08,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:48:08,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=413, Unknown=2, NotChecked=0, Total=506 [2024-11-28 04:48:08,746 INFO L87 Difference]: Start difference. First operand 506 states and 658 transitions. Second operand has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:48:10,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:14,084 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:22,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:26,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:34,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.90s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:36,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:40,847 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:44,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.75s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:46,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:50,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.55s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:54,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.83s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:58,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:48:59,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:59,206 INFO L93 Difference]: Finished difference Result 909 states and 1217 transitions. [2024-11-28 04:48:59,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 04:48:59,207 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 140 [2024-11-28 04:48:59,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:59,211 INFO L225 Difference]: With dead ends: 909 [2024-11-28 04:48:59,211 INFO L226 Difference]: Without dead ends: 900 [2024-11-28 04:48:59,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=274, Invalid=1205, Unknown=3, NotChecked=0, Total=1482 [2024-11-28 04:48:59,213 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 380 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 80 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:59,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 161 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1039 Invalid, 12 Unknown, 0 Unchecked, 43.3s Time] [2024-11-28 04:48:59,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-28 04:48:59,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 865. [2024-11-28 04:48:59,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 693 states have (on average 1.2106782106782106) internal successors, (839), 708 states have internal predecessors, (839), 155 states have call successors, (155), 1 states have call predecessors, (155), 1 states have return successors, (155), 155 states have call predecessors, (155), 155 states have call successors, (155) [2024-11-28 04:48:59,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1149 transitions. [2024-11-28 04:48:59,389 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1149 transitions. Word has length 140 [2024-11-28 04:48:59,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:59,390 INFO L471 AbstractCegarLoop]: Abstraction has 865 states and 1149 transitions. [2024-11-28 04:48:59,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:48:59,390 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1149 transitions. [2024-11-28 04:48:59,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-28 04:48:59,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:59,392 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 15, 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] [2024-11-28 04:48:59,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 04:48:59,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-11-28 04:48:59,596 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:48:59,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:59,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1571170950, now seen corresponding path program 3 times [2024-11-28 04:48:59,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:48:59,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671120694] [2024-11-28 04:48:59,597 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:48:59,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:48:59,643 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 04:48:59,643 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:48:59,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1552165230] [2024-11-28 04:48:59,644 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:48:59,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:48:59,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:48:59,653 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:48:59,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:48:59,723 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:48:59,723 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:48:59,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 04:48:59,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:00,365 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 67 proven. 63 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2024-11-28 04:49:00,365 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:00,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:00,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671120694] [2024-11-28 04:49:00,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:49:00,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552165230] [2024-11-28 04:49:00,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552165230] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:00,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:49:00,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:49:00,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652883721] [2024-11-28 04:49:00,863 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:00,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:49:00,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:00,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:49:00,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:49:00,864 INFO L87 Difference]: Start difference. First operand 865 states and 1149 transitions. Second operand has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:49:06,331 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 [0] [2024-11-28 04:49:06,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:06,857 INFO L93 Difference]: Finished difference Result 891 states and 1163 transitions. [2024-11-28 04:49:06,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:49:06,857 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) Word has length 142 [2024-11-28 04:49:06,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:06,860 INFO L225 Difference]: With dead ends: 891 [2024-11-28 04:49:06,860 INFO L226 Difference]: Without dead ends: 868 [2024-11-28 04:49:06,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=308, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:49:06,861 INFO L435 NwaCegarLoop]: 49 mSDtfsCounter, 71 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:06,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 300 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 858 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2024-11-28 04:49:06,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-11-28 04:49:07,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 848. [2024-11-28 04:49:07,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 678 states have (on average 1.1873156342182891) internal successors, (805), 693 states have internal predecessors, (805), 153 states have call successors, (153), 1 states have call predecessors, (153), 1 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-28 04:49:07,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1111 transitions. [2024-11-28 04:49:07,047 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1111 transitions. Word has length 142 [2024-11-28 04:49:07,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:07,048 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1111 transitions. [2024-11-28 04:49:07,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.5) internal successors, (66), 13 states have internal predecessors, (66), 4 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-28 04:49:07,049 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1111 transitions. [2024-11-28 04:49:07,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-28 04:49:07,051 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:07,052 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:07,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-28 04:49:07,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-28 04:49:07,256 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:49:07,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:07,257 INFO L85 PathProgramCache]: Analyzing trace with hash 236966898, now seen corresponding path program 3 times [2024-11-28 04:49:07,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:07,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013702826] [2024-11-28 04:49:07,257 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:49:07,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:07,312 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-28 04:49:07,312 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:49:07,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1479212488] [2024-11-28 04:49:07,313 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:49:07,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:07,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:07,315 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:07,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:49:07,370 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 04:49:07,370 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:07,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:49:07,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:08,408 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 51 proven. 4 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2024-11-28 04:49:08,408 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:16,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:16,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013702826] [2024-11-28 04:49:16,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:49:16,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479212488] [2024-11-28 04:49:16,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479212488] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:16,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:49:16,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-28 04:49:16,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215701670] [2024-11-28 04:49:16,806 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:16,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:49:16,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:16,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:49:16,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=168, Unknown=1, NotChecked=0, Total=210 [2024-11-28 04:49:16,808 INFO L87 Difference]: Start difference. First operand 848 states and 1111 transitions. Second operand has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:49:17,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:17,640 INFO L93 Difference]: Finished difference Result 855 states and 1112 transitions. [2024-11-28 04:49:17,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:49:17,641 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 168 [2024-11-28 04:49:17,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:17,645 INFO L225 Difference]: With dead ends: 855 [2024-11-28 04:49:17,645 INFO L226 Difference]: Without dead ends: 852 [2024-11-28 04:49:17,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=110, Invalid=351, Unknown=1, NotChecked=0, Total=462 [2024-11-28 04:49:17,647 INFO L435 NwaCegarLoop]: 15 mSDtfsCounter, 183 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:17,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 114 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:49:17,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2024-11-28 04:49:17,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 848. [2024-11-28 04:49:17,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 678 states have (on average 1.1843657817109146) internal successors, (803), 693 states have internal predecessors, (803), 153 states have call successors, (153), 1 states have call predecessors, (153), 1 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2024-11-28 04:49:17,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1109 transitions. [2024-11-28 04:49:17,883 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 1109 transitions. Word has length 168 [2024-11-28 04:49:17,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:17,888 INFO L471 AbstractCegarLoop]: Abstraction has 848 states and 1109 transitions. [2024-11-28 04:49:17,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.666666666666667) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 04:49:17,888 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 1109 transitions. [2024-11-28 04:49:17,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-28 04:49:17,891 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:17,891 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 21, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:17,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 04:49:18,097 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-28 04:49:18,097 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:49:18,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:18,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1631440701, now seen corresponding path program 2 times [2024-11-28 04:49:18,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:18,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487766856] [2024-11-28 04:49:18,098 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:49:18,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:18,122 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:49:18,122 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:18,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-28 04:49:18,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:18,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487766856] [2024-11-28 04:49:18,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487766856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:18,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972790123] [2024-11-28 04:49:18,321 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:49:18,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:18,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:18,323 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:18,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:49:18,406 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:49:18,407 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:18,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 04:49:18,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:18,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-28 04:49:18,644 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:19,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1006 backedges. 0 proven. 166 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2024-11-28 04:49:19,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972790123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:49:19,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:49:19,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-28 04:49:19,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721056478] [2024-11-28 04:49:19,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:19,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:49:19,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:19,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:49:19,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:49:19,174 INFO L87 Difference]: Start difference. First operand 848 states and 1109 transitions. Second operand has 14 states, 13 states have (on average 12.692307692307692) internal successors, (165), 14 states have internal predecessors, (165), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2024-11-28 04:49:20,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:20,282 INFO L93 Difference]: Finished difference Result 2367 states and 3163 transitions. [2024-11-28 04:49:20,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:49:20,283 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 12.692307692307692) internal successors, (165), 14 states have internal predecessors, (165), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) Word has length 191 [2024-11-28 04:49:20,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:20,288 INFO L225 Difference]: With dead ends: 2367 [2024-11-28 04:49:20,289 INFO L226 Difference]: Without dead ends: 2366 [2024-11-28 04:49:20,290 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=143, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:49:20,290 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 657 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:20,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 470 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:49:20,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2024-11-28 04:49:20,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 1724. [2024-11-28 04:49:20,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1386 states have (on average 1.246031746031746) internal successors, (1727), 1401 states have internal predecessors, (1727), 321 states have call successors, (321), 1 states have call predecessors, (321), 1 states have return successors, (321), 321 states have call predecessors, (321), 321 states have call successors, (321) [2024-11-28 04:49:20,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2369 transitions. [2024-11-28 04:49:20,529 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2369 transitions. Word has length 191 [2024-11-28 04:49:20,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:20,529 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 2369 transitions. [2024-11-28 04:49:20,530 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 12.692307692307692) internal successors, (165), 14 states have internal predecessors, (165), 13 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 13 states have call predecessors, (40), 13 states have call successors, (40) [2024-11-28 04:49:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2369 transitions. [2024-11-28 04:49:20,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-28 04:49:20,531 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:20,531 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:20,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-28 04:49:20,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-28 04:49:20,732 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:49:20,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:20,732 INFO L85 PathProgramCache]: Analyzing trace with hash -883879122, now seen corresponding path program 1 times [2024-11-28 04:49:20,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:20,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695258063] [2024-11-28 04:49:20,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:20,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:21,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-28 04:49:21,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:21,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695258063] [2024-11-28 04:49:21,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695258063] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:21,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073717211] [2024-11-28 04:49:21,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:21,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:21,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:21,049 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:21,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:49:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:21,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:49:21,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:21,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 551 proven. 36 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2024-11-28 04:49:21,378 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:21,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 103 proven. 36 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2024-11-28 04:49:21,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073717211] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:49:21,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:49:21,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 15 [2024-11-28 04:49:21,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635748510] [2024-11-28 04:49:21,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:21,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:49:21,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:21,691 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:49:21,691 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:49:21,692 INFO L87 Difference]: Start difference. First operand 1724 states and 2369 transitions. Second operand has 15 states, 15 states have (on average 12.0) internal successors, (180), 15 states have internal predecessors, (180), 13 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 13 states have call predecessors, (44), 13 states have call successors, (44) [2024-11-28 04:49:23,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:23,310 INFO L93 Difference]: Finished difference Result 3082 states and 4270 transitions. [2024-11-28 04:49:23,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:49:23,311 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.0) internal successors, (180), 15 states have internal predecessors, (180), 13 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 13 states have call predecessors, (44), 13 states have call successors, (44) Word has length 205 [2024-11-28 04:49:23,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:23,319 INFO L225 Difference]: With dead ends: 3082 [2024-11-28 04:49:23,319 INFO L226 Difference]: Without dead ends: 1869 [2024-11-28 04:49:23,323 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 402 SyntacticMatches, 4 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=183, Invalid=687, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:49:23,324 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 196 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 1270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:23,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 486 Invalid, 1270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:49:23,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1869 states. [2024-11-28 04:49:23,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1869 to 1810. [2024-11-28 04:49:23,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1810 states, 1456 states have (on average 1.245879120879121) internal successors, (1814), 1471 states have internal predecessors, (1814), 337 states have call successors, (337), 1 states have call predecessors, (337), 1 states have return successors, (337), 337 states have call predecessors, (337), 337 states have call successors, (337) [2024-11-28 04:49:23,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1810 states to 1810 states and 2488 transitions. [2024-11-28 04:49:23,581 INFO L78 Accepts]: Start accepts. Automaton has 1810 states and 2488 transitions. Word has length 205 [2024-11-28 04:49:23,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:23,581 INFO L471 AbstractCegarLoop]: Abstraction has 1810 states and 2488 transitions. [2024-11-28 04:49:23,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.0) internal successors, (180), 15 states have internal predecessors, (180), 13 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 13 states have call predecessors, (44), 13 states have call successors, (44) [2024-11-28 04:49:23,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1810 states and 2488 transitions. [2024-11-28 04:49:23,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-28 04:49:23,583 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:23,583 INFO L218 NwaCegarLoop]: trace histogram [22, 22, 22, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:23,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:49:23,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:23,796 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:49:23,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:23,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1846118446, now seen corresponding path program 2 times [2024-11-28 04:49:23,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:23,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336953091] [2024-11-28 04:49:23,797 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:49:23,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:23,818 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:49:23,818 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:24,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-28 04:49:24,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:24,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336953091] [2024-11-28 04:49:24,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336953091] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:24,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528805851] [2024-11-28 04:49:24,133 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:49:24,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:24,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:24,135 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:24,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:49:24,238 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:49:24,238 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:24,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:49:24,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:24,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-28 04:49:24,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:25,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-28 04:49:25,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528805851] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:49:25,097 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:49:25,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2024-11-28 04:49:25,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135084120] [2024-11-28 04:49:25,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:25,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 04:49:25,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:25,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 04:49:25,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=291, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:49:25,099 INFO L87 Difference]: Start difference. First operand 1810 states and 2488 transitions. Second operand has 22 states, 21 states have (on average 13.142857142857142) internal successors, (276), 22 states have internal predecessors, (276), 20 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 20 states have call predecessors, (64), 20 states have call successors, (64) [2024-11-28 04:49:27,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:27,156 INFO L93 Difference]: Finished difference Result 4012 states and 5552 transitions. [2024-11-28 04:49:27,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 04:49:27,157 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 13.142857142857142) internal successors, (276), 22 states have internal predecessors, (276), 20 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 20 states have call predecessors, (64), 20 states have call successors, (64) Word has length 205 [2024-11-28 04:49:27,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:27,170 INFO L225 Difference]: With dead ends: 4012 [2024-11-28 04:49:27,170 INFO L226 Difference]: Without dead ends: 4011 [2024-11-28 04:49:27,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=587, Invalid=973, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 04:49:27,173 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 1219 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:27,173 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 361 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:49:27,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4011 states. [2024-11-28 04:49:27,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4011 to 2385. [2024-11-28 04:49:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 1926 states have (on average 1.2217030114226375) internal successors, (2353), 1941 states have internal predecessors, (2353), 442 states have call successors, (442), 1 states have call predecessors, (442), 1 states have return successors, (442), 442 states have call predecessors, (442), 442 states have call successors, (442) [2024-11-28 04:49:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3237 transitions. [2024-11-28 04:49:27,638 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3237 transitions. Word has length 205 [2024-11-28 04:49:27,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:27,638 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3237 transitions. [2024-11-28 04:49:27,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 13.142857142857142) internal successors, (276), 22 states have internal predecessors, (276), 20 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 20 states have call predecessors, (64), 20 states have call successors, (64) [2024-11-28 04:49:27,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3237 transitions. [2024-11-28 04:49:27,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2024-11-28 04:49:27,641 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:27,641 INFO L218 NwaCegarLoop]: trace histogram [23, 23, 23, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1] [2024-11-28 04:49:27,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-11-28 04:49:27,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:27,842 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:49:27,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:27,842 INFO L85 PathProgramCache]: Analyzing trace with hash -789932608, now seen corresponding path program 4 times [2024-11-28 04:49:27,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:27,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802712350] [2024-11-28 04:49:27,842 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:49:27,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:27,888 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:49:27,888 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:49:27,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178585873] [2024-11-28 04:49:27,890 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:49:27,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:27,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:27,892 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:27,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-28 04:49:27,985 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:49:27,985 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:27,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 04:49:27,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:29,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 128 proven. 40 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-28 04:49:29,042 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:29,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:29,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802712350] [2024-11-28 04:49:29,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:49:29,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178585873] [2024-11-28 04:49:29,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178585873] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:29,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:49:29,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:49:29,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970286949] [2024-11-28 04:49:29,264 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:29,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:49:29,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:29,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:49:29,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:49:29,266 INFO L87 Difference]: Start difference. First operand 2385 states and 3237 transitions. Second operand has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 9 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2024-11-28 04:49:31,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:31,922 INFO L93 Difference]: Finished difference Result 3029 states and 4151 transitions. [2024-11-28 04:49:31,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:49:31,923 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 9 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) Word has length 213 [2024-11-28 04:49:31,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:31,935 INFO L225 Difference]: With dead ends: 3029 [2024-11-28 04:49:31,935 INFO L226 Difference]: Without dead ends: 3013 [2024-11-28 04:49:31,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:49:31,937 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 216 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:31,937 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 401 Invalid, 1199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 04:49:31,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3013 states. [2024-11-28 04:49:32,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3013 to 2336. [2024-11-28 04:49:32,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 1885 states have (on average 1.220159151193634) internal successors, (2300), 1900 states have internal predecessors, (2300), 434 states have call successors, (434), 1 states have call predecessors, (434), 1 states have return successors, (434), 434 states have call predecessors, (434), 434 states have call successors, (434) [2024-11-28 04:49:32,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3168 transitions. [2024-11-28 04:49:32,311 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3168 transitions. Word has length 213 [2024-11-28 04:49:32,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:32,312 INFO L471 AbstractCegarLoop]: Abstraction has 2336 states and 3168 transitions. [2024-11-28 04:49:32,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.181818181818182) internal successors, (101), 12 states have internal predecessors, (101), 9 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2024-11-28 04:49:32,312 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3168 transitions. [2024-11-28 04:49:32,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2024-11-28 04:49:32,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:32,315 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 04:49:32,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-28 04:49:32,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:32,519 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:49:32,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:32,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1104547026, now seen corresponding path program 5 times [2024-11-28 04:49:32,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:32,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647866159] [2024-11-28 04:49:32,520 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:49:32,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:32,565 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-11-28 04:49:32,566 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:49:32,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1080236233] [2024-11-28 04:49:32,567 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:49:32,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:32,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:32,569 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:32,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-28 04:49:32,703 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2024-11-28 04:49:32,703 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:32,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-28 04:49:32,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:34,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1659 backedges. 25 proven. 230 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:49:34,091 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:34,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:34,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647866159] [2024-11-28 04:49:34,221 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:49:34,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080236233] [2024-11-28 04:49:34,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080236233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:34,221 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:49:34,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2024-11-28 04:49:34,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74806304] [2024-11-28 04:49:34,221 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:34,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:49:34,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:34,222 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:49:34,222 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:49:34,222 INFO L87 Difference]: Start difference. First operand 2336 states and 3168 transitions. Second operand has 18 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 18 states have internal predecessors, (118), 11 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-28 04:49:40,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:40,863 INFO L93 Difference]: Finished difference Result 5107 states and 7164 transitions. [2024-11-28 04:49:40,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-28 04:49:40,864 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 18 states have internal predecessors, (118), 11 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 250 [2024-11-28 04:49:40,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:40,883 INFO L225 Difference]: With dead ends: 5107 [2024-11-28 04:49:40,883 INFO L226 Difference]: Without dead ends: 5100 [2024-11-28 04:49:40,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 756 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=498, Invalid=2364, Unknown=0, NotChecked=0, Total=2862 [2024-11-28 04:49:40,886 INFO L435 NwaCegarLoop]: 195 mSDtfsCounter, 529 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 5555 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 5686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 5555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:40,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 1183 Invalid, 5686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 5555 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-28 04:49:40,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5100 states. [2024-11-28 04:49:41,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5100 to 3495. [2024-11-28 04:49:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 2816 states have (on average 1.23046875) internal successors, (3465), 2831 states have internal predecessors, (3465), 662 states have call successors, (662), 1 states have call predecessors, (662), 1 states have return successors, (662), 662 states have call predecessors, (662), 662 states have call successors, (662) [2024-11-28 04:49:41,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 4789 transitions. [2024-11-28 04:49:41,447 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 4789 transitions. Word has length 250 [2024-11-28 04:49:41,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:41,448 INFO L471 AbstractCegarLoop]: Abstraction has 3495 states and 4789 transitions. [2024-11-28 04:49:41,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.9411764705882355) internal successors, (118), 18 states have internal predecessors, (118), 11 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-11-28 04:49:41,448 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 4789 transitions. [2024-11-28 04:49:41,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-28 04:49:41,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:41,450 INFO L218 NwaCegarLoop]: trace histogram [27, 27, 27, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:49:41,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-28 04:49:41,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2024-11-28 04:49:41,651 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:49:41,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:41,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1385431430, now seen corresponding path program 1 times [2024-11-28 04:49:41,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:41,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216901165] [2024-11-28 04:49:41,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:41,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:41,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1695 backedges. 57 proven. 234 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-11-28 04:49:41,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:41,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216901165] [2024-11-28 04:49:41,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216901165] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:41,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410009855] [2024-11-28 04:49:41,965 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:49:41,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:41,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:41,967 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:41,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 04:49:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:49:42,067 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:49:42,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 1695 backedges. 573 proven. 147 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2024-11-28 04:49:42,416 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1695 backedges. 133 proven. 147 refuted. 0 times theorem prover too weak. 1415 trivial. 0 not checked. [2024-11-28 04:49:42,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410009855] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:49:42,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:49:42,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 14 [2024-11-28 04:49:42,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320247605] [2024-11-28 04:49:42,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:42,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:49:42,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:42,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:49:42,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:49:42,794 INFO L87 Difference]: Start difference. First operand 3495 states and 4789 transitions. Second operand has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 14 states have internal predecessors, (172), 12 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 12 states have call predecessors, (44), 12 states have call successors, (44) [2024-11-28 04:49:44,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:44,858 INFO L93 Difference]: Finished difference Result 4837 states and 6657 transitions. [2024-11-28 04:49:44,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:49:44,859 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 14 states have internal predecessors, (172), 12 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 12 states have call predecessors, (44), 12 states have call successors, (44) Word has length 253 [2024-11-28 04:49:44,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:44,870 INFO L225 Difference]: With dead ends: 4837 [2024-11-28 04:49:44,870 INFO L226 Difference]: Without dead ends: 2475 [2024-11-28 04:49:44,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 499 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:49:44,876 INFO L435 NwaCegarLoop]: 99 mSDtfsCounter, 331 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 1223 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:44,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 551 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1223 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:49:44,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2475 states. [2024-11-28 04:49:45,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2475 to 2324. [2024-11-28 04:49:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2324 states, 1866 states have (on average 1.212754555198285) internal successors, (2263), 1881 states have internal predecessors, (2263), 441 states have call successors, (441), 1 states have call predecessors, (441), 1 states have return successors, (441), 441 states have call predecessors, (441), 441 states have call successors, (441) [2024-11-28 04:49:45,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2324 states to 2324 states and 3145 transitions. [2024-11-28 04:49:45,397 INFO L78 Accepts]: Start accepts. Automaton has 2324 states and 3145 transitions. Word has length 253 [2024-11-28 04:49:45,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:45,398 INFO L471 AbstractCegarLoop]: Abstraction has 2324 states and 3145 transitions. [2024-11-28 04:49:45,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 14 states have internal predecessors, (172), 12 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 12 states have call predecessors, (44), 12 states have call successors, (44) [2024-11-28 04:49:45,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2324 states and 3145 transitions. [2024-11-28 04:49:45,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-28 04:49:45,400 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:45,400 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1] [2024-11-28 04:49:45,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2024-11-28 04:49:45,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable44 [2024-11-28 04:49:45,604 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:49:45,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:45,605 INFO L85 PathProgramCache]: Analyzing trace with hash -981942466, now seen corresponding path program 4 times [2024-11-28 04:49:45,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:45,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108914939] [2024-11-28 04:49:45,605 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:49:45,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:45,635 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:49:45,635 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:49:45,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179929843] [2024-11-28 04:49:45,637 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:49:45,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:45,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:45,641 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:45,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 04:49:45,771 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:49:45,772 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:45,774 INFO L256 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:49:45,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1773 backedges. 0 proven. 261 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-28 04:49:46,852 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:47,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:47,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108914939] [2024-11-28 04:49:47,144 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:49:47,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179929843] [2024-11-28 04:49:47,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179929843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:47,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:49:47,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:49:47,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961878982] [2024-11-28 04:49:47,144 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:47,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:49:47,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:47,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:49:47,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-28 04:49:47,146 INFO L87 Difference]: Start difference. First operand 2324 states and 3145 transitions. Second operand has 14 states, 13 states have (on average 9.384615384615385) internal successors, (122), 14 states have internal predecessors, (122), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-28 04:49:48,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:48,357 INFO L93 Difference]: Finished difference Result 2369 states and 3197 transitions. [2024-11-28 04:49:48,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:49:48,357 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 9.384615384615385) internal successors, (122), 14 states have internal predecessors, (122), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) Word has length 259 [2024-11-28 04:49:48,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:48,365 INFO L225 Difference]: With dead ends: 2369 [2024-11-28 04:49:48,365 INFO L226 Difference]: Without dead ends: 2367 [2024-11-28 04:49:48,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:49:48,366 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 114 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:48,366 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 337 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:49:48,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2367 states. [2024-11-28 04:49:48,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2367 to 2364. [2024-11-28 04:49:48,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2364 states, 1899 states have (on average 1.2095839915745128) internal successors, (2297), 1914 states have internal predecessors, (2297), 448 states have call successors, (448), 1 states have call predecessors, (448), 1 states have return successors, (448), 448 states have call predecessors, (448), 448 states have call successors, (448) [2024-11-28 04:49:48,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2364 states to 2364 states and 3193 transitions. [2024-11-28 04:49:48,955 INFO L78 Accepts]: Start accepts. Automaton has 2364 states and 3193 transitions. Word has length 259 [2024-11-28 04:49:48,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:48,955 INFO L471 AbstractCegarLoop]: Abstraction has 2364 states and 3193 transitions. [2024-11-28 04:49:48,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 9.384615384615385) internal successors, (122), 14 states have internal predecessors, (122), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 11 states have call predecessors, (28), 11 states have call successors, (28) [2024-11-28 04:49:48,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2364 states and 3193 transitions. [2024-11-28 04:49:48,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-28 04:49:48,958 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:48,958 INFO L218 NwaCegarLoop]: trace histogram [28, 28, 28, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 1, 1, 1, 1, 1] [2024-11-28 04:49:48,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-28 04:49:49,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2024-11-28 04:49:49,162 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:49:49,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:49,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1246097152, now seen corresponding path program 4 times [2024-11-28 04:49:49,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:49,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611838589] [2024-11-28 04:49:49,163 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:49:49,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:49,210 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:49:49,211 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:49:49,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166483544] [2024-11-28 04:49:49,212 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:49:49,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:49,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:49,215 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:49,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 04:49:49,342 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:49:49,342 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:49,345 INFO L256 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:49:49,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:49:50,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1779 backedges. 0 proven. 267 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-28 04:49:50,810 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:49:55,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:49:55,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611838589] [2024-11-28 04:49:55,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:49:55,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166483544] [2024-11-28 04:49:55,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166483544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:49:55,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:49:55,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2024-11-28 04:49:55,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539540242] [2024-11-28 04:49:55,543 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:49:55,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 04:49:55,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:49:55,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 04:49:55,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=594, Unknown=1, NotChecked=0, Total=702 [2024-11-28 04:49:55,544 INFO L87 Difference]: Start difference. First operand 2364 states and 3193 transitions. Second operand has 19 states, 18 states have (on average 6.888888888888889) internal successors, (124), 19 states have internal predecessors, (124), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-28 04:49:57,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:49:57,728 INFO L93 Difference]: Finished difference Result 2369 states and 3195 transitions. [2024-11-28 04:49:57,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:49:57,729 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.888888888888889) internal successors, (124), 19 states have internal predecessors, (124), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) Word has length 261 [2024-11-28 04:49:57,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:49:57,738 INFO L225 Difference]: With dead ends: 2369 [2024-11-28 04:49:57,738 INFO L226 Difference]: Without dead ends: 2279 [2024-11-28 04:49:57,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 475 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=235, Invalid=1570, Unknown=1, NotChecked=0, Total=1806 [2024-11-28 04:49:57,740 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 197 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 594 SdHoareTripleChecker+Invalid, 2387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:49:57,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 594 Invalid, 2387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 04:49:57,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2024-11-28 04:49:58,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2278. [2024-11-28 04:49:58,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2278 states, 1829 states have (on average 1.2165117550574085) internal successors, (2225), 1844 states have internal predecessors, (2225), 432 states have call successors, (432), 1 states have call predecessors, (432), 1 states have return successors, (432), 432 states have call predecessors, (432), 432 states have call successors, (432) [2024-11-28 04:49:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2278 states to 2278 states and 3089 transitions. [2024-11-28 04:49:58,270 INFO L78 Accepts]: Start accepts. Automaton has 2278 states and 3089 transitions. Word has length 261 [2024-11-28 04:49:58,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:49:58,271 INFO L471 AbstractCegarLoop]: Abstraction has 2278 states and 3089 transitions. [2024-11-28 04:49:58,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.888888888888889) internal successors, (124), 19 states have internal predecessors, (124), 10 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 10 states have call predecessors, (28), 10 states have call successors, (28) [2024-11-28 04:49:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2278 states and 3089 transitions. [2024-11-28 04:49:58,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-28 04:49:58,273 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:49:58,273 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-28 04:49:58,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-28 04:49:58,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2024-11-28 04:49:58,477 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:49:58,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:49:58,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1579097336, now seen corresponding path program 6 times [2024-11-28 04:49:58,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:49:58,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016914519] [2024-11-28 04:49:58,478 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:49:58,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:49:58,566 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2024-11-28 04:49:58,570 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:49:58,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [970156401] [2024-11-28 04:49:58,572 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:49:58,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:49:58,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:49:58,574 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:49:58,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-28 04:49:58,658 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-28 04:49:58,659 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:49:58,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-28 04:49:58,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:04,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2223 backedges. 178 proven. 176 refuted. 0 times theorem prover too weak. 1869 trivial. 0 not checked. [2024-11-28 04:50:04,534 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:09,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:09,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016914519] [2024-11-28 04:50:09,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:50:09,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970156401] [2024-11-28 04:50:09,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970156401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:09,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:50:09,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-28 04:50:09,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100420449] [2024-11-28 04:50:09,036 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:50:09,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:50:09,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:09,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:50:09,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=300, Unknown=2, NotChecked=0, Total=380 [2024-11-28 04:50:09,038 INFO L87 Difference]: Start difference. First operand 2278 states and 3089 transitions. Second operand has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 04:50:12,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:50:14,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:50:15,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:15,633 INFO L93 Difference]: Finished difference Result 2280 states and 3091 transitions. [2024-11-28 04:50:15,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:50:15,633 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 287 [2024-11-28 04:50:15,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:15,641 INFO L225 Difference]: With dead ends: 2280 [2024-11-28 04:50:15,641 INFO L226 Difference]: Without dead ends: 2275 [2024-11-28 04:50:15,642 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=263, Invalid=857, Unknown=2, NotChecked=0, Total=1122 [2024-11-28 04:50:15,642 INFO L435 NwaCegarLoop]: 14 mSDtfsCounter, 258 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 81 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:15,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 91 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 508 Invalid, 2 Unknown, 0 Unchecked, 5.4s Time] [2024-11-28 04:50:15,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2024-11-28 04:50:16,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 1377. [2024-11-28 04:50:16,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1105 states have (on average 1.1312217194570136) internal successors, (1250), 1116 states have internal predecessors, (1250), 259 states have call successors, (259), 1 states have call predecessors, (259), 1 states have return successors, (259), 259 states have call predecessors, (259), 259 states have call successors, (259) [2024-11-28 04:50:16,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 1768 transitions. [2024-11-28 04:50:16,082 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 1768 transitions. Word has length 287 [2024-11-28 04:50:16,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:16,083 INFO L471 AbstractCegarLoop]: Abstraction has 1377 states and 1768 transitions. [2024-11-28 04:50:16,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.615384615384615) internal successors, (73), 13 states have internal predecessors, (73), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-28 04:50:16,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 1768 transitions. [2024-11-28 04:50:16,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-28 04:50:16,086 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:16,086 INFO L218 NwaCegarLoop]: trace histogram [31, 31, 31, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:16,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2024-11-28 04:50:16,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2024-11-28 04:50:16,290 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:50:16,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:16,291 INFO L85 PathProgramCache]: Analyzing trace with hash 542509168, now seen corresponding path program 2 times [2024-11-28 04:50:16,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:16,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172816130] [2024-11-28 04:50:16,291 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:50:16,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:16,317 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:50:16,317 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:50:16,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2270 backedges. 68 proven. 342 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 04:50:16,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:16,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172816130] [2024-11-28 04:50:16,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172816130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:16,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [32295735] [2024-11-28 04:50:16,760 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:50:16,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:16,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:16,762 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:16,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-28 04:50:16,869 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:50:16,869 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:50:16,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:50:16,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2270 backedges. 188 proven. 342 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-28 04:50:17,272 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:17,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2270 backedges. 68 proven. 342 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-28 04:50:17,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [32295735] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:50:17,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:50:17,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 14 [2024-11-28 04:50:17,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002016235] [2024-11-28 04:50:17,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:50:17,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:50:17,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:17,764 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:50:17,764 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-28 04:50:17,764 INFO L87 Difference]: Start difference. First operand 1377 states and 1768 transitions. Second operand has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 12 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 04:50:20,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:20,094 INFO L93 Difference]: Finished difference Result 1980 states and 2549 transitions. [2024-11-28 04:50:20,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-28 04:50:20,095 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 12 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) Word has length 290 [2024-11-28 04:50:20,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:20,098 INFO L225 Difference]: With dead ends: 1980 [2024-11-28 04:50:20,098 INFO L226 Difference]: Without dead ends: 1282 [2024-11-28 04:50:20,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 572 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=206, Invalid=724, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:50:20,100 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 363 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:20,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 852 Invalid, 1922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1862 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:50:20,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2024-11-28 04:50:20,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1093. [2024-11-28 04:50:20,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 877 states have (on average 1.1185860889395667) internal successors, (981), 888 states have internal predecessors, (981), 203 states have call successors, (203), 1 states have call predecessors, (203), 1 states have return successors, (203), 203 states have call predecessors, (203), 203 states have call successors, (203) [2024-11-28 04:50:20,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1387 transitions. [2024-11-28 04:50:20,334 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1387 transitions. Word has length 290 [2024-11-28 04:50:20,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:20,334 INFO L471 AbstractCegarLoop]: Abstraction has 1093 states and 1387 transitions. [2024-11-28 04:50:20,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.214285714285714) internal successors, (171), 14 states have internal predecessors, (171), 12 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (39), 12 states have call predecessors, (39), 12 states have call successors, (39) [2024-11-28 04:50:20,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1387 transitions. [2024-11-28 04:50:20,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-28 04:50:20,337 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:20,337 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-28 04:50:20,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-28 04:50:20,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-28 04:50:20,538 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:50:20,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:20,538 INFO L85 PathProgramCache]: Analyzing trace with hash -835389260, now seen corresponding path program 5 times [2024-11-28 04:50:20,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:20,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138078467] [2024-11-28 04:50:20,539 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:50:20,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:20,601 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-11-28 04:50:20,601 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:50:20,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2000954455] [2024-11-28 04:50:20,602 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:50:20,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:20,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:20,606 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:20,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-28 04:50:20,751 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-11-28 04:50:20,751 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:50:20,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 04:50:20,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:21,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2344 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-28 04:50:21,960 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:22,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:22,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138078467] [2024-11-28 04:50:22,132 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:50:22,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000954455] [2024-11-28 04:50:22,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000954455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:22,132 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:50:22,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2024-11-28 04:50:22,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397696300] [2024-11-28 04:50:22,132 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:50:22,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:50:22,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:22,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:50:22,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:50:22,134 INFO L87 Difference]: Start difference. First operand 1093 states and 1387 transitions. Second operand has 17 states, 16 states have (on average 8.6875) internal successors, (139), 17 states have internal predecessors, (139), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-28 04:50:23,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:23,289 INFO L93 Difference]: Finished difference Result 1137 states and 1439 transitions. [2024-11-28 04:50:23,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:50:23,290 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 8.6875) internal successors, (139), 17 states have internal predecessors, (139), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) Word has length 296 [2024-11-28 04:50:23,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:23,293 INFO L225 Difference]: With dead ends: 1137 [2024-11-28 04:50:23,293 INFO L226 Difference]: Without dead ends: 1135 [2024-11-28 04:50:23,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:50:23,294 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 115 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 933 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:23,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 293 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 933 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:50:23,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1135 states. [2024-11-28 04:50:23,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1135 to 1133. [2024-11-28 04:50:23,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 910 states have (on average 1.1153846153846154) internal successors, (1015), 921 states have internal predecessors, (1015), 210 states have call successors, (210), 1 states have call predecessors, (210), 1 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2024-11-28 04:50:23,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1435 transitions. [2024-11-28 04:50:23,518 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1435 transitions. Word has length 296 [2024-11-28 04:50:23,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:23,519 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1435 transitions. [2024-11-28 04:50:23,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 8.6875) internal successors, (139), 17 states have internal predecessors, (139), 12 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 12 states have call predecessors, (32), 12 states have call successors, (32) [2024-11-28 04:50:23,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1435 transitions. [2024-11-28 04:50:23,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2024-11-28 04:50:23,521 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:23,521 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2024-11-28 04:50:23,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-28 04:50:23,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-28 04:50:23,726 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:50:23,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:23,727 INFO L85 PathProgramCache]: Analyzing trace with hash 349807350, now seen corresponding path program 5 times [2024-11-28 04:50:23,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:23,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496608814] [2024-11-28 04:50:23,727 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:50:23,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:23,792 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-11-28 04:50:23,793 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:50:23,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1322715577] [2024-11-28 04:50:23,795 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:50:23,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:23,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:23,797 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:23,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-28 04:50:23,943 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2024-11-28 04:50:23,944 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:50:23,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 04:50:23,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:25,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2350 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-28 04:50:25,709 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:34,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:34,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496608814] [2024-11-28 04:50:34,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:50:34,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322715577] [2024-11-28 04:50:34,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322715577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:34,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:50:34,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2024-11-28 04:50:34,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557406533] [2024-11-28 04:50:34,659 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:50:34,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 04:50:34,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:34,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 04:50:34,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=791, Unknown=2, NotChecked=0, Total=930 [2024-11-28 04:50:34,660 INFO L87 Difference]: Start difference. First operand 1133 states and 1435 transitions. Second operand has 21 states, 20 states have (on average 7.05) internal successors, (141), 21 states have internal predecessors, (141), 11 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-28 04:50:37,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:37,016 INFO L93 Difference]: Finished difference Result 1137 states and 1437 transitions. [2024-11-28 04:50:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:50:37,017 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 7.05) internal successors, (141), 21 states have internal predecessors, (141), 11 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) Word has length 298 [2024-11-28 04:50:37,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:37,020 INFO L225 Difference]: With dead ends: 1137 [2024-11-28 04:50:37,020 INFO L226 Difference]: Without dead ends: 1093 [2024-11-28 04:50:37,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 545 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=297, Invalid=2053, Unknown=2, NotChecked=0, Total=2352 [2024-11-28 04:50:37,021 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 245 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 2472 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 2515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:37,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 543 Invalid, 2515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2472 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:50:37,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-11-28 04:50:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1093. [2024-11-28 04:50:37,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1093 states, 877 states have (on average 1.1174458380843786) internal successors, (980), 888 states have internal predecessors, (980), 203 states have call successors, (203), 1 states have call predecessors, (203), 1 states have return successors, (203), 203 states have call predecessors, (203), 203 states have call successors, (203) [2024-11-28 04:50:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1093 states to 1093 states and 1386 transitions. [2024-11-28 04:50:37,373 INFO L78 Accepts]: Start accepts. Automaton has 1093 states and 1386 transitions. Word has length 298 [2024-11-28 04:50:37,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:37,373 INFO L471 AbstractCegarLoop]: Abstraction has 1093 states and 1386 transitions. [2024-11-28 04:50:37,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 7.05) internal successors, (141), 21 states have internal predecessors, (141), 11 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 11 states have call predecessors, (32), 11 states have call successors, (32) [2024-11-28 04:50:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1093 states and 1386 transitions. [2024-11-28 04:50:37,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-28 04:50:37,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:37,376 INFO L218 NwaCegarLoop]: trace histogram [35, 35, 35, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:37,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-28 04:50:37,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:37,576 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:50:37,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:37,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2070929350, now seen corresponding path program 3 times [2024-11-28 04:50:37,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:37,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666644803] [2024-11-28 04:50:37,577 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:50:37,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:37,633 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-28 04:50:37,633 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:50:37,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592113447] [2024-11-28 04:50:37,639 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:50:37,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:37,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:37,641 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:37,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-28 04:50:37,714 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 04:50:37,714 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:50:37,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:50:37,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:38,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2930 backedges. 389 proven. 40 refuted. 0 times theorem prover too weak. 2501 trivial. 0 not checked. [2024-11-28 04:50:38,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:38,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:38,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666644803] [2024-11-28 04:50:38,909 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:50:38,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592113447] [2024-11-28 04:50:38,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592113447] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:38,909 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:50:38,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-28 04:50:38,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656916308] [2024-11-28 04:50:38,909 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:50:38,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 04:50:38,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:38,910 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 04:50:38,910 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:50:38,911 INFO L87 Difference]: Start difference. First operand 1093 states and 1386 transitions. Second operand has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 04:50:40,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:40,285 INFO L93 Difference]: Finished difference Result 1097 states and 1391 transitions. [2024-11-28 04:50:40,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 04:50:40,286 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 327 [2024-11-28 04:50:40,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:40,288 INFO L225 Difference]: With dead ends: 1097 [2024-11-28 04:50:40,288 INFO L226 Difference]: Without dead ends: 1093 [2024-11-28 04:50:40,288 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:50:40,289 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 125 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:40,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 221 Invalid, 860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:50:40,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1093 states. [2024-11-28 04:50:40,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1093 to 1089. [2024-11-28 04:50:40,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1089 states, 877 states have (on average 1.096921322690992) internal successors, (962), 884 states have internal predecessors, (962), 203 states have call successors, (203), 1 states have call predecessors, (203), 1 states have return successors, (203), 203 states have call predecessors, (203), 203 states have call successors, (203) [2024-11-28 04:50:40,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1089 states to 1089 states and 1368 transitions. [2024-11-28 04:50:40,506 INFO L78 Accepts]: Start accepts. Automaton has 1089 states and 1368 transitions. Word has length 327 [2024-11-28 04:50:40,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:40,507 INFO L471 AbstractCegarLoop]: Abstraction has 1089 states and 1368 transitions. [2024-11-28 04:50:40,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.545454545454546) internal successors, (72), 12 states have internal predecessors, (72), 3 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 04:50:40,507 INFO L276 IsEmpty]: Start isEmpty. Operand 1089 states and 1368 transitions. [2024-11-28 04:50:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-11-28 04:50:40,510 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:40,510 INFO L218 NwaCegarLoop]: trace histogram [36, 36, 36, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-28 04:50:40,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:40,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:40,714 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:50:40,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:40,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1348925306, now seen corresponding path program 6 times [2024-11-28 04:50:40,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:40,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539847692] [2024-11-28 04:50:40,715 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:50:40,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:40,794 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2024-11-28 04:50:40,794 INFO L230 tOrderPrioritization]: Conjunction of SSA is unknown [2024-11-28 04:50:40,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1018886344] [2024-11-28 04:50:40,796 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:50:40,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:40,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:40,799 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:40,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2024-11-28 04:50:40,971 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:50:40,971 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:50:40,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:50:40,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3000 backedges. 339 proven. 337 refuted. 0 times theorem prover too weak. 2324 trivial. 0 not checked. [2024-11-28 04:50:42,080 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:42,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:42,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539847692] [2024-11-28 04:50:42,710 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 04:50:42,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018886344] [2024-11-28 04:50:42,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018886344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:42,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:50:42,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-28 04:50:42,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725391124] [2024-11-28 04:50:42,710 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 04:50:42,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 04:50:42,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:42,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 04:50:42,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:50:42,712 INFO L87 Difference]: Start difference. First operand 1089 states and 1368 transitions. Second operand has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 04:50:44,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:50:45,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:45,694 INFO L93 Difference]: Finished difference Result 1089 states and 1368 transitions. [2024-11-28 04:50:45,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-28 04:50:45,695 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 333 [2024-11-28 04:50:45,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:45,698 INFO L225 Difference]: With dead ends: 1089 [2024-11-28 04:50:45,699 INFO L226 Difference]: Without dead ends: 908 [2024-11-28 04:50:45,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 331 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=159, Invalid=543, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:50:45,700 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 102 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 38 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:45,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 100 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 370 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2024-11-28 04:50:45,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2024-11-28 04:50:45,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 592. [2024-11-28 04:50:45,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 592 states, 476 states have (on average 1.0399159663865547) internal successors, (495), 477 states have internal predecessors, (495), 113 states have call successors, (113), 1 states have call predecessors, (113), 1 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-28 04:50:45,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 721 transitions. [2024-11-28 04:50:45,916 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 721 transitions. Word has length 333 [2024-11-28 04:50:45,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:45,916 INFO L471 AbstractCegarLoop]: Abstraction has 592 states and 721 transitions. [2024-11-28 04:50:45,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.583333333333333) internal successors, (79), 13 states have internal predecessors, (79), 4 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-28 04:50:45,917 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 721 transitions. [2024-11-28 04:50:45,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-28 04:50:45,919 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:45,920 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:45,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2024-11-28 04:50:46,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-28 04:50:46,120 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:50:46,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:46,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1493943744, now seen corresponding path program 1 times [2024-11-28 04:50:46,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:46,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566185759] [2024-11-28 04:50:46,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:46,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:46,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4236 backedges. 357 proven. 162 refuted. 0 times theorem prover too weak. 3717 trivial. 0 not checked. [2024-11-28 04:50:46,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:46,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566185759] [2024-11-28 04:50:46,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566185759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:46,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [710720456] [2024-11-28 04:50:46,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:50:46,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:46,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:46,444 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:46,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2024-11-28 04:50:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:50:46,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 04:50:46,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:47,195 INFO L134 CoverageAnalysis]: Checked inductivity of 4236 backedges. 779 proven. 621 refuted. 0 times theorem prover too weak. 2836 trivial. 0 not checked. [2024-11-28 04:50:47,195 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4236 backedges. 171 proven. 621 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-28 04:50:47,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [710720456] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:50:47,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:50:47,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 13] total 23 [2024-11-28 04:50:47,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105471914] [2024-11-28 04:50:47,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:50:47,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:50:47,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:47,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:50:47,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:50:47,926 INFO L87 Difference]: Start difference. First operand 592 states and 721 transitions. Second operand has 23 states, 23 states have (on average 13.08695652173913) internal successors, (301), 23 states have internal predecessors, (301), 19 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 19 states have call predecessors, (73), 19 states have call successors, (73) [2024-11-28 04:50:53,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:50:53,782 INFO L93 Difference]: Finished difference Result 1255 states and 1525 transitions. [2024-11-28 04:50:53,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2024-11-28 04:50:53,782 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 13.08695652173913) internal successors, (301), 23 states have internal predecessors, (301), 19 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 19 states have call predecessors, (73), 19 states have call successors, (73) Word has length 385 [2024-11-28 04:50:53,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:50:53,785 INFO L225 Difference]: With dead ends: 1255 [2024-11-28 04:50:53,785 INFO L226 Difference]: Without dead ends: 998 [2024-11-28 04:50:53,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 845 GetRequests, 757 SyntacticMatches, 7 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1671 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1373, Invalid=5433, Unknown=0, NotChecked=0, Total=6806 [2024-11-28 04:50:53,787 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 687 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 4314 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 4486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 4314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:50:53,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1904 Invalid, 4486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 4314 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-28 04:50:53,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2024-11-28 04:50:54,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 788. [2024-11-28 04:50:54,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 635 states have (on average 1.0377952755905513) internal successors, (659), 635 states have internal predecessors, (659), 151 states have call successors, (151), 1 states have call predecessors, (151), 1 states have return successors, (151), 151 states have call predecessors, (151), 151 states have call successors, (151) [2024-11-28 04:50:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 961 transitions. [2024-11-28 04:50:54,134 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 961 transitions. Word has length 385 [2024-11-28 04:50:54,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:50:54,134 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 961 transitions. [2024-11-28 04:50:54,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 13.08695652173913) internal successors, (301), 23 states have internal predecessors, (301), 19 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 19 states have call predecessors, (73), 19 states have call successors, (73) [2024-11-28 04:50:54,135 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 961 transitions. [2024-11-28 04:50:54,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-28 04:50:54,137 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:50:54,138 INFO L218 NwaCegarLoop]: trace histogram [42, 42, 42, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 04:50:54,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2024-11-28 04:50:54,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:54,338 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:50:54,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:50:54,339 INFO L85 PathProgramCache]: Analyzing trace with hash 511332380, now seen corresponding path program 3 times [2024-11-28 04:50:54,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:50:54,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170155377] [2024-11-28 04:50:54,339 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:50:54,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:50:54,370 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-28 04:50:54,370 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:50:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4249 backedges. 206 proven. 294 refuted. 0 times theorem prover too weak. 3749 trivial. 0 not checked. [2024-11-28 04:50:54,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:50:54,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170155377] [2024-11-28 04:50:54,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170155377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:54,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964245641] [2024-11-28 04:50:54,767 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:50:54,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:50:54,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:50:54,769 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:50:54,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-11-28 04:50:54,857 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:50:54,858 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:50:54,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 04:50:54,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:50:56,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4249 backedges. 366 proven. 272 refuted. 0 times theorem prover too weak. 3611 trivial. 0 not checked. [2024-11-28 04:50:56,608 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:50:57,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964245641] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:50:57,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:50:57,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 16] total 22 [2024-11-28 04:50:57,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947532547] [2024-11-28 04:50:57,523 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:50:57,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:50:57,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:50:57,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:50:57,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2024-11-28 04:50:57,525 INFO L87 Difference]: Start difference. First operand 788 states and 961 transitions. Second operand has 23 states, 21 states have (on average 8.285714285714286) internal successors, (174), 22 states have internal predecessors, (174), 11 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 11 states have call predecessors, (37), 11 states have call successors, (37) [2024-11-28 04:51:02,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:51:03,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:03,603 INFO L93 Difference]: Finished difference Result 916 states and 1118 transitions. [2024-11-28 04:51:03,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-28 04:51:03,603 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 8.285714285714286) internal successors, (174), 22 states have internal predecessors, (174), 11 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 11 states have call predecessors, (37), 11 states have call successors, (37) Word has length 390 [2024-11-28 04:51:03,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:03,606 INFO L225 Difference]: With dead ends: 916 [2024-11-28 04:51:03,606 INFO L226 Difference]: Without dead ends: 915 [2024-11-28 04:51:03,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=631, Invalid=2339, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 04:51:03,607 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 218 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:03,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 343 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-28 04:51:03,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2024-11-28 04:51:04,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 913. [2024-11-28 04:51:04,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 740 states have (on average 1.0391891891891891) internal successors, (769), 740 states have internal predecessors, (769), 171 states have call successors, (171), 1 states have call predecessors, (171), 1 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2024-11-28 04:51:04,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1111 transitions. [2024-11-28 04:51:04,024 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1111 transitions. Word has length 390 [2024-11-28 04:51:04,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:04,024 INFO L471 AbstractCegarLoop]: Abstraction has 913 states and 1111 transitions. [2024-11-28 04:51:04,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 8.285714285714286) internal successors, (174), 22 states have internal predecessors, (174), 11 states have call successors, (37), 1 states have call predecessors, (37), 2 states have return successors, (37), 11 states have call predecessors, (37), 11 states have call successors, (37) [2024-11-28 04:51:04,025 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1111 transitions. [2024-11-28 04:51:04,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-28 04:51:04,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:04,028 INFO L218 NwaCegarLoop]: trace histogram [43, 43, 43, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-28 04:51:04,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2024-11-28 04:51:04,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:04,232 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:51:04,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:04,233 INFO L85 PathProgramCache]: Analyzing trace with hash 575625632, now seen corresponding path program 4 times [2024-11-28 04:51:04,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:04,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553543464] [2024-11-28 04:51:04,233 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:51:04,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:04,295 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:51:04,296 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:51:04,947 INFO L134 CoverageAnalysis]: Checked inductivity of 4380 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 04:51:04,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:04,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553543464] [2024-11-28 04:51:04,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553543464] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:04,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155662544] [2024-11-28 04:51:04,947 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-28 04:51:04,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:04,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:04,950 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:04,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-11-28 04:51:05,129 INFO L229 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-28 04:51:05,130 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:51:05,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:51:05,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:06,447 INFO L134 CoverageAnalysis]: Checked inductivity of 4380 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 04:51:06,447 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:07,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4380 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-28 04:51:07,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155662544] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:51:07,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:51:07,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 37 [2024-11-28 04:51:07,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494149360] [2024-11-28 04:51:07,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:07,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-28 04:51:07,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:07,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-28 04:51:07,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=355, Invalid=1051, Unknown=0, NotChecked=0, Total=1406 [2024-11-28 04:51:07,297 INFO L87 Difference]: Start difference. First operand 913 states and 1111 transitions. Second operand has 38 states, 37 states have (on average 14.243243243243244) internal successors, (527), 38 states have internal predecessors, (527), 36 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 36 states have call predecessors, (123), 36 states have call successors, (123) [2024-11-28 04:51:10,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:10,189 INFO L93 Difference]: Finished difference Result 1764 states and 2142 transitions. [2024-11-28 04:51:10,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-28 04:51:10,190 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 14.243243243243244) internal successors, (527), 38 states have internal predecessors, (527), 36 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 36 states have call predecessors, (123), 36 states have call successors, (123) Word has length 398 [2024-11-28 04:51:10,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:10,193 INFO L225 Difference]: With dead ends: 1764 [2024-11-28 04:51:10,194 INFO L226 Difference]: Without dead ends: 1392 [2024-11-28 04:51:10,195 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 830 GetRequests, 772 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1130 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=966, Invalid=2574, Unknown=0, NotChecked=0, Total=3540 [2024-11-28 04:51:10,196 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 1171 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:10,196 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 706 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 04:51:10,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2024-11-28 04:51:10,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1106. [2024-11-28 04:51:10,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 896 states have (on average 1.0357142857142858) internal successors, (928), 896 states have internal predecessors, (928), 208 states have call successors, (208), 1 states have call predecessors, (208), 1 states have return successors, (208), 208 states have call predecessors, (208), 208 states have call successors, (208) [2024-11-28 04:51:10,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1344 transitions. [2024-11-28 04:51:10,579 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1344 transitions. Word has length 398 [2024-11-28 04:51:10,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:10,579 INFO L471 AbstractCegarLoop]: Abstraction has 1106 states and 1344 transitions. [2024-11-28 04:51:10,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 14.243243243243244) internal successors, (527), 38 states have internal predecessors, (527), 36 states have call successors, (123), 1 states have call predecessors, (123), 1 states have return successors, (123), 36 states have call predecessors, (123), 36 states have call successors, (123) [2024-11-28 04:51:10,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1344 transitions. [2024-11-28 04:51:10,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2024-11-28 04:51:10,582 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:10,582 INFO L218 NwaCegarLoop]: trace histogram [55, 55, 55, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-28 04:51:10,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:10,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:10,783 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:51:10,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:10,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1514854834, now seen corresponding path program 5 times [2024-11-28 04:51:10,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:10,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588172341] [2024-11-28 04:51:10,783 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:51:10,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:10,857 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-11-28 04:51:10,857 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:51:11,607 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 380 proven. 984 refuted. 0 times theorem prover too weak. 5956 trivial. 0 not checked. [2024-11-28 04:51:11,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:11,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588172341] [2024-11-28 04:51:11,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588172341] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:11,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368188893] [2024-11-28 04:51:11,608 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-28 04:51:11,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:11,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:11,610 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:11,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-11-28 04:51:11,813 INFO L229 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2024-11-28 04:51:11,813 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:51:11,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:51:11,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 2036 proven. 984 refuted. 0 times theorem prover too weak. 4300 trivial. 0 not checked. [2024-11-28 04:51:12,544 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:13,397 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 380 proven. 984 refuted. 0 times theorem prover too weak. 5956 trivial. 0 not checked. [2024-11-28 04:51:13,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368188893] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:51:13,397 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:51:13,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 20 [2024-11-28 04:51:13,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923945229] [2024-11-28 04:51:13,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:13,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:51:13,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:13,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:51:13,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:51:13,400 INFO L87 Difference]: Start difference. First operand 1106 states and 1344 transitions. Second operand has 20 states, 20 states have (on average 14.6) internal successors, (292), 20 states have internal predecessors, (292), 18 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 18 states have call predecessors, (73), 18 states have call successors, (73) [2024-11-28 04:51:18,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:18,812 INFO L93 Difference]: Finished difference Result 2203 states and 2671 transitions. [2024-11-28 04:51:18,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-28 04:51:18,812 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 14.6) internal successors, (292), 20 states have internal predecessors, (292), 18 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 18 states have call predecessors, (73), 18 states have call successors, (73) Word has length 509 [2024-11-28 04:51:18,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:18,817 INFO L225 Difference]: With dead ends: 2203 [2024-11-28 04:51:18,817 INFO L226 Difference]: Without dead ends: 1813 [2024-11-28 04:51:18,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1066 GetRequests, 1005 SyntacticMatches, 13 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=487, Invalid=1963, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 04:51:18,820 INFO L435 NwaCegarLoop]: 209 mSDtfsCounter, 381 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 4327 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 4425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 4327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:18,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 2111 Invalid, 4425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 4327 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 04:51:18,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2024-11-28 04:51:19,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1370. [2024-11-28 04:51:19,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1370 states, 1110 states have (on average 1.0360360360360361) internal successors, (1150), 1110 states have internal predecessors, (1150), 258 states have call successors, (258), 1 states have call predecessors, (258), 1 states have return successors, (258), 258 states have call predecessors, (258), 258 states have call successors, (258) [2024-11-28 04:51:19,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1370 states to 1370 states and 1666 transitions. [2024-11-28 04:51:19,438 INFO L78 Accepts]: Start accepts. Automaton has 1370 states and 1666 transitions. Word has length 509 [2024-11-28 04:51:19,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:19,438 INFO L471 AbstractCegarLoop]: Abstraction has 1370 states and 1666 transitions. [2024-11-28 04:51:19,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 14.6) internal successors, (292), 20 states have internal predecessors, (292), 18 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (73), 18 states have call predecessors, (73), 18 states have call successors, (73) [2024-11-28 04:51:19,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1370 states and 1666 transitions. [2024-11-28 04:51:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2024-11-28 04:51:19,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:19,443 INFO L218 NwaCegarLoop]: trace histogram [59, 59, 59, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-28 04:51:19,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2024-11-28 04:51:19,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:19,647 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:51:19,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:19,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1661608872, now seen corresponding path program 6 times [2024-11-28 04:51:19,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:19,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466295475] [2024-11-28 04:51:19,648 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:51:19,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:19,683 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-11-28 04:51:19,683 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:51:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 8470 backedges. 82 proven. 1037 refuted. 0 times theorem prover too weak. 7351 trivial. 0 not checked. [2024-11-28 04:51:19,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:19,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466295475] [2024-11-28 04:51:19,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466295475] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:19,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370129125] [2024-11-28 04:51:19,982 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-28 04:51:19,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:19,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:19,984 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:19,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2024-11-28 04:51:20,118 INFO L229 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-28 04:51:20,118 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:51:20,120 INFO L256 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 04:51:20,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:21,210 INFO L134 CoverageAnalysis]: Checked inductivity of 8470 backedges. 225 proven. 913 refuted. 0 times theorem prover too weak. 7332 trivial. 0 not checked. [2024-11-28 04:51:21,210 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:21,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370129125] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:21,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:51:21,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 16 [2024-11-28 04:51:21,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337772499] [2024-11-28 04:51:21,597 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:21,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-28 04:51:21,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:21,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-28 04:51:21,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:51:21,599 INFO L87 Difference]: Start difference. First operand 1370 states and 1666 transitions. Second operand has 17 states, 16 states have (on average 11.375) internal successors, (182), 17 states have internal predecessors, (182), 10 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 10 states have call predecessors, (38), 10 states have call successors, (38) [2024-11-28 04:51:23,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:23,462 INFO L93 Difference]: Finished difference Result 1371 states and 1666 transitions. [2024-11-28 04:51:23,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 04:51:23,463 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 11.375) internal successors, (182), 17 states have internal predecessors, (182), 10 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 10 states have call predecessors, (38), 10 states have call successors, (38) Word has length 546 [2024-11-28 04:51:23,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:23,465 INFO L225 Difference]: With dead ends: 1371 [2024-11-28 04:51:23,465 INFO L226 Difference]: Without dead ends: 1228 [2024-11-28 04:51:23,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 595 GetRequests, 563 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 04:51:23,466 INFO L435 NwaCegarLoop]: 19 mSDtfsCounter, 159 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:23,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 232 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:51:23,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2024-11-28 04:51:23,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1228. [2024-11-28 04:51:23,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 995 states have (on average 1.0291457286432162) internal successors, (1024), 995 states have internal predecessors, (1024), 231 states have call successors, (231), 1 states have call predecessors, (231), 1 states have return successors, (231), 231 states have call predecessors, (231), 231 states have call successors, (231) [2024-11-28 04:51:23,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1486 transitions. [2024-11-28 04:51:23,923 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1486 transitions. Word has length 546 [2024-11-28 04:51:23,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:23,923 INFO L471 AbstractCegarLoop]: Abstraction has 1228 states and 1486 transitions. [2024-11-28 04:51:23,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 11.375) internal successors, (182), 17 states have internal predecessors, (182), 10 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 10 states have call predecessors, (38), 10 states have call successors, (38) [2024-11-28 04:51:23,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1486 transitions. [2024-11-28 04:51:23,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2024-11-28 04:51:23,929 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:23,929 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-28 04:51:23,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2024-11-28 04:51:24,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:24,133 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:51:24,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:24,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1718499562, now seen corresponding path program 7 times [2024-11-28 04:51:24,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:24,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109709084] [2024-11-28 04:51:24,134 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:51:24,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:25,415 INFO L134 CoverageAnalysis]: Checked inductivity of 9705 backedges. 0 proven. 1893 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-28 04:51:25,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:25,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109709084] [2024-11-28 04:51:25,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109709084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:25,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1321619767] [2024-11-28 04:51:25,416 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-28 04:51:25,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:25,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:25,418 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:25,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2024-11-28 04:51:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:25,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 04:51:25,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 9705 backedges. 0 proven. 1893 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-28 04:51:27,128 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:28,496 INFO L134 CoverageAnalysis]: Checked inductivity of 9705 backedges. 0 proven. 1893 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-11-28 04:51:28,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1321619767] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:51:28,497 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:51:28,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 53 [2024-11-28 04:51:28,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709001203] [2024-11-28 04:51:28,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:28,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-28 04:51:28,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:28,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-28 04:51:28,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=890, Invalid=1972, Unknown=0, NotChecked=0, Total=2862 [2024-11-28 04:51:28,500 INFO L87 Difference]: Start difference. First operand 1228 states and 1486 transitions. Second operand has 54 states, 53 states have (on average 14.88679245283019) internal successors, (789), 54 states have internal predecessors, (789), 52 states have call successors, (185), 1 states have call predecessors, (185), 1 states have return successors, (185), 52 states have call predecessors, (185), 52 states have call successors, (185) [2024-11-28 04:51:32,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:32,719 INFO L93 Difference]: Finished difference Result 2336 states and 2825 transitions. [2024-11-28 04:51:32,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-28 04:51:32,719 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 14.88679245283019) internal successors, (789), 54 states have internal predecessors, (789), 52 states have call successors, (185), 1 states have call predecessors, (185), 1 states have return successors, (185), 52 states have call predecessors, (185), 52 states have call successors, (185) Word has length 583 [2024-11-28 04:51:32,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:32,723 INFO L225 Difference]: With dead ends: 2336 [2024-11-28 04:51:32,723 INFO L226 Difference]: Without dead ends: 1892 [2024-11-28 04:51:32,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1213 GetRequests, 1131 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2826 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2174, Invalid=4798, Unknown=0, NotChecked=0, Total=6972 [2024-11-28 04:51:32,725 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 1689 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 1210 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:32,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 763 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1210 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:51:32,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1892 states. [2024-11-28 04:51:33,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1892 to 1509. [2024-11-28 04:51:33,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1222 states have (on average 1.0286415711947627) internal successors, (1257), 1222 states have internal predecessors, (1257), 285 states have call successors, (285), 1 states have call predecessors, (285), 1 states have return successors, (285), 285 states have call predecessors, (285), 285 states have call successors, (285) [2024-11-28 04:51:33,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1827 transitions. [2024-11-28 04:51:33,219 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1827 transitions. Word has length 583 [2024-11-28 04:51:33,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:33,219 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 1827 transitions. [2024-11-28 04:51:33,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 14.88679245283019) internal successors, (789), 54 states have internal predecessors, (789), 52 states have call successors, (185), 1 states have call predecessors, (185), 1 states have return successors, (185), 52 states have call predecessors, (185), 52 states have call successors, (185) [2024-11-28 04:51:33,219 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1827 transitions. [2024-11-28 04:51:33,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2024-11-28 04:51:33,223 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:33,223 INFO L218 NwaCegarLoop]: trace histogram [67, 67, 67, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-28 04:51:33,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2024-11-28 04:51:33,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:33,423 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:51:33,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:33,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1713896864, now seen corresponding path program 8 times [2024-11-28 04:51:33,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:33,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78308998] [2024-11-28 04:51:33,424 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:51:33,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:33,469 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:51:33,469 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:51:34,451 INFO L134 CoverageAnalysis]: Checked inductivity of 11025 backedges. 701 proven. 1431 refuted. 0 times theorem prover too weak. 8893 trivial. 0 not checked. [2024-11-28 04:51:34,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:34,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78308998] [2024-11-28 04:51:34,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78308998] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:34,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114693684] [2024-11-28 04:51:34,451 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:51:34,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:34,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:34,453 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:34,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2024-11-28 04:51:34,627 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:51:34,627 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:51:34,632 INFO L256 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 04:51:34,638 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:35,503 INFO L134 CoverageAnalysis]: Checked inductivity of 11025 backedges. 3509 proven. 1431 refuted. 0 times theorem prover too weak. 6085 trivial. 0 not checked. [2024-11-28 04:51:35,504 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 11025 backedges. 701 proven. 1431 refuted. 0 times theorem prover too weak. 8893 trivial. 0 not checked. [2024-11-28 04:51:36,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114693684] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:51:36,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:51:36,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-28 04:51:36,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327978137] [2024-11-28 04:51:36,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:36,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 04:51:36,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:36,516 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 04:51:36,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:51:36,516 INFO L87 Difference]: Start difference. First operand 1509 states and 1827 transitions. Second operand has 23 states, 23 states have (on average 14.956521739130435) internal successors, (344), 23 states have internal predecessors, (344), 21 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 21 states have call predecessors, (85), 21 states have call successors, (85) [2024-11-28 04:51:43,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:51:43,950 INFO L93 Difference]: Finished difference Result 3013 states and 3639 transitions. [2024-11-28 04:51:43,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-28 04:51:43,950 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 14.956521739130435) internal successors, (344), 23 states have internal predecessors, (344), 21 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 21 states have call predecessors, (85), 21 states have call successors, (85) Word has length 620 [2024-11-28 04:51:43,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:51:43,956 INFO L225 Difference]: With dead ends: 3013 [2024-11-28 04:51:43,956 INFO L226 Difference]: Without dead ends: 2518 [2024-11-28 04:51:43,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1297 GetRequests, 1224 SyntacticMatches, 15 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 726 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=649, Invalid=2891, Unknown=0, NotChecked=0, Total=3540 [2024-11-28 04:51:43,958 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 491 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 6053 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 6183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 6053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:51:43,959 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 2869 Invalid, 6183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 6053 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 04:51:43,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2024-11-28 04:51:44,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 1815. [2024-11-28 04:51:44,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1470 states have (on average 1.0292517006802722) internal successors, (1513), 1470 states have internal predecessors, (1513), 343 states have call successors, (343), 1 states have call predecessors, (343), 1 states have return successors, (343), 343 states have call predecessors, (343), 343 states have call successors, (343) [2024-11-28 04:51:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2199 transitions. [2024-11-28 04:51:44,618 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2199 transitions. Word has length 620 [2024-11-28 04:51:44,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:51:44,619 INFO L471 AbstractCegarLoop]: Abstraction has 1815 states and 2199 transitions. [2024-11-28 04:51:44,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 14.956521739130435) internal successors, (344), 23 states have internal predecessors, (344), 21 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (85), 21 states have call predecessors, (85), 21 states have call successors, (85) [2024-11-28 04:51:44,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2199 transitions. [2024-11-28 04:51:44,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2024-11-28 04:51:44,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:51:44,624 INFO L218 NwaCegarLoop]: trace histogram [71, 71, 71, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1] [2024-11-28 04:51:44,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2024-11-28 04:51:44,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2024-11-28 04:51:44,824 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-28 04:51:44,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:51:44,825 INFO L85 PathProgramCache]: Analyzing trace with hash -958802518, now seen corresponding path program 9 times [2024-11-28 04:51:44,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:51:44,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916126827] [2024-11-28 04:51:44,825 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:51:44,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:51:44,885 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2024-11-28 04:51:44,885 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:51:45,478 INFO L134 CoverageAnalysis]: Checked inductivity of 12430 backedges. 220 proven. 1763 refuted. 0 times theorem prover too weak. 10447 trivial. 0 not checked. [2024-11-28 04:51:45,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:51:45,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916126827] [2024-11-28 04:51:45,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916126827] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:45,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023055585] [2024-11-28 04:51:45,479 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 04:51:45,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:51:45,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:51:45,482 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:51:45,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2024-11-28 04:51:45,591 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-28 04:51:45,591 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:51:45,593 INFO L256 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-28 04:51:45,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:51:48,089 INFO L134 CoverageAnalysis]: Checked inductivity of 12430 backedges. 943 proven. 87 refuted. 0 times theorem prover too weak. 11400 trivial. 0 not checked. [2024-11-28 04:51:48,089 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:48,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023055585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:48,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:51:48,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2024-11-28 04:51:48,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540775593] [2024-11-28 04:51:48,593 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:51:48,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:51:48,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:51:48,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:51:48,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:51:48,595 INFO L87 Difference]: Start difference. First operand 1815 states and 2199 transitions. Second operand has 20 states, 18 states have (on average 11.61111111111111) internal successors, (209), 19 states have internal predecessors, (209), 13 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (45), 13 states have call predecessors, (45), 13 states have call successors, (45) [2024-11-28 04:51:53,762 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 [0] [2024-11-28 04:52:03,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:52:07,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-28 04:52:22,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:52:22,983 INFO L93 Difference]: Finished difference Result 1817 states and 2201 transitions. [2024-11-28 04:52:22,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-28 04:52:22,984 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 11.61111111111111) internal successors, (209), 19 states have internal predecessors, (209), 13 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (45), 13 states have call predecessors, (45), 13 states have call successors, (45) Word has length 657 [2024-11-28 04:52:22,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:52:22,986 INFO L225 Difference]: With dead ends: 1817 [2024-11-28 04:52:22,986 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:52:22,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 676 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 574 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=705, Invalid=2157, Unknown=0, NotChecked=0, Total=2862 [2024-11-28 04:52:22,991 INFO L435 NwaCegarLoop]: 24 mSDtfsCounter, 267 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 83 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:52:22,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 278 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 790 Invalid, 2 Unknown, 0 Unchecked, 23.4s Time] [2024-11-28 04:52:22,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:52:22,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:52:22,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:52:22,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:52:22,995 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 657 [2024-11-28 04:52:22,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:52:22,995 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:52:22,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 11.61111111111111) internal successors, (209), 19 states have internal predecessors, (209), 13 states have call successors, (44), 1 states have call predecessors, (44), 2 states have return successors, (45), 13 states have call predecessors, (45), 13 states have call successors, (45) [2024-11-28 04:52:22,995 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:52:22,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:52:22,998 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 30 remaining) [2024-11-28 04:52:22,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 30 remaining) [2024-11-28 04:52:22,999 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 30 remaining) [2024-11-28 04:52:23,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 30 remaining) [2024-11-28 04:52:23,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 30 remaining) [2024-11-28 04:52:23,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 30 remaining) [2024-11-28 04:52:23,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 30 remaining) [2024-11-28 04:52:23,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 30 remaining) [2024-11-28 04:52:23,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 30 remaining) [2024-11-28 04:52:23,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 30 remaining) [2024-11-28 04:52:23,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 30 remaining) [2024-11-28 04:52:23,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 30 remaining) [2024-11-28 04:52:23,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 30 remaining) [2024-11-28 04:52:23,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 30 remaining) [2024-11-28 04:52:23,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 30 remaining) [2024-11-28 04:52:23,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 30 remaining) [2024-11-28 04:52:23,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 30 remaining) [2024-11-28 04:52:23,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 30 remaining) [2024-11-28 04:52:23,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 30 remaining) [2024-11-28 04:52:23,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 30 remaining) [2024-11-28 04:52:23,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 30 remaining) [2024-11-28 04:52:23,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 30 remaining) [2024-11-28 04:52:23,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 30 remaining) [2024-11-28 04:52:23,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 30 remaining) [2024-11-28 04:52:23,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 30 remaining) [2024-11-28 04:52:23,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 30 remaining) [2024-11-28 04:52:23,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 30 remaining) [2024-11-28 04:52:23,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 30 remaining) [2024-11-28 04:52:23,002 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 30 remaining) [2024-11-28 04:52:23,003 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 30 remaining) [2024-11-28 04:52:23,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2024-11-28 04:52:23,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb434bac-522b-4363-92d7-6adeba35052a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable60 [2024-11-28 04:52:23,210 INFO L422 BasicCegarLoop]: Path program histogram: [9, 6, 6, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:52:23,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:56:16,116 WARN L286 SmtUtils]: Spent 3.88m on a formula simplification. DAG size of input: 1147 DAG size of output: 1188 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)