./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:09:10,570 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:09:10,695 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-06 23:09:10,699 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:09:10,700 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:09:10,738 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:09:10,740 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:09:10,741 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:09:10,742 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:09:10,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:09:10,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:09:10,748 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:09:10,748 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:09:10,750 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:09:10,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:09:10,751 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:09:10,751 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:09:10,751 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:09:10,752 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:09:10,752 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:09:10,752 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:09:10,753 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:09:10,753 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 23:09:10,754 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:09:10,754 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:09:10,754 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:09:10,755 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:09:10,756 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:09:10,756 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:09:10,756 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:09:10,759 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:09:10,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:09:10,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:09:10,760 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:09:10,760 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:09:10,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:09:10,760 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:09:10,760 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:09:10,761 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:09:10,761 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:09:10,761 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:09:10,761 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c [2023-11-06 23:09:11,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:09:11,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:09:11,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:09:11,150 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:09:11,151 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:09:11,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2023-11-06 23:09:14,210 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:09:14,603 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:09:14,603 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2023-11-06 23:09:14,639 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/data/ac83f844b/779e84d6356f499380b31f228b77e5ba/FLAGbe3cca19a [2023-11-06 23:09:14,655 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/data/ac83f844b/779e84d6356f499380b31f228b77e5ba [2023-11-06 23:09:14,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:09:14,659 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:09:14,661 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:09:14,661 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:09:14,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:09:14,670 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f4a42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:14, skipping insertion in model container [2023-11-06 23:09:14,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:09:14" (1/1) ... [2023-11-06 23:09:14,749 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:09:15,420 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:09:15,439 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:09:15,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:09:15,645 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:09:15,652 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:09:15,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15 WrapperNode [2023-11-06 23:09:15,652 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:09:15,654 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:09:15,654 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:09:15,654 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:09:15,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (1/1) ... [2023-11-06 23:09:15,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (1/1) ... [2023-11-06 23:09:15,799 INFO L138 Inliner]: procedures = 177, calls = 390, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1905 [2023-11-06 23:09:15,799 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:09:15,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:09:15,831 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:09:15,831 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:09:15,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (1/1) ... [2023-11-06 23:09:15,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (1/1) ... [2023-11-06 23:09:15,862 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (1/1) ... [2023-11-06 23:09:15,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (1/1) ... [2023-11-06 23:09:15,925 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (1/1) ... [2023-11-06 23:09:15,946 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (1/1) ... [2023-11-06 23:09:15,953 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (1/1) ... [2023-11-06 23:09:15,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (1/1) ... [2023-11-06 23:09:15,978 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:09:15,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:09:15,979 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:09:15,979 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:09:15,987 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (1/1) ... [2023-11-06 23:09:15,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:09:16,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:16,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:09:16,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:09:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 23:09:16,057 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 23:09:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:09:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 23:09:16,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 23:09:16,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:09:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 23:09:16,058 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 23:09:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:09:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:09:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 23:09:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:09:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 23:09:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 23:09:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:09:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:09:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:09:16,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:09:16,326 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:09:16,329 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:09:19,606 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:09:19,618 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:09:19,619 INFO L302 CfgBuilder]: Removed 83 assume(true) statements. [2023-11-06 23:09:19,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:09:19 BoogieIcfgContainer [2023-11-06 23:09:19,622 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:09:19,625 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:09:19,625 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:09:19,628 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:09:19,628 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:09:14" (1/3) ... [2023-11-06 23:09:19,629 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e857d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:09:19, skipping insertion in model container [2023-11-06 23:09:19,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:09:15" (2/3) ... [2023-11-06 23:09:19,630 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e857d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:09:19, skipping insertion in model container [2023-11-06 23:09:19,630 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:09:19" (3/3) ... [2023-11-06 23:09:19,631 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-1.i [2023-11-06 23:09:19,652 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:09:19,652 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-06 23:09:19,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:09:19,741 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@2227d814, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:09:19,741 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-11-06 23:09:19,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 526 states, 499 states have (on average 1.7094188376753507) internal successors, (853), 516 states have internal predecessors, (853), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 23:09:19,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 23:09:19,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:19,755 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 23:09:19,756 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:19,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:19,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1377095142, now seen corresponding path program 1 times [2023-11-06 23:09:19,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:19,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237864030] [2023-11-06 23:09:19,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:19,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:19,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:19,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:19,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237864030] [2023-11-06 23:09:19,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237864030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:19,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:19,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:09:19,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346681769] [2023-11-06 23:09:19,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:19,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:09:19,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:19,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:09:19,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:09:19,989 INFO L87 Difference]: Start difference. First operand has 526 states, 499 states have (on average 1.7094188376753507) internal successors, (853), 516 states have internal predecessors, (853), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:09:20,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:20,071 INFO L93 Difference]: Finished difference Result 1046 states and 1760 transitions. [2023-11-06 23:09:20,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:09:20,073 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-06 23:09:20,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:20,091 INFO L225 Difference]: With dead ends: 1046 [2023-11-06 23:09:20,091 INFO L226 Difference]: Without dead ends: 515 [2023-11-06 23:09:20,096 INFO L412 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 [2023-11-06 23:09:20,100 INFO L413 NwaCegarLoop]: 782 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, 782 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 [2023-11-06 23:09:20,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:09:20,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-11-06 23:09:20,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2023-11-06 23:09:20,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 494 states have (on average 1.5222672064777327) internal successors, (752), 506 states have internal predecessors, (752), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 23:09:20,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 774 transitions. [2023-11-06 23:09:20,212 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 774 transitions. Word has length 6 [2023-11-06 23:09:20,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:20,212 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 774 transitions. [2023-11-06 23:09:20,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:09:20,213 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 774 transitions. [2023-11-06 23:09:20,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 23:09:20,214 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:20,214 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:20,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:09:20,215 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:20,215 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:20,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1572045411, now seen corresponding path program 1 times [2023-11-06 23:09:20,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:20,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366454910] [2023-11-06 23:09:20,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:20,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:20,237 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:20,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [987107847] [2023-11-06 23:09:20,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:20,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:20,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:20,243 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:20,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 23:09:20,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:20,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 23:09:20,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:20,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:20,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:20,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366454910] [2023-11-06 23:09:20,548 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:20,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987107847] [2023-11-06 23:09:20,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987107847] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:20,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:20,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:09:20,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972349298] [2023-11-06 23:09:20,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:20,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:09:20,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:20,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:09:20,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:20,560 INFO L87 Difference]: Start difference. First operand 515 states and 774 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-06 23:09:20,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:20,727 INFO L93 Difference]: Finished difference Result 1179 states and 1784 transitions. [2023-11-06 23:09:20,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:09:20,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-06 23:09:20,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:20,739 INFO L225 Difference]: With dead ends: 1179 [2023-11-06 23:09:20,739 INFO L226 Difference]: Without dead ends: 1017 [2023-11-06 23:09:20,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:20,744 INFO L413 NwaCegarLoop]: 767 mSDtfsCounter, 738 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:20,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 1523 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:09:20,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2023-11-06 23:09:20,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 668. [2023-11-06 23:09:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 642 states have (on average 1.5327102803738317) internal successors, (984), 659 states have internal predecessors, (984), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 23:09:20,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1016 transitions. [2023-11-06 23:09:20,806 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1016 transitions. Word has length 7 [2023-11-06 23:09:20,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:20,806 INFO L495 AbstractCegarLoop]: Abstraction has 668 states and 1016 transitions. [2023-11-06 23:09:20,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-06 23:09:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1016 transitions. [2023-11-06 23:09:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 23:09:20,808 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:20,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:20,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:21,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-06 23:09:21,015 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:21,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:21,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1613794471, now seen corresponding path program 1 times [2023-11-06 23:09:21,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:21,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178242765] [2023-11-06 23:09:21,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:21,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:21,070 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:21,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [994700784] [2023-11-06 23:09:21,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:21,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:21,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:21,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:21,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 23:09:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:21,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:09:21,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:21,298 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:21,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:21,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178242765] [2023-11-06 23:09:21,299 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:21,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994700784] [2023-11-06 23:09:21,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994700784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:21,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:21,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:09:21,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696112617] [2023-11-06 23:09:21,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:21,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:09:21,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:21,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:09:21,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:21,302 INFO L87 Difference]: Start difference. First operand 668 states and 1016 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-06 23:09:21,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:21,414 INFO L93 Difference]: Finished difference Result 1018 states and 1536 transitions. [2023-11-06 23:09:21,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:09:21,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-06 23:09:21,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:21,422 INFO L225 Difference]: With dead ends: 1018 [2023-11-06 23:09:21,423 INFO L226 Difference]: Without dead ends: 1015 [2023-11-06 23:09:21,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:21,425 INFO L413 NwaCegarLoop]: 765 mSDtfsCounter, 731 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:21,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 1521 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:09:21,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2023-11-06 23:09:21,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 672. [2023-11-06 23:09:21,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 672 states, 646 states have (on average 1.5263157894736843) internal successors, (986), 663 states have internal predecessors, (986), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 23:09:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1018 transitions. [2023-11-06 23:09:21,474 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1018 transitions. Word has length 7 [2023-11-06 23:09:21,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:21,475 INFO L495 AbstractCegarLoop]: Abstraction has 672 states and 1018 transitions. [2023-11-06 23:09:21,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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) [2023-11-06 23:09:21,476 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1018 transitions. [2023-11-06 23:09:21,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 23:09:21,493 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:21,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:21,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:21,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:21,699 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:21,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:21,700 INFO L85 PathProgramCache]: Analyzing trace with hash -271889225, now seen corresponding path program 1 times [2023-11-06 23:09:21,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:21,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748943302] [2023-11-06 23:09:21,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:21,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:21,863 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:21,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112511703] [2023-11-06 23:09:21,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:21,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:21,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:21,868 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:21,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 23:09:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:22,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:09:22,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:22,410 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:22,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:22,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748943302] [2023-11-06 23:09:22,410 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:22,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112511703] [2023-11-06 23:09:22,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112511703] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:22,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:22,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:09:22,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790346457] [2023-11-06 23:09:22,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:22,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:09:22,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:22,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:09:22,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:22,414 INFO L87 Difference]: Start difference. First operand 672 states and 1018 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2023-11-06 23:09:22,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:22,545 INFO L93 Difference]: Finished difference Result 1358 states and 2060 transitions. [2023-11-06 23:09:22,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:09:22,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2023-11-06 23:09:22,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:22,551 INFO L225 Difference]: With dead ends: 1358 [2023-11-06 23:09:22,552 INFO L226 Difference]: Without dead ends: 693 [2023-11-06 23:09:22,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:22,557 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 9 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:22,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1493 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:09:22,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-11-06 23:09:22,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 692. [2023-11-06 23:09:22,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 666 states have (on average 1.5105105105105106) internal successors, (1006), 683 states have internal predecessors, (1006), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 23:09:22,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1038 transitions. [2023-11-06 23:09:22,595 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1038 transitions. Word has length 151 [2023-11-06 23:09:22,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:22,596 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 1038 transitions. [2023-11-06 23:09:22,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2023-11-06 23:09:22,597 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1038 transitions. [2023-11-06 23:09:22,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 23:09:22,601 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:22,602 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:22,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:22,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:22,809 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:22,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:22,810 INFO L85 PathProgramCache]: Analyzing trace with hash 162616373, now seen corresponding path program 1 times [2023-11-06 23:09:22,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:22,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212475128] [2023-11-06 23:09:22,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:22,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:22,932 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:22,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769986760] [2023-11-06 23:09:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:22,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:22,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:22,935 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:22,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 23:09:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:23,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:09:23,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:23,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:23,474 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:23,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:23,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212475128] [2023-11-06 23:09:23,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:23,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769986760] [2023-11-06 23:09:23,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769986760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:23,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:23,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:09:23,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247662336] [2023-11-06 23:09:23,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:23,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:09:23,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:23,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:09:23,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:23,477 INFO L87 Difference]: Start difference. First operand 692 states and 1038 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2023-11-06 23:09:23,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:23,585 INFO L93 Difference]: Finished difference Result 1398 states and 2100 transitions. [2023-11-06 23:09:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:09:23,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2023-11-06 23:09:23,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:23,592 INFO L225 Difference]: With dead ends: 1398 [2023-11-06 23:09:23,592 INFO L226 Difference]: Without dead ends: 713 [2023-11-06 23:09:23,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:23,594 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 9 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:23,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1493 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:09:23,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2023-11-06 23:09:23,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 712. [2023-11-06 23:09:23,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 712 states, 686 states have (on average 1.4956268221574345) internal successors, (1026), 703 states have internal predecessors, (1026), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 23:09:23,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 712 states to 712 states and 1058 transitions. [2023-11-06 23:09:23,622 INFO L78 Accepts]: Start accepts. Automaton has 712 states and 1058 transitions. Word has length 151 [2023-11-06 23:09:23,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:23,623 INFO L495 AbstractCegarLoop]: Abstraction has 712 states and 1058 transitions. [2023-11-06 23:09:23,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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) [2023-11-06 23:09:23,623 INFO L276 IsEmpty]: Start isEmpty. Operand 712 states and 1058 transitions. [2023-11-06 23:09:23,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 23:09:23,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:23,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:23,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:23,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:23,834 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:23,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:23,834 INFO L85 PathProgramCache]: Analyzing trace with hash 217009271, now seen corresponding path program 1 times [2023-11-06 23:09:23,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:23,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17841997] [2023-11-06 23:09:23,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:23,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:23,934 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:23,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41525835] [2023-11-06 23:09:23,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:23,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:23,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:23,943 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:23,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 23:09:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:24,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:09:24,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:24,484 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:24,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:24,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17841997] [2023-11-06 23:09:24,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:24,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41525835] [2023-11-06 23:09:24,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41525835] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:24,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:24,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:09:24,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309629794] [2023-11-06 23:09:24,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:24,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:09:24,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:24,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:09:24,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:09:24,487 INFO L87 Difference]: Start difference. First operand 712 states and 1058 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2023-11-06 23:09:24,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:24,625 INFO L93 Difference]: Finished difference Result 1404 states and 2096 transitions. [2023-11-06 23:09:24,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:09:24,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 151 [2023-11-06 23:09:24,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:24,632 INFO L225 Difference]: With dead ends: 1404 [2023-11-06 23:09:24,632 INFO L226 Difference]: Without dead ends: 699 [2023-11-06 23:09:24,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:09:24,634 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 165 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 2087 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:24,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 2087 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:09:24,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2023-11-06 23:09:24,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 698. [2023-11-06 23:09:24,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 672 states have (on average 1.4955357142857142) internal successors, (1005), 689 states have internal predecessors, (1005), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 23:09:24,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1037 transitions. [2023-11-06 23:09:24,662 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1037 transitions. Word has length 151 [2023-11-06 23:09:24,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:24,663 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 1037 transitions. [2023-11-06 23:09:24,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2023-11-06 23:09:24,663 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1037 transitions. [2023-11-06 23:09:24,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 23:09:24,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:24,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:24,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:24,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-06 23:09:24,874 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:24,874 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:24,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1666222715, now seen corresponding path program 1 times [2023-11-06 23:09:24,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:24,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001711838] [2023-11-06 23:09:24,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:24,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:24,984 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:24,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1255525681] [2023-11-06 23:09:24,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:24,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:24,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:24,988 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:25,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 23:09:25,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:25,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:09:25,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:25,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:25,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:25,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:25,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001711838] [2023-11-06 23:09:25,517 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:25,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255525681] [2023-11-06 23:09:25,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255525681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:25,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:25,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:09:25,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459504824] [2023-11-06 23:09:25,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:25,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:09:25,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:25,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:09:25,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:09:25,522 INFO L87 Difference]: Start difference. First operand 698 states and 1037 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2023-11-06 23:09:25,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:25,632 INFO L93 Difference]: Finished difference Result 1376 states and 2054 transitions. [2023-11-06 23:09:25,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:09:25,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 151 [2023-11-06 23:09:25,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:25,641 INFO L225 Difference]: With dead ends: 1376 [2023-11-06 23:09:25,642 INFO L226 Difference]: Without dead ends: 685 [2023-11-06 23:09:25,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:09:25,645 INFO L413 NwaCegarLoop]: 740 mSDtfsCounter, 165 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:25,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 2066 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:09:25,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2023-11-06 23:09:25,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 684. [2023-11-06 23:09:25,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 658 states have (on average 1.4954407294832828) internal successors, (984), 675 states have internal predecessors, (984), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 23:09:25,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1016 transitions. [2023-11-06 23:09:25,669 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1016 transitions. Word has length 151 [2023-11-06 23:09:25,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:25,670 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 1016 transitions. [2023-11-06 23:09:25,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2023-11-06 23:09:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1016 transitions. [2023-11-06 23:09:25,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-06 23:09:25,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:25,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:25,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:25,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-06 23:09:25,880 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:25,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:25,881 INFO L85 PathProgramCache]: Analyzing trace with hash -143142857, now seen corresponding path program 1 times [2023-11-06 23:09:25,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:25,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992793287] [2023-11-06 23:09:25,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:25,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:25,960 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:25,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1465496127] [2023-11-06 23:09:25,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:25,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:25,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:25,962 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:25,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 23:09:26,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:26,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:09:26,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:26,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:26,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:26,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:26,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992793287] [2023-11-06 23:09:26,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:26,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465496127] [2023-11-06 23:09:26,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465496127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:26,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:26,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:09:26,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985572674] [2023-11-06 23:09:26,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:26,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:09:26,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:26,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:09:26,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:09:26,784 INFO L87 Difference]: Start difference. First operand 684 states and 1016 transitions. Second operand has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 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) [2023-11-06 23:09:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:26,860 INFO L93 Difference]: Finished difference Result 684 states and 1016 transitions. [2023-11-06 23:09:26,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:09:26,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 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 151 [2023-11-06 23:09:26,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:26,865 INFO L225 Difference]: With dead ends: 684 [2023-11-06 23:09:26,865 INFO L226 Difference]: Without dead ends: 682 [2023-11-06 23:09:26,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:09:26,867 INFO L413 NwaCegarLoop]: 741 mSDtfsCounter, 579 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:26,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 1500 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:09:26,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-11-06 23:09:26,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 682. [2023-11-06 23:09:26,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 658 states have (on average 1.4924012158054711) internal successors, (982), 673 states have internal predecessors, (982), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 8 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 23:09:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1014 transitions. [2023-11-06 23:09:26,894 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1014 transitions. Word has length 151 [2023-11-06 23:09:26,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:26,895 INFO L495 AbstractCegarLoop]: Abstraction has 682 states and 1014 transitions. [2023-11-06 23:09:26,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.333333333333336) internal successors, (151), 4 states have internal predecessors, (151), 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) [2023-11-06 23:09:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1014 transitions. [2023-11-06 23:09:26,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-06 23:09:26,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:26,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:26,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:27,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:27,106 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:27,106 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash -142459799, now seen corresponding path program 1 times [2023-11-06 23:09:27,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:27,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463085536] [2023-11-06 23:09:27,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:27,186 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:27,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1449965783] [2023-11-06 23:09:27,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:27,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:27,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:27,187 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:27,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 23:09:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:27,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:09:27,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:28,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:28,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:28,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463085536] [2023-11-06 23:09:28,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:28,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449965783] [2023-11-06 23:09:28,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449965783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:28,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:28,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:09:28,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395375274] [2023-11-06 23:09:28,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:28,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:09:28,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:28,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:09:28,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:09:28,048 INFO L87 Difference]: Start difference. First operand 682 states and 1014 transitions. Second operand has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 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) [2023-11-06 23:09:28,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:28,147 INFO L93 Difference]: Finished difference Result 1036 states and 1526 transitions. [2023-11-06 23:09:28,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:09:28,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 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 152 [2023-11-06 23:09:28,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:28,154 INFO L225 Difference]: With dead ends: 1036 [2023-11-06 23:09:28,155 INFO L226 Difference]: Without dead ends: 1035 [2023-11-06 23:09:28,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:09:28,158 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 572 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:28,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 2403 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:09:28,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1035 states. [2023-11-06 23:09:28,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1035 to 1033. [2023-11-06 23:09:28,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 1003 states have (on average 1.4765702891326022) internal successors, (1481), 1018 states have internal predecessors, (1481), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 14 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-06 23:09:28,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1525 transitions. [2023-11-06 23:09:28,197 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1525 transitions. Word has length 152 [2023-11-06 23:09:28,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:28,204 INFO L495 AbstractCegarLoop]: Abstraction has 1033 states and 1525 transitions. [2023-11-06 23:09:28,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 50.666666666666664) internal successors, (152), 4 states have internal predecessors, (152), 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) [2023-11-06 23:09:28,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1525 transitions. [2023-11-06 23:09:28,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-11-06 23:09:28,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:28,209 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:28,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:28,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:28,418 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:28,418 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:28,418 INFO L85 PathProgramCache]: Analyzing trace with hash -2100076302, now seen corresponding path program 1 times [2023-11-06 23:09:28,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:28,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694580130] [2023-11-06 23:09:28,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:28,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:28,500 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:28,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661853005] [2023-11-06 23:09:28,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:28,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:28,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:28,501 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:28,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 23:09:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:29,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 23:09:29,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:29,578 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:29,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:29,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:29,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694580130] [2023-11-06 23:09:29,579 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:29,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661853005] [2023-11-06 23:09:29,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661853005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:29,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:29,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:09:29,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617660571] [2023-11-06 23:09:29,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:29,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:09:29,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:29,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:09:29,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:29,582 INFO L87 Difference]: Start difference. First operand 1033 states and 1525 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2023-11-06 23:09:29,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:29,694 INFO L93 Difference]: Finished difference Result 1915 states and 2846 transitions. [2023-11-06 23:09:29,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:09:29,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 157 [2023-11-06 23:09:29,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:29,704 INFO L225 Difference]: With dead ends: 1915 [2023-11-06 23:09:29,705 INFO L226 Difference]: Without dead ends: 1187 [2023-11-06 23:09:29,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:29,707 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 495 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:29,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 1671 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:09:29,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1187 states. [2023-11-06 23:09:29,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1187 to 1183. [2023-11-06 23:09:29,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1143 states have (on average 1.489063867016623) internal successors, (1702), 1168 states have internal predecessors, (1702), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-06 23:09:29,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1766 transitions. [2023-11-06 23:09:29,754 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1766 transitions. Word has length 157 [2023-11-06 23:09:29,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:29,755 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1766 transitions. [2023-11-06 23:09:29,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2023-11-06 23:09:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1766 transitions. [2023-11-06 23:09:29,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-06 23:09:29,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:29,758 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:29,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:29,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-06 23:09:29,967 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:29,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:29,967 INFO L85 PathProgramCache]: Analyzing trace with hash 606241550, now seen corresponding path program 1 times [2023-11-06 23:09:29,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:29,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668297212] [2023-11-06 23:09:29,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:29,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:30,101 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:30,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1551100744] [2023-11-06 23:09:30,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:30,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:30,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:30,104 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:30,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 23:09:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:30,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 23:09:30,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:30,971 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-06 23:09:30,971 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:30,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:30,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668297212] [2023-11-06 23:09:30,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:30,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551100744] [2023-11-06 23:09:30,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551100744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:30,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:30,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:09:30,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899742477] [2023-11-06 23:09:30,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:30,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:09:30,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:30,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:09:30,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:30,975 INFO L87 Difference]: Start difference. First operand 1183 states and 1766 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2023-11-06 23:09:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:31,059 INFO L93 Difference]: Finished difference Result 2233 states and 3337 transitions. [2023-11-06 23:09:31,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:09:31,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 172 [2023-11-06 23:09:31,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:31,071 INFO L225 Difference]: With dead ends: 2233 [2023-11-06 23:09:31,071 INFO L226 Difference]: Without dead ends: 1181 [2023-11-06 23:09:31,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:09:31,074 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 123 mSDsluCounter, 742 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:31,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1499 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:09:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2023-11-06 23:09:31,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 1181. [2023-11-06 23:09:31,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 1141 states have (on average 1.4890446976336547) internal successors, (1699), 1166 states have internal predecessors, (1699), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 16 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-06 23:09:31,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1763 transitions. [2023-11-06 23:09:31,123 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1763 transitions. Word has length 172 [2023-11-06 23:09:31,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:31,124 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 1763 transitions. [2023-11-06 23:09:31,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2023-11-06 23:09:31,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1763 transitions. [2023-11-06 23:09:31,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-11-06 23:09:31,127 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:31,127 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:31,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:31,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:31,337 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:31,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:31,337 INFO L85 PathProgramCache]: Analyzing trace with hash 366255644, now seen corresponding path program 1 times [2023-11-06 23:09:31,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:31,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407817966] [2023-11-06 23:09:31,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:31,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:31,470 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:31,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1580674298] [2023-11-06 23:09:31,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:31,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:31,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:31,472 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:31,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 23:09:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:32,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-06 23:09:32,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:32,327 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 23:09:32,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:32,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:32,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407817966] [2023-11-06 23:09:32,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:32,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580674298] [2023-11-06 23:09:32,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580674298] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:32,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:32,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:09:32,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218900878] [2023-11-06 23:09:32,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:32,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:09:32,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:32,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:09:32,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:09:32,332 INFO L87 Difference]: Start difference. First operand 1181 states and 1763 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 23:09:32,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:32,413 INFO L93 Difference]: Finished difference Result 2240 states and 3356 transitions. [2023-11-06 23:09:32,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:09:32,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 187 [2023-11-06 23:09:32,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:32,422 INFO L225 Difference]: With dead ends: 2240 [2023-11-06 23:09:32,422 INFO L226 Difference]: Without dead ends: 1184 [2023-11-06 23:09:32,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:09:32,425 INFO L413 NwaCegarLoop]: 754 mSDtfsCounter, 2 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:32,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2255 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:09:32,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1184 states. [2023-11-06 23:09:32,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1184 to 1184. [2023-11-06 23:09:32,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 1143 states have (on average 1.489063867016623) internal successors, (1702), 1169 states have internal predecessors, (1702), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2023-11-06 23:09:32,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1770 transitions. [2023-11-06 23:09:32,476 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1770 transitions. Word has length 187 [2023-11-06 23:09:32,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:32,477 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 1770 transitions. [2023-11-06 23:09:32,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-06 23:09:32,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1770 transitions. [2023-11-06 23:09:32,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-06 23:09:32,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:32,481 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:32,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:32,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:32,694 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:32,694 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:32,694 INFO L85 PathProgramCache]: Analyzing trace with hash 120078168, now seen corresponding path program 1 times [2023-11-06 23:09:32,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:32,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299935616] [2023-11-06 23:09:32,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:32,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:32,794 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:32,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1568933237] [2023-11-06 23:09:32,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:32,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:32,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:32,796 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:32,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 23:09:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:33,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-06 23:09:33,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:33,754 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 23:09:33,779 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:09:34,205 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:34,206 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-06 23:09:34,383 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-06 23:09:34,383 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:34,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:34,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299935616] [2023-11-06 23:09:34,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:34,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568933237] [2023-11-06 23:09:34,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568933237] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:34,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:34,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-06 23:09:34,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052041899] [2023-11-06 23:09:34,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:34,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-06 23:09:34,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:34,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-06 23:09:34,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-06 23:09:34,387 INFO L87 Difference]: Start difference. First operand 1184 states and 1770 transitions. Second operand has 12 states, 12 states have (on average 14.25) internal successors, (171), 12 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 23:09:38,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:38,542 INFO L93 Difference]: Finished difference Result 2328 states and 3471 transitions. [2023-11-06 23:09:38,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 23:09:38,544 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.25) internal successors, (171), 12 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 191 [2023-11-06 23:09:38,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:38,552 INFO L225 Difference]: With dead ends: 2328 [2023-11-06 23:09:38,552 INFO L226 Difference]: Without dead ends: 1227 [2023-11-06 23:09:38,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2023-11-06 23:09:38,555 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 1492 mSDsluCounter, 3878 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 4568 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:38,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 4568 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-06 23:09:38,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2023-11-06 23:09:38,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1216. [2023-11-06 23:09:38,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 1175 states have (on average 1.48) internal successors, (1739), 1201 states have internal predecessors, (1739), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2023-11-06 23:09:38,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1807 transitions. [2023-11-06 23:09:38,607 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1807 transitions. Word has length 191 [2023-11-06 23:09:38,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:38,607 INFO L495 AbstractCegarLoop]: Abstraction has 1216 states and 1807 transitions. [2023-11-06 23:09:38,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.25) internal successors, (171), 12 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 23:09:38,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1807 transitions. [2023-11-06 23:09:38,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-11-06 23:09:38,611 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:38,611 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:38,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:38,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 23:09:38,823 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:38,823 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:38,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1803172262, now seen corresponding path program 1 times [2023-11-06 23:09:38,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:38,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398876964] [2023-11-06 23:09:38,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:38,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:38,929 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:38,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [504337108] [2023-11-06 23:09:38,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:38,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:38,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:38,931 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:38,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 23:09:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:39,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:09:39,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:39,769 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-06 23:09:39,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:39,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:39,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398876964] [2023-11-06 23:09:39,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:39,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504337108] [2023-11-06 23:09:39,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504337108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:39,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:39,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 23:09:39,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500945845] [2023-11-06 23:09:39,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:39,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:09:39,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:39,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:09:39,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:09:39,773 INFO L87 Difference]: Start difference. First operand 1216 states and 1807 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 23:09:39,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:39,953 INFO L93 Difference]: Finished difference Result 2517 states and 3774 transitions. [2023-11-06 23:09:39,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:09:39,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 191 [2023-11-06 23:09:39,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:39,962 INFO L225 Difference]: With dead ends: 2517 [2023-11-06 23:09:39,963 INFO L226 Difference]: Without dead ends: 1404 [2023-11-06 23:09:39,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:09:39,966 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 142 mSDsluCounter, 2196 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2939 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:39,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2939 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:09:39,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2023-11-06 23:09:40,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1239. [2023-11-06 23:09:40,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 1198 states have (on average 1.4699499165275458) internal successors, (1761), 1224 states have internal predecessors, (1761), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2023-11-06 23:09:40,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1829 transitions. [2023-11-06 23:09:40,024 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1829 transitions. Word has length 191 [2023-11-06 23:09:40,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:40,024 INFO L495 AbstractCegarLoop]: Abstraction has 1239 states and 1829 transitions. [2023-11-06 23:09:40,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 23:09:40,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1829 transitions. [2023-11-06 23:09:40,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-06 23:09:40,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:40,028 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:40,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:40,238 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-06 23:09:40,239 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:40,239 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:40,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1292140283, now seen corresponding path program 1 times [2023-11-06 23:09:40,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:40,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706554119] [2023-11-06 23:09:40,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:40,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:40,335 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:40,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2018217048] [2023-11-06 23:09:40,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:40,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:40,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:40,337 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:40,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 23:09:41,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:41,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 48 conjunts are in the unsatisfiable core [2023-11-06 23:09:41,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:41,580 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 23:09:41,603 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:09:42,131 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:09:42,131 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 23 [2023-11-06 23:09:42,469 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-11-06 23:09:42,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:09:42,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:42,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706554119] [2023-11-06 23:09:42,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:09:42,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018217048] [2023-11-06 23:09:42,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018217048] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:42,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:42,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-11-06 23:09:42,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860874293] [2023-11-06 23:09:42,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:42,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 23:09:42,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:42,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 23:09:42,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-11-06 23:09:42,473 INFO L87 Difference]: Start difference. First operand 1239 states and 1829 transitions. Second operand has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 14 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 23:09:48,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:09:49,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:49,094 INFO L93 Difference]: Finished difference Result 2374 states and 3519 transitions. [2023-11-06 23:09:49,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 23:09:49,095 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), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 192 [2023-11-06 23:09:49,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:49,102 INFO L225 Difference]: With dead ends: 2374 [2023-11-06 23:09:49,102 INFO L226 Difference]: Without dead ends: 1250 [2023-11-06 23:09:49,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2023-11-06 23:09:49,106 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 1490 mSDsluCounter, 5925 mSDsCounter, 0 mSdLazyCounter, 2058 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 6614 SdHoareTripleChecker+Invalid, 2073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:49,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 6614 Invalid, 2073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2058 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-06 23:09:49,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2023-11-06 23:09:49,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1241. [2023-11-06 23:09:49,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 1200 states have (on average 1.4691666666666667) internal successors, (1763), 1226 states have internal predecessors, (1763), 32 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (36), 16 states have call predecessors, (36), 32 states have call successors, (36) [2023-11-06 23:09:49,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1831 transitions. [2023-11-06 23:09:49,151 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1831 transitions. Word has length 192 [2023-11-06 23:09:49,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:49,152 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1831 transitions. [2023-11-06 23:09:49,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 12.285714285714286) internal successors, (172), 14 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-06 23:09:49,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1831 transitions. [2023-11-06 23:09:49,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-11-06 23:09:49,155 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:49,156 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:49,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-06 23:09:49,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:49,368 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-11-06 23:09:49,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:49,368 INFO L85 PathProgramCache]: Analyzing trace with hash 257218385, now seen corresponding path program 1 times [2023-11-06 23:09:49,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:49,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410371478] [2023-11-06 23:09:49,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:49,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:49,469 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-06 23:09:49,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [939278639] [2023-11-06 23:09:49,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:49,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 23:09:49,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:09:49,471 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 23:09:49,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-06 23:09:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:51,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 216 conjunts are in the unsatisfiable core [2023-11-06 23:09:51,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:09:51,395 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:09:51,421 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 23:09:51,452 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:09:51,456 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-06 23:09:51,684 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-06 23:09:51,703 INFO L322 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-06 23:09:51,704 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-11-06 23:09:51,714 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-06 23:09:51,786 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-06 23:09:51,791 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-06 23:09:52,020 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-06 23:09:52,021 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-06 23:09:52,032 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-06 23:09:56,781 INFO L217 Elim1Store]: Index analysis took 204 ms [2023-11-06 23:12:56,394 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-11-06 23:12:56,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2023-11-06 23:12:56,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:12:56,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410371478] [2023-11-06 23:12:56,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-06 23:12:56,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939278639] [2023-11-06 23:12:56,396 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-11-06 23:12:56,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:56,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-06 23:12:56,597 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne3(DualJunctionSaa.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne2(DualJunctionSaa.java:151) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne1(DualJunctionSaa.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne0(DualJunctionSaa.java:124) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminateOne(DualJunctionSaa.java:108) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryExhaustivelyToEliminate(DualJunctionSaa.java:93) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:88) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:543) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:522) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:515) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:326) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:298) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:54) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:736) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:389) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:648) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:230) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:324) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1(Elim1Store.java:319) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:227) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:190) ... 53 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 71 more [2023-11-06 23:12:56,602 INFO L158 Benchmark]: Toolchain (without parser) took 221942.98ms. Allocated memory was 127.9MB in the beginning and 6.3GB in the end (delta: 6.2GB). Free memory was 88.9MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 4.2GB. Max. memory is 16.1GB. [2023-11-06 23:12:56,603 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:12:56,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 992.25ms. Allocated memory is still 127.9MB. Free memory was 88.6MB in the beginning and 70.6MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 23:12:56,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 145.93ms. Allocated memory is still 127.9MB. Free memory was 70.6MB in the beginning and 59.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 23:12:56,604 INFO L158 Benchmark]: Boogie Preprocessor took 177.76ms. Allocated memory is still 127.9MB. Free memory was 59.2MB in the beginning and 83.4MB in the end (delta: -24.1MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2023-11-06 23:12:56,604 INFO L158 Benchmark]: RCFGBuilder took 3643.81ms. Allocated memory was 127.9MB in the beginning and 161.5MB in the end (delta: 33.6MB). Free memory was 83.4MB in the beginning and 88.6MB in the end (delta: -5.2MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2023-11-06 23:12:56,605 INFO L158 Benchmark]: TraceAbstraction took 216976.63ms. Allocated memory was 161.5MB in the beginning and 6.3GB in the end (delta: 6.1GB). Free memory was 87.6MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 4.2GB. Max. memory is 16.1GB. [2023-11-06 23:12:56,607 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 992.25ms. Allocated memory is still 127.9MB. Free memory was 88.6MB in the beginning and 70.6MB in the end (delta: 18.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 145.93ms. Allocated memory is still 127.9MB. Free memory was 70.6MB in the beginning and 59.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 177.76ms. Allocated memory is still 127.9MB. Free memory was 59.2MB in the beginning and 83.4MB in the end (delta: -24.1MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * RCFGBuilder took 3643.81ms. Allocated memory was 127.9MB in the beginning and 161.5MB in the end (delta: 33.6MB). Free memory was 83.4MB in the beginning and 88.6MB in the end (delta: -5.2MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. * TraceAbstraction took 216976.63ms. Allocated memory was 161.5MB in the beginning and 6.3GB in the end (delta: 6.1GB). Free memory was 87.6MB in the beginning and 3.0GB in the end (delta: -2.9GB). Peak memory consumption was 4.2GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.DualJunctionSaa.tryToEliminate(DualJunctionSaa.java:192) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:12:59,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:13:00,031 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-11-06 23:13:00,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:13:00,043 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:13:00,094 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:13:00,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:13:00,096 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:13:00,097 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:13:00,098 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:13:00,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:13:00,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:13:00,100 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:13:00,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:13:00,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:13:00,103 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:13:00,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:13:00,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:13:00,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:13:00,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:13:00,106 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:13:00,107 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:13:00,107 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 23:13:00,108 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 23:13:00,108 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 23:13:00,109 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:13:00,109 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:13:00,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:13:00,110 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:13:00,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:13:00,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:13:00,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:13:00,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:13:00,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:13:00,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:13:00,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:13:00,115 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 23:13:00,116 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 23:13:00,116 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:13:00,117 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:13:00,117 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:13:00,118 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:13:00,119 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 23:13:00,119 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:13:00,120 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df25530cebe2f8dbf5c0f407e5ccf4cecba61e3d44431cb17b70a57441db534c [2023-11-06 23:13:00,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:13:00,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:13:00,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:13:00,638 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:13:00,639 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:13:00,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2023-11-06 23:13:04,193 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:13:04,742 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:13:04,752 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-1.i [2023-11-06 23:13:04,783 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/data/0adb7008b/f12ed71b77594dc0b933816fc46968ac/FLAG820cb75c6 [2023-11-06 23:13:04,800 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/data/0adb7008b/f12ed71b77594dc0b933816fc46968ac [2023-11-06 23:13:04,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:13:04,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:13:04,813 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:13:04,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:13:04,825 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:13:04,826 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:13:04" (1/1) ... [2023-11-06 23:13:04,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265e1f80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:04, skipping insertion in model container [2023-11-06 23:13:04,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:13:04" (1/1) ... [2023-11-06 23:13:04,985 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:13:05,988 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:13:06,006 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 23:13:06,027 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:13:06,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:13:06,198 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:13:06,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:13:06,477 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:13:06,488 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:13:06,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06 WrapperNode [2023-11-06 23:13:06,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:13:06,491 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:13:06,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:13:06,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:13:06,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06" (1/1) ... [2023-11-06 23:13:06,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06" (1/1) ... [2023-11-06 23:13:06,661 INFO L138 Inliner]: procedures = 180, calls = 390, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1416 [2023-11-06 23:13:06,662 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:13:06,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:13:06,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:13:06,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:13:06,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06" (1/1) ... [2023-11-06 23:13:06,675 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06" (1/1) ... [2023-11-06 23:13:06,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06" (1/1) ... [2023-11-06 23:13:06,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06" (1/1) ... [2023-11-06 23:13:06,780 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06" (1/1) ... [2023-11-06 23:13:06,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06" (1/1) ... [2023-11-06 23:13:06,802 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06" (1/1) ... [2023-11-06 23:13:06,811 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06" (1/1) ... [2023-11-06 23:13:06,843 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:13:06,844 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:13:06,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:13:06,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:13:06,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:13:06" (1/1) ... [2023-11-06 23:13:06,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:13:06,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:13:06,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:13:06,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f83678de-c755-483f-80b2-80fc4de4b424/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:13:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 23:13:06,936 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 23:13:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 23:13:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 23:13:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 23:13:06,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 23:13:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 23:13:06,938 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 23:13:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:13:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:13:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 23:13:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:13:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 23:13:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 23:13:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:13:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 23:13:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 23:13:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:13:06,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:13:07,260 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:13:07,262 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation