./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-crafted/bor4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-crafted/bor4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 530f2a23e46989c01d5f933930e2ae4d9f59000418a38b175b5a857a453825fc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:41:15,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:41:15,711 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 10:41:15,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:41:15,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:41:15,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:41:15,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:41:15,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:41:15,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:41:15,772 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:41:15,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:41:15,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:41:15,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:41:15,775 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:41:15,775 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:41:15,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:41:15,776 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:41:15,777 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:41:15,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:41:15,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:41:15,778 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:41:15,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:41:15,783 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:41:15,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:41:15,783 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 10:41:15,784 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:41:15,784 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:41:15,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:41:15,785 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:41:15,786 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:41:15,787 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:41:15,787 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:41:15,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:41:15,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:15,788 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:41:15,788 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:41:15,789 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:41:15,789 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:41:15,789 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:41:15,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:41:15,790 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:41:15,790 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:41:15,790 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:41:15,790 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:41:15,791 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_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 530f2a23e46989c01d5f933930e2ae4d9f59000418a38b175b5a857a453825fc [2023-11-26 10:41:16,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:41:16,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:41:16,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:41:16,109 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:41:16,110 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:41:16,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/array-crafted/bor4.i [2023-11-26 10:41:19,195 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:41:19,432 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:41:19,433 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/sv-benchmarks/c/array-crafted/bor4.i [2023-11-26 10:41:19,443 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/data/845b20958/a5de6f1e41bb4729b52bded23341a2bb/FLAG55dd006db [2023-11-26 10:41:19,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/data/845b20958/a5de6f1e41bb4729b52bded23341a2bb [2023-11-26 10:41:19,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:41:19,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:41:19,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:19,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:41:19,485 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:41:19,488 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,489 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620d1a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19, skipping insertion in model container [2023-11-26 10:41:19,490 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,522 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:41:19,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:19,761 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:41:19,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:19,806 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:41:19,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19 WrapperNode [2023-11-26 10:41:19,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:19,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:19,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:41:19,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:41:19,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,871 INFO L138 Inliner]: procedures = 16, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2023-11-26 10:41:19,872 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:19,872 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:41:19,873 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:41:19,873 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:41:19,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,886 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,902 INFO L175 MemorySlicer]: Split 20 memory accesses to 3 slices as follows [2, 11, 7]. 55 percent of accesses are in the largest equivalence class. The 9 initializations are split as follows [2, 0, 7]. The 5 writes are split as follows [0, 5, 0]. [2023-11-26 10:41:19,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,921 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:41:19,922 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:41:19,922 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:41:19,922 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:41:19,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (1/1) ... [2023-11-26 10:41:19,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:19,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:19,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:19,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:41:20,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:41:20,010 INFO L130 BoogieDeclarations]: Found specification of procedure bor [2023-11-26 10:41:20,010 INFO L138 BoogieDeclarations]: Found implementation of procedure bor [2023-11-26 10:41:20,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:41:20,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 10:41:20,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 10:41:20,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:41:20,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 10:41:20,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 10:41:20,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 10:41:20,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:41:20,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:41:20,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 10:41:20,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 10:41:20,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 10:41:20,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:41:20,099 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:41:20,102 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:41:20,414 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:41:20,473 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:41:20,473 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-26 10:41:20,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:20 BoogieIcfgContainer [2023-11-26 10:41:20,473 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:41:20,476 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:41:20,477 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:41:20,490 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:41:20,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:41:19" (1/3) ... [2023-11-26 10:41:20,491 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7ab0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:20, skipping insertion in model container [2023-11-26 10:41:20,491 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:19" (2/3) ... [2023-11-26 10:41:20,494 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d7ab0d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:20, skipping insertion in model container [2023-11-26 10:41:20,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:20" (3/3) ... [2023-11-26 10:41:20,496 INFO L112 eAbstractionObserver]: Analyzing ICFG bor4.i [2023-11-26 10:41:20,532 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:41:20,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-26 10:41:20,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:41:20,587 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=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@fe40516, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:41:20,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-26 10:41:20,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 34 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-26 10:41:20,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 10:41:20,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:20,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 10:41:20,601 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:20,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:20,607 INFO L85 PathProgramCache]: Analyzing trace with hash 136042, now seen corresponding path program 1 times [2023-11-26 10:41:20,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:20,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635138829] [2023-11-26 10:41:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:20,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:20,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:20,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:20,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635138829] [2023-11-26 10:41:20,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635138829] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:20,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:20,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:20,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369026796] [2023-11-26 10:41:20,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:20,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:20,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:21,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:21,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:21,009 INFO L87 Difference]: Start difference. First operand has 39 states, 26 states have (on average 1.6923076923076923) internal successors, (44), 34 states have internal predecessors, (44), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:21,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:21,143 INFO L93 Difference]: Finished difference Result 76 states and 101 transitions. [2023-11-26 10:41:21,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:41:21,147 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-26 10:41:21,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:21,154 INFO L225 Difference]: With dead ends: 76 [2023-11-26 10:41:21,155 INFO L226 Difference]: Without dead ends: 36 [2023-11-26 10:41:21,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:21,167 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 3 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:21,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 105 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:21,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-26 10:41:21,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-26 10:41:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 32 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:21,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2023-11-26 10:41:21,228 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 3 [2023-11-26 10:41:21,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:21,229 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2023-11-26 10:41:21,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:21,231 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2023-11-26 10:41:21,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 10:41:21,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:21,232 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-26 10:41:21,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:41:21,233 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:21,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:21,239 INFO L85 PathProgramCache]: Analyzing trace with hash -242060731, now seen corresponding path program 1 times [2023-11-26 10:41:21,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:21,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830583555] [2023-11-26 10:41:21,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:21,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:21,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:21,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:21,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830583555] [2023-11-26 10:41:21,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830583555] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:21,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686230115] [2023-11-26 10:41:21,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:21,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:21,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:21,418 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:21,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 10:41:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:21,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:41:21,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:21,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:21,599 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:21,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686230115] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:21,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:41:21,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-26 10:41:21,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461597304] [2023-11-26 10:41:21,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:21,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:41:21,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:21,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:41:21,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-26 10:41:21,610 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-26 10:41:21,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:21,693 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2023-11-26 10:41:21,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:41:21,694 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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 [2023-11-26 10:41:21,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:21,697 INFO L225 Difference]: With dead ends: 36 [2023-11-26 10:41:21,697 INFO L226 Difference]: Without dead ends: 35 [2023-11-26 10:41:21,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:41:21,699 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 11 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:21,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 86 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:21,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-26 10:41:21,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-26 10:41:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.5) internal successors, (36), 31 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:21,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2023-11-26 10:41:21,714 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 6 [2023-11-26 10:41:21,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:21,714 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2023-11-26 10:41:21,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 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) [2023-11-26 10:41:21,716 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2023-11-26 10:41:21,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 10:41:21,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:21,717 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-26 10:41:21,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:21,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:21,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:21,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1086052009, now seen corresponding path program 1 times [2023-11-26 10:41:21,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:21,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015865561] [2023-11-26 10:41:21,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:21,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:21,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 10:41:21,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:21,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015865561] [2023-11-26 10:41:21,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015865561] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:21,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:21,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:21,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316243448] [2023-11-26 10:41:21,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:21,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:21,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:21,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:21,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:21,977 INFO L87 Difference]: Start difference. First operand 35 states and 41 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) [2023-11-26 10:41:21,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:21,996 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2023-11-26 10:41:21,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:21,997 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 [2023-11-26 10:41:21,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:21,998 INFO L225 Difference]: With dead ends: 35 [2023-11-26 10:41:21,998 INFO L226 Difference]: Without dead ends: 34 [2023-11-26 10:41:21,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:22,000 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:22,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:22,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-26 10:41:22,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2023-11-26 10:41:22,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:22,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2023-11-26 10:41:22,007 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 7 [2023-11-26 10:41:22,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:22,007 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2023-11-26 10:41:22,008 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) [2023-11-26 10:41:22,008 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-11-26 10:41:22,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 10:41:22,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:22,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:22,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:41:22,009 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:22,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:22,010 INFO L85 PathProgramCache]: Analyzing trace with hash -564381951, now seen corresponding path program 1 times [2023-11-26 10:41:22,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:22,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851537590] [2023-11-26 10:41:22,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:22,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:22,127 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:22,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:22,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851537590] [2023-11-26 10:41:22,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851537590] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:22,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716416916] [2023-11-26 10:41:22,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:22,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:22,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:22,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:22,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 10:41:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:22,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 10:41:22,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:22,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:22,266 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:41:22,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:22,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716416916] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:41:22,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:41:22,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2023-11-26 10:41:22,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869837534] [2023-11-26 10:41:22,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:41:22,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-26 10:41:22,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:22,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-26 10:41:22,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-26 10:41:22,319 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:22,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:22,411 INFO L93 Difference]: Finished difference Result 65 states and 78 transitions. [2023-11-26 10:41:22,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:41:22,412 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-26 10:41:22,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:22,413 INFO L225 Difference]: With dead ends: 65 [2023-11-26 10:41:22,413 INFO L226 Difference]: Without dead ends: 38 [2023-11-26 10:41:22,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2023-11-26 10:41:22,417 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:22,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 145 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:22,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-26 10:41:22,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-26 10:41:22,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 34 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:22,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2023-11-26 10:41:22,441 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 12 [2023-11-26 10:41:22,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:22,441 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2023-11-26 10:41:22,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 9 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2023-11-26 10:41:22,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 10:41:22,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:22,443 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:22,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:22,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:22,650 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:22,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:22,651 INFO L85 PathProgramCache]: Analyzing trace with hash -516731679, now seen corresponding path program 2 times [2023-11-26 10:41:22,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:22,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527235971] [2023-11-26 10:41:22,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:22,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:22,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:22,756 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 10:41:22,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:22,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527235971] [2023-11-26 10:41:22,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527235971] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:22,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:22,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:22,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953208341] [2023-11-26 10:41:22,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:22,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:22,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:22,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:22,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:22,760 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:22,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:22,801 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2023-11-26 10:41:22,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:41:22,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-26 10:41:22,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:22,804 INFO L225 Difference]: With dead ends: 69 [2023-11-26 10:41:22,804 INFO L226 Difference]: Without dead ends: 44 [2023-11-26 10:41:22,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:22,806 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:22,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 84 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:22,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-11-26 10:41:22,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-11-26 10:41:22,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 40 states have internal predecessors, (47), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:22,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2023-11-26 10:41:22,821 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 18 [2023-11-26 10:41:22,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:22,821 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2023-11-26 10:41:22,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:22,822 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2023-11-26 10:41:22,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-26 10:41:22,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:22,823 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:22,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:41:22,823 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:22,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:22,824 INFO L85 PathProgramCache]: Analyzing trace with hash 437628010, now seen corresponding path program 1 times [2023-11-26 10:41:22,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:22,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142209949] [2023-11-26 10:41:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:22,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:22,953 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 10:41:22,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:22,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142209949] [2023-11-26 10:41:22,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142209949] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:22,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739747882] [2023-11-26 10:41:22,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:22,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:22,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:22,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:22,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 10:41:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:23,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 10:41:23,043 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:23,099 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 10:41:23,099 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:41:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 10:41:23,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739747882] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:41:23,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:41:23,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2023-11-26 10:41:23,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316487439] [2023-11-26 10:41:23,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:41:23,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-26 10:41:23,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:23,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-26 10:41:23,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-11-26 10:41:23,228 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 17 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:23,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:23,416 INFO L93 Difference]: Finished difference Result 89 states and 108 transitions. [2023-11-26 10:41:23,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-26 10:41:23,417 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 17 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-11-26 10:41:23,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:23,418 INFO L225 Difference]: With dead ends: 89 [2023-11-26 10:41:23,418 INFO L226 Difference]: Without dead ends: 56 [2023-11-26 10:41:23,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2023-11-26 10:41:23,420 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 32 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:23,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 177 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:23,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-26 10:41:23,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-26 10:41:23,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 52 states have internal predecessors, (59), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:23,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2023-11-26 10:41:23,429 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 23 [2023-11-26 10:41:23,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:23,430 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2023-11-26 10:41:23,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 17 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:23,430 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2023-11-26 10:41:23,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-26 10:41:23,432 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:23,432 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:23,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-26 10:41:23,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:23,638 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:23,638 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:23,639 INFO L85 PathProgramCache]: Analyzing trace with hash 639340714, now seen corresponding path program 2 times [2023-11-26 10:41:23,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:23,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883924829] [2023-11-26 10:41:23,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:23,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:24,007 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 10:41:24,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:24,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883924829] [2023-11-26 10:41:24,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883924829] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:24,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945564860] [2023-11-26 10:41:24,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 10:41:24,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:24,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:24,010 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:24,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 10:41:24,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 10:41:24,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:41:24,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-26 10:41:24,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 10:41:24,195 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:41:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 10:41:24,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945564860] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:41:24,567 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:41:24,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2023-11-26 10:41:24,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597541698] [2023-11-26 10:41:24,568 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:41:24,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-26 10:41:24,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:24,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-26 10:41:24,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-11-26 10:41:24,570 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand has 34 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 33 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:24,931 INFO L93 Difference]: Finished difference Result 113 states and 136 transitions. [2023-11-26 10:41:24,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-26 10:41:24,932 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 33 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-11-26 10:41:24,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:24,933 INFO L225 Difference]: With dead ends: 113 [2023-11-26 10:41:24,933 INFO L226 Difference]: Without dead ends: 80 [2023-11-26 10:41:24,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2023-11-26 10:41:24,936 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 106 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:24,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 207 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 10:41:24,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-11-26 10:41:24,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-11-26 10:41:24,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 70 states have (on average 1.1857142857142857) internal successors, (83), 76 states have internal predecessors, (83), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:24,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 88 transitions. [2023-11-26 10:41:24,945 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 88 transitions. Word has length 35 [2023-11-26 10:41:24,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:24,946 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 88 transitions. [2023-11-26 10:41:24,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 1.7058823529411764) internal successors, (58), 33 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:24,946 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 88 transitions. [2023-11-26 10:41:24,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-26 10:41:24,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:24,949 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:24,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:25,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:25,150 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:25,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:25,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1121597738, now seen corresponding path program 3 times [2023-11-26 10:41:25,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:25,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144445337] [2023-11-26 10:41:25,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:25,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:26,212 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 10:41:26,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:26,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144445337] [2023-11-26 10:41:26,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144445337] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:26,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026656429] [2023-11-26 10:41:26,213 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-26 10:41:26,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:26,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:26,217 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:26,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 10:41:26,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-26 10:41:26,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 10:41:26,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 10:41:26,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:26,439 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-11-26 10:41:26,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:26,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026656429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:26,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:41:26,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [32] total 37 [2023-11-26 10:41:26,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818759851] [2023-11-26 10:41:26,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:26,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:41:26,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:26,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:41:26,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=1034, Unknown=0, NotChecked=0, Total=1332 [2023-11-26 10:41:26,445 INFO L87 Difference]: Start difference. First operand 80 states and 88 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:26,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:26,526 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2023-11-26 10:41:26,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:41:26,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-11-26 10:41:26,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:26,528 INFO L225 Difference]: With dead ends: 80 [2023-11-26 10:41:26,528 INFO L226 Difference]: Without dead ends: 79 [2023-11-26 10:41:26,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=309, Invalid=1173, Unknown=0, NotChecked=0, Total=1482 [2023-11-26 10:41:26,531 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 15 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:26,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 136 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:26,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-26 10:41:26,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2023-11-26 10:41:26,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 70 states have (on average 1.1714285714285715) internal successors, (82), 75 states have internal predecessors, (82), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2023-11-26 10:41:26,552 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 59 [2023-11-26 10:41:26,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:26,556 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2023-11-26 10:41:26,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:26,556 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2023-11-26 10:41:26,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-26 10:41:26,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:26,563 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:26,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:26,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:26,768 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:26,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:26,769 INFO L85 PathProgramCache]: Analyzing trace with hash 409791566, now seen corresponding path program 1 times [2023-11-26 10:41:26,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:26,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915408123] [2023-11-26 10:41:26,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:26,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:26,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2023-11-26 10:41:26,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:26,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915408123] [2023-11-26 10:41:26,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915408123] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:26,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:26,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:26,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101123349] [2023-11-26 10:41:26,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:26,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:26,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:26,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:26,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:26,905 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:26,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:26,933 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2023-11-26 10:41:26,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:41:26,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2023-11-26 10:41:26,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:26,935 INFO L225 Difference]: With dead ends: 79 [2023-11-26 10:41:26,935 INFO L226 Difference]: Without dead ends: 76 [2023-11-26 10:41:26,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:26,936 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 5 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:26,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 75 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:26,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-26 10:41:26,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 71. [2023-11-26 10:41:26,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.125) internal successors, (72), 67 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:26,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 76 transitions. [2023-11-26 10:41:26,943 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 76 transitions. Word has length 60 [2023-11-26 10:41:26,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:26,944 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 76 transitions. [2023-11-26 10:41:26,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:26,944 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 76 transitions. [2023-11-26 10:41:26,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-26 10:41:26,945 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:26,946 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:26,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:41:26,946 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:26,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:26,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1535748108, now seen corresponding path program 1 times [2023-11-26 10:41:26,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:26,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312039835] [2023-11-26 10:41:26,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:26,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:26,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:27,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 10:41:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:27,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 10:41:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:27,127 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2023-11-26 10:41:27,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:27,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312039835] [2023-11-26 10:41:27,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312039835] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:27,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933527058] [2023-11-26 10:41:27,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:27,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:27,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:27,130 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:27,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 10:41:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:27,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:41:27,288 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:27,303 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-11-26 10:41:27,304 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:27,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933527058] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:27,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:41:27,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-26 10:41:27,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718737501] [2023-11-26 10:41:27,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:27,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:27,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:27,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:27,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:41:27,316 INFO L87 Difference]: Start difference. First operand 71 states and 76 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-26 10:41:27,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:27,342 INFO L93 Difference]: Finished difference Result 79 states and 85 transitions. [2023-11-26 10:41:27,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:27,343 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 72 [2023-11-26 10:41:27,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:27,345 INFO L225 Difference]: With dead ends: 79 [2023-11-26 10:41:27,345 INFO L226 Difference]: Without dead ends: 78 [2023-11-26 10:41:27,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:41:27,346 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 6 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:27,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 45 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:27,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-26 10:41:27,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2023-11-26 10:41:27,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 66 states have (on average 1.121212121212121) internal successors, (74), 69 states have internal predecessors, (74), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:27,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 78 transitions. [2023-11-26 10:41:27,365 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 78 transitions. Word has length 72 [2023-11-26 10:41:27,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:27,367 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 78 transitions. [2023-11-26 10:41:27,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-26 10:41:27,367 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 78 transitions. [2023-11-26 10:41:27,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-26 10:41:27,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:27,372 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:27,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:27,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-26 10:41:27,578 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:27,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:27,579 INFO L85 PathProgramCache]: Analyzing trace with hash -363550994, now seen corresponding path program 1 times [2023-11-26 10:41:27,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:27,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817816405] [2023-11-26 10:41:27,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:27,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:27,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:27,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 10:41:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:27,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 10:41:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:27,722 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2023-11-26 10:41:27,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:27,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817816405] [2023-11-26 10:41:27,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817816405] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:27,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337464648] [2023-11-26 10:41:27,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:27,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:27,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:27,724 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:27,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 10:41:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:27,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 10:41:27,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:27,910 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2023-11-26 10:41:27,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:41:27,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337464648] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:27,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 10:41:27,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-26 10:41:27,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823358619] [2023-11-26 10:41:27,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:27,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:27,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:27,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:27,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:41:27,914 INFO L87 Difference]: Start difference. First operand 73 states and 78 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-26 10:41:27,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:27,936 INFO L93 Difference]: Finished difference Result 79 states and 84 transitions. [2023-11-26 10:41:27,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:27,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 73 [2023-11-26 10:41:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:27,938 INFO L225 Difference]: With dead ends: 79 [2023-11-26 10:41:27,938 INFO L226 Difference]: Without dead ends: 78 [2023-11-26 10:41:27,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:41:27,939 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 4 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:27,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 46 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:27,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-26 10:41:27,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2023-11-26 10:41:27,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 67 states have (on average 1.1194029850746268) internal successors, (75), 70 states have internal predecessors, (75), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 79 transitions. [2023-11-26 10:41:27,947 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 79 transitions. Word has length 73 [2023-11-26 10:41:27,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:27,947 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 79 transitions. [2023-11-26 10:41:27,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-26 10:41:27,948 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 79 transitions. [2023-11-26 10:41:27,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-26 10:41:27,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:27,949 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:27,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:28,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-26 10:41:28,163 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:28,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:28,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1614822478, now seen corresponding path program 1 times [2023-11-26 10:41:28,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:28,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915999584] [2023-11-26 10:41:28,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:28,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:28,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-26 10:41:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:28,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-26 10:41:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2023-11-26 10:41:28,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:28,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915999584] [2023-11-26 10:41:28,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915999584] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:28,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867346250] [2023-11-26 10:41:28,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:28,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:28,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:28,340 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:28,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 10:41:28,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:28,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-26 10:41:28,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:29,124 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-26 10:41:29,125 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:41:30,389 INFO L134 CoverageAnalysis]: Checked inductivity of 343 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-26 10:41:30,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867346250] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:41:30,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:41:30,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 32, 33] total 67 [2023-11-26 10:41:30,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332759784] [2023-11-26 10:41:30,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:41:30,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2023-11-26 10:41:30,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:30,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2023-11-26 10:41:30,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2023-11-26 10:41:30,396 INFO L87 Difference]: Start difference. First operand 74 states and 79 transitions. Second operand has 67 states, 67 states have (on average 1.9402985074626866) internal successors, (130), 67 states have internal predecessors, (130), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:41:31,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:31,533 INFO L93 Difference]: Finished difference Result 160 states and 192 transitions. [2023-11-26 10:41:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-11-26 10:41:31,534 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 1.9402985074626866) internal successors, (130), 67 states have internal predecessors, (130), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2023-11-26 10:41:31,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:31,535 INFO L225 Difference]: With dead ends: 160 [2023-11-26 10:41:31,535 INFO L226 Difference]: Without dead ends: 133 [2023-11-26 10:41:31,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2023-11-26 10:41:31,542 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 228 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:31,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 237 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 10:41:31,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-26 10:41:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 128. [2023-11-26 10:41:31,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 121 states have (on average 1.0826446280991735) internal successors, (131), 124 states have internal predecessors, (131), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:31,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 135 transitions. [2023-11-26 10:41:31,551 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 135 transitions. Word has length 74 [2023-11-26 10:41:31,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:31,551 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 135 transitions. [2023-11-26 10:41:31,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 1.9402985074626866) internal successors, (130), 67 states have internal predecessors, (130), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-26 10:41:31,552 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 135 transitions. [2023-11-26 10:41:31,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-26 10:41:31,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:31,553 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:31,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:31,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:31,759 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:31,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:31,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1935018926, now seen corresponding path program 2 times [2023-11-26 10:41:31,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:31,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793287722] [2023-11-26 10:41:31,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:31,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:32,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-26 10:41:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:32,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-26 10:41:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:32,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1468 trivial. 0 not checked. [2023-11-26 10:41:32,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:32,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793287722] [2023-11-26 10:41:32,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793287722] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:32,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:32,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:32,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737202842] [2023-11-26 10:41:32,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:32,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:32,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:32,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:32,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:32,017 INFO L87 Difference]: Start difference. First operand 128 states and 135 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-26 10:41:32,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:32,051 INFO L93 Difference]: Finished difference Result 132 states and 139 transitions. [2023-11-26 10:41:32,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:41:32,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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 132 [2023-11-26 10:41:32,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:32,053 INFO L225 Difference]: With dead ends: 132 [2023-11-26 10:41:32,053 INFO L226 Difference]: Without dead ends: 130 [2023-11-26 10:41:32,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:32,054 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:32,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 65 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:32,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-11-26 10:41:32,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2023-11-26 10:41:32,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 123 states have (on average 1.08130081300813) internal successors, (133), 126 states have internal predecessors, (133), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 137 transitions. [2023-11-26 10:41:32,062 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 137 transitions. Word has length 132 [2023-11-26 10:41:32,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:32,062 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 137 transitions. [2023-11-26 10:41:32,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-26 10:41:32,063 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 137 transitions. [2023-11-26 10:41:32,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-26 10:41:32,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:32,064 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:32,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 10:41:32,064 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:32,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:32,065 INFO L85 PathProgramCache]: Analyzing trace with hash 902325400, now seen corresponding path program 1 times [2023-11-26 10:41:32,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:32,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224574417] [2023-11-26 10:41:32,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:32,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:32,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-26 10:41:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:32,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-26 10:41:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:32,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1468 trivial. 0 not checked. [2023-11-26 10:41:32,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:32,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224574417] [2023-11-26 10:41:32,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224574417] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 10:41:32,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931451170] [2023-11-26 10:41:32,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:32,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:32,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:32,288 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 10:41:32,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 10:41:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:32,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-26 10:41:32,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:41:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-26 10:41:34,454 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:41:38,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 1426 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-26 10:41:38,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931451170] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:41:38,647 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 10:41:38,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 64, 65] total 131 [2023-11-26 10:41:38,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45337841] [2023-11-26 10:41:38,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 10:41:38,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2023-11-26 10:41:38,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:38,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2023-11-26 10:41:38,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4166, Invalid=12864, Unknown=0, NotChecked=0, Total=17030 [2023-11-26 10:41:38,661 INFO L87 Difference]: Start difference. First operand 130 states and 137 transitions. Second operand has 131 states, 131 states have (on average 1.7557251908396947) internal successors, (230), 131 states have internal predecessors, (230), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 10:41:42,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:42,174 INFO L93 Difference]: Finished difference Result 268 states and 315 transitions. [2023-11-26 10:41:42,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-11-26 10:41:42,175 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 131 states have (on average 1.7557251908396947) internal successors, (230), 131 states have internal predecessors, (230), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 135 [2023-11-26 10:41:42,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:42,177 INFO L225 Difference]: With dead ends: 268 [2023-11-26 10:41:42,177 INFO L226 Difference]: Without dead ends: 233 [2023-11-26 10:41:42,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 192 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7657 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=10185, Invalid=27257, Unknown=0, NotChecked=0, Total=37442 [2023-11-26 10:41:42,188 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 478 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:42,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 202 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-26 10:41:42,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-26 10:41:42,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 228. [2023-11-26 10:41:42,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 221 states have (on average 1.0452488687782806) internal successors, (231), 224 states have internal predecessors, (231), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:42,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 235 transitions. [2023-11-26 10:41:42,199 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 235 transitions. Word has length 135 [2023-11-26 10:41:42,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:42,200 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 235 transitions. [2023-11-26 10:41:42,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 131 states have (on average 1.7557251908396947) internal successors, (230), 131 states have internal predecessors, (230), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-26 10:41:42,200 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 235 transitions. [2023-11-26 10:41:42,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-11-26 10:41:42,203 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:42,203 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:42,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-26 10:41:42,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 10:41:42,430 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:42,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:42,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1677734710, now seen corresponding path program 1 times [2023-11-26 10:41:42,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:42,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246906974] [2023-11-26 10:41:42,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:42,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:42,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:42,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-26 10:41:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:42,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-26 10:41:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:42,725 INFO L134 CoverageAnalysis]: Checked inductivity of 5967 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5965 trivial. 0 not checked. [2023-11-26 10:41:42,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:42,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246906974] [2023-11-26 10:41:42,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246906974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:42,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:42,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:42,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905783100] [2023-11-26 10:41:42,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:42,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:42,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:42,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:42,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:42,740 INFO L87 Difference]: Start difference. First operand 228 states and 235 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (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) [2023-11-26 10:41:42,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:42,762 INFO L93 Difference]: Finished difference Result 228 states and 235 transitions. [2023-11-26 10:41:42,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:42,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (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 232 [2023-11-26 10:41:42,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:42,765 INFO L225 Difference]: With dead ends: 228 [2023-11-26 10:41:42,765 INFO L226 Difference]: Without dead ends: 227 [2023-11-26 10:41:42,766 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 [2023-11-26 10:41:42,766 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 5 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:42,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 41 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:42,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-26 10:41:42,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2023-11-26 10:41:42,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 221 states have (on average 1.0407239819004526) internal successors, (230), 223 states have internal predecessors, (230), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:42,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 234 transitions. [2023-11-26 10:41:42,795 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 234 transitions. Word has length 232 [2023-11-26 10:41:42,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:42,796 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 234 transitions. [2023-11-26 10:41:42,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (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) [2023-11-26 10:41:42,796 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 234 transitions. [2023-11-26 10:41:42,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-11-26 10:41:42,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:42,800 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:42,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 10:41:42,800 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:42,801 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:42,801 INFO L85 PathProgramCache]: Analyzing trace with hash -470167054, now seen corresponding path program 1 times [2023-11-26 10:41:42,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:42,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772358688] [2023-11-26 10:41:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:42,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-26 10:41:43,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-26 10:41:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,103 INFO L134 CoverageAnalysis]: Checked inductivity of 5968 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5966 trivial. 0 not checked. [2023-11-26 10:41:43,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:43,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772358688] [2023-11-26 10:41:43,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772358688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:43,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:43,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:43,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859180153] [2023-11-26 10:41:43,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:43,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:43,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:43,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:43,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:43,141 INFO L87 Difference]: Start difference. First operand 227 states and 234 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (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) [2023-11-26 10:41:43,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:43,175 INFO L93 Difference]: Finished difference Result 227 states and 234 transitions. [2023-11-26 10:41:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:41:43,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (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 233 [2023-11-26 10:41:43,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:43,178 INFO L225 Difference]: With dead ends: 227 [2023-11-26 10:41:43,178 INFO L226 Difference]: Without dead ends: 225 [2023-11-26 10:41:43,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:43,179 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:43,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 56 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:43,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-11-26 10:41:43,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 223. [2023-11-26 10:41:43,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 219 states have (on average 1.0319634703196348) internal successors, (226), 219 states have internal predecessors, (226), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 10:41:43,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 230 transitions. [2023-11-26 10:41:43,193 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 230 transitions. Word has length 233 [2023-11-26 10:41:43,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:43,194 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 230 transitions. [2023-11-26 10:41:43,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (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) [2023-11-26 10:41:43,194 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 230 transitions. [2023-11-26 10:41:43,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2023-11-26 10:41:43,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:41:43,198 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:43,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 10:41:43,199 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-26 10:41:43,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:43,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1690276682, now seen corresponding path program 1 times [2023-11-26 10:41:43,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:43,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170544196] [2023-11-26 10:41:43,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:43,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-11-26 10:41:43,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-11-26 10:41:43,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:43,506 INFO L134 CoverageAnalysis]: Checked inductivity of 5969 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5965 trivial. 0 not checked. [2023-11-26 10:41:43,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:43,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170544196] [2023-11-26 10:41:43,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170544196] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:43,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:43,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:43,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994178429] [2023-11-26 10:41:43,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:43,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 10:41:43,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:43,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 10:41:43,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 10:41:43,509 INFO L87 Difference]: Start difference. First operand 223 states and 230 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-26 10:41:43,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:41:43,534 INFO L93 Difference]: Finished difference Result 223 states and 230 transitions. [2023-11-26 10:41:43,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 10:41:43,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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 234 [2023-11-26 10:41:43,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:41:43,536 INFO L225 Difference]: With dead ends: 223 [2023-11-26 10:41:43,536 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 10:41:43,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:43,537 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 2 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:41:43,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 56 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:41:43,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 10:41:43,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 10:41:43,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:43,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 10:41:43,538 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 234 [2023-11-26 10:41:43,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:41:43,539 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 10:41:43,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-26 10:41:43,539 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 10:41:43,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 10:41:43,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-26 10:41:43,542 INFO L805 garLoopResultBuilder]: Registering result SAFE for location borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-26 10:41:43,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-26 10:41:43,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-26 10:41:43,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-26 10:41:43,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-26 10:41:43,543 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-26 10:41:43,544 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-26 10:41:43,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 10:41:43,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 10:41:43,642 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2023-11-26 10:41:43,642 INFO L899 garLoopResultBuilder]: For program point borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-26 10:41:43,642 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2023-11-26 10:41:43,643 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 25) the Hoare annotation is: (or (< 1 bor_~i~0) (= 1 bor_~i~0)) [2023-11-26 10:41:43,643 INFO L899 garLoopResultBuilder]: For program point L23-6(lines 23 25) no Hoare annotation was computed. [2023-11-26 10:41:43,643 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 18 27) the Hoare annotation is: true [2023-11-26 10:41:43,643 INFO L899 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2023-11-26 10:41:43,643 INFO L899 garLoopResultBuilder]: For program point L24-2(line 24) no Hoare annotation was computed. [2023-11-26 10:41:43,644 INFO L899 garLoopResultBuilder]: For program point borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2023-11-26 10:41:43,644 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2023-11-26 10:41:43,644 INFO L899 garLoopResultBuilder]: For program point borEXIT(lines 18 27) no Hoare annotation was computed. [2023-11-26 10:41:43,644 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2023-11-26 10:41:43,644 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 54) no Hoare annotation was computed. [2023-11-26 10:41:43,644 INFO L899 garLoopResultBuilder]: For program point L52-2(lines 52 54) no Hoare annotation was computed. [2023-11-26 10:41:43,644 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2023-11-26 10:41:43,645 INFO L899 garLoopResultBuilder]: For program point L15-2(line 15) no Hoare annotation was computed. [2023-11-26 10:41:43,645 INFO L902 garLoopResultBuilder]: At program point L44(line 44) the Hoare annotation is: true [2023-11-26 10:41:43,645 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2023-11-26 10:41:43,645 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-26 10:41:43,645 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-26 10:41:43,645 INFO L902 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: true [2023-11-26 10:41:43,646 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2023-11-26 10:41:43,646 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2023-11-26 10:41:43,646 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2023-11-26 10:41:43,646 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2023-11-26 10:41:43,646 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 10:41:43,646 INFO L895 garLoopResultBuilder]: At program point L37-5(lines 37 39) the Hoare annotation is: (or (= |ULTIMATE.start_main_~i~1#1| 0) (< 0 |ULTIMATE.start_main_~i~1#1|)) [2023-11-26 10:41:43,646 INFO L899 garLoopResultBuilder]: For program point L37-6(lines 37 39) no Hoare annotation was computed. [2023-11-26 10:41:43,647 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2023-11-26 10:41:43,647 INFO L902 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: true [2023-11-26 10:41:43,647 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-11-26 10:41:43,647 INFO L899 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2023-11-26 10:41:43,647 INFO L899 garLoopResultBuilder]: For program point L46-4(line 46) no Hoare annotation was computed. [2023-11-26 10:41:43,647 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 10:41:43,648 INFO L895 garLoopResultBuilder]: At program point L46-5(lines 46 48) the Hoare annotation is: (< 0 (+ 2147483650 |ULTIMATE.start_main_~i~2#1|)) [2023-11-26 10:41:43,648 INFO L899 garLoopResultBuilder]: For program point L46-6(lines 46 48) no Hoare annotation was computed. [2023-11-26 10:41:43,648 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2023-11-26 10:41:43,648 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2023-11-26 10:41:43,648 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2023-11-26 10:41:43,651 INFO L445 BasicCegarLoop]: Path program histogram: [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:43,653 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:41:43,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:41:43 BoogieIcfgContainer [2023-11-26 10:41:43,663 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:41:43,664 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:41:43,664 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:41:43,664 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:41:43,665 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:20" (3/4) ... [2023-11-26 10:41:43,666 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:41:43,669 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bor [2023-11-26 10:41:43,675 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2023-11-26 10:41:43,675 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-26 10:41:43,675 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 10:41:43,676 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 10:41:43,676 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 10:41:43,765 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:41:43,766 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:41:43,766 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:41:43,767 INFO L158 Benchmark]: Toolchain (without parser) took 24295.03ms. Allocated memory was 148.9MB in the beginning and 314.6MB in the end (delta: 165.7MB). Free memory was 103.2MB in the beginning and 151.4MB in the end (delta: -48.2MB). Peak memory consumption was 119.0MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,767 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 102.8MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:43,768 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.25ms. Allocated memory is still 148.9MB. Free memory was 103.2MB in the beginning and 92.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.48ms. Allocated memory is still 148.9MB. Free memory was 92.2MB in the beginning and 90.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,768 INFO L158 Benchmark]: Boogie Preprocessor took 48.54ms. Allocated memory is still 148.9MB. Free memory was 90.6MB in the beginning and 88.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,769 INFO L158 Benchmark]: RCFGBuilder took 551.74ms. Allocated memory is still 148.9MB. Free memory was 88.5MB in the beginning and 73.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,769 INFO L158 Benchmark]: TraceAbstraction took 23187.11ms. Allocated memory was 148.9MB in the beginning and 314.6MB in the end (delta: 165.7MB). Free memory was 72.9MB in the beginning and 156.7MB in the end (delta: -83.8MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,770 INFO L158 Benchmark]: Witness Printer took 102.34ms. Allocated memory is still 314.6MB. Free memory was 156.7MB in the beginning and 151.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,772 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 102.8MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.25ms. Allocated memory is still 148.9MB. Free memory was 103.2MB in the beginning and 92.2MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.48ms. Allocated memory is still 148.9MB. Free memory was 92.2MB in the beginning and 90.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.54ms. Allocated memory is still 148.9MB. Free memory was 90.6MB in the beginning and 88.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.74ms. Allocated memory is still 148.9MB. Free memory was 88.5MB in the beginning and 73.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 23187.11ms. Allocated memory was 148.9MB in the beginning and 314.6MB in the end (delta: 165.7MB). Free memory was 72.9MB in the beginning and 156.7MB in the end (delta: -83.8MB). Peak memory consumption was 83.3MB. Max. memory is 16.1GB. * Witness Printer took 102.34ms. Allocated memory is still 314.6MB. Free memory was 156.7MB in the beginning and 151.4MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 23.1s, OverallIterations: 17, TraceHistogramMax: 63, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 6.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 920 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 920 mSDsluCounter, 1823 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1375 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1188 IncrementalHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 448 mSDtfsCounter, 1188 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1017 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 439 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10435 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=228occurred in iteration=14, InterpolantAutomatonStates: 297, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 17 MinimizatonAttempts, 28 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 47 PreInvPairs, 120 NumberOfFragments, 23 HoareAnnotationTreeSize, 47 FomulaSimplifications, 588 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 1897 NumberOfCodeBlocks, 1855 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2145 ConstructedInterpolants, 0 QuantifiedInterpolants, 3163 SizeOfPredicates, 61 NumberOfNonLiveVariables, 2132 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 31 InterpolantComputations, 12 PerfectInterpolantSequences, 23350/27478 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((i == 0) || (0 < i)) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (0 < (2147483650 + i)) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((1 < i) || (1 == i)) RESULT: Ultimate proved your program to be correct! [2023-11-26 10:41:43,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f379039f-d88e-4ff4-b4cf-d9d15d4654c3/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE