./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/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_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/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 64bit --witnessprinter.graph.data.programhash f54c6e4ad5bb31d5fc72aa81fde78671b3e18716b8886472dd836cd1c3300322 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:56:18,612 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:56:18,715 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 11:56:18,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:56:18,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:56:18,752 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:56:18,752 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:56:18,753 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:56:18,754 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:56:18,754 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:56:18,755 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:56:18,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:56:18,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:56:18,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:56:18,758 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:56:18,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:56:18,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:56:18,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:56:18,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:56:18,761 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:56:18,761 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:56:18,762 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:56:18,762 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 11:56:18,762 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:56:18,763 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:56:18,763 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:56:18,764 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:56:18,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:56:18,765 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:56:18,765 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:56:18,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:56:18,766 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:56:18,766 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:56:18,767 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:56:18,767 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:56:18,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:56:18,768 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:56:18,768 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:56:18,769 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:56:18,769 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:56:18,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:56:18,770 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_7be93aa4-2749-4732-b3d5-428d84dcfb50/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f54c6e4ad5bb31d5fc72aa81fde78671b3e18716b8886472dd836cd1c3300322 [2023-11-26 11:56:19,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:56:19,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:56:19,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:56:19,055 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:56:19,056 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:56:19,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-1.i [2023-11-26 11:56:22,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:56:22,805 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:56:22,806 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-1.i [2023-11-26 11:56:22,846 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/data/f3f078279/1d775534acd04a978b892d168ba4546d/FLAG2b12a6bc6 [2023-11-26 11:56:22,870 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/data/f3f078279/1d775534acd04a978b892d168ba4546d [2023-11-26 11:56:22,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:56:22,879 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:56:22,881 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:56:22,881 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:56:22,887 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:56:22,890 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:56:22" (1/1) ... [2023-11-26 11:56:22,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21724b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:22, skipping insertion in model container [2023-11-26 11:56:22,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:56:22" (1/1) ... [2023-11-26 11:56:23,000 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:56:24,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:56:24,397 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:56:24,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:56:24,766 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:56:24,766 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:56:24,774 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:56:24,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24 WrapperNode [2023-11-26 11:56:24,775 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:56:24,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:56:24,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:56:24,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:56:24,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:24,862 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:24,922 INFO L138 Inliner]: procedures = 613, calls = 174, calls flagged for inlining = 19, calls inlined = 17, statements flattened = 546 [2023-11-26 11:56:24,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:56:24,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:56:24,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:56:24,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:56:24,936 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:24,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:24,945 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:24,963 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-26 11:56:24,963 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:24,963 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:25,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:25,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:25,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:25,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:25,051 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:56:25,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:56:25,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:56:25,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:56:25,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (1/1) ... [2023-11-26 11:56:25,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:56:25,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:25,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:56:25,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:56:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:56:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-26 11:56:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-26 11:56:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:56:25,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:56:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-26 11:56:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:56:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 11:56:25,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:56:25,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:56:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-26 11:56:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-26 11:56:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-26 11:56:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-26 11:56:25,151 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:56:25,151 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:56:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:56:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 11:56:25,152 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2023-11-26 11:56:25,152 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2023-11-26 11:56:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-26 11:56:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:56:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-26 11:56:25,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:56:25,636 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:56:25,638 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:56:26,390 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:56:26,448 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:56:26,448 INFO L309 CfgBuilder]: Removed 9 assume(true) statements. [2023-11-26 11:56:26,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:56:26 BoogieIcfgContainer [2023-11-26 11:56:26,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:56:26,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:56:26,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:56:26,456 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:56:26,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:56:22" (1/3) ... [2023-11-26 11:56:26,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396c94b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:56:26, skipping insertion in model container [2023-11-26 11:56:26,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:56:24" (2/3) ... [2023-11-26 11:56:26,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@396c94b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:56:26, skipping insertion in model container [2023-11-26 11:56:26,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:56:26" (3/3) ... [2023-11-26 11:56:26,459 INFO L112 eAbstractionObserver]: Analyzing ICFG whoami-incomplete-1.i [2023-11-26 11:56:26,480 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:56:26,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2023-11-26 11:56:26,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:56:26,545 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;@369f0880, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:56:26,546 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-26 11:56:26,551 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 109 states have (on average 1.761467889908257) internal successors, (192), 149 states have internal predecessors, (192), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:26,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 11:56:26,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:26,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 11:56:26,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:26,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:26,567 INFO L85 PathProgramCache]: Analyzing trace with hash 444111, now seen corresponding path program 1 times [2023-11-26 11:56:26,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:26,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689179183] [2023-11-26 11:56:26,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:26,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:27,101 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 11:56:27,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:27,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689179183] [2023-11-26 11:56:27,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689179183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:27,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:27,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:56:27,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340647858] [2023-11-26 11:56:27,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:27,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:27,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:27,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:27,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:27,146 INFO L87 Difference]: Start difference. First operand has 162 states, 109 states have (on average 1.761467889908257) internal successors, (192), 149 states have internal predecessors, (192), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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 11:56:27,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:27,310 INFO L93 Difference]: Finished difference Result 323 states and 426 transitions. [2023-11-26 11:56:27,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:27,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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 11:56:27,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:27,326 INFO L225 Difference]: With dead ends: 323 [2023-11-26 11:56:27,327 INFO L226 Difference]: Without dead ends: 155 [2023-11-26 11:56:27,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 11:56:27,343 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 1 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:27,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 362 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:27,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-26 11:56:27,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-11-26 11:56:27,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 103 states have (on average 1.6116504854368932) internal successors, (166), 142 states have internal predecessors, (166), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:27,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 184 transitions. [2023-11-26 11:56:27,422 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 184 transitions. Word has length 3 [2023-11-26 11:56:27,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:27,422 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 184 transitions. [2023-11-26 11:56:27,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 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 11:56:27,426 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 184 transitions. [2023-11-26 11:56:27,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 11:56:27,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:27,428 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-26 11:56:27,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:56:27,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:27,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash 345677273, now seen corresponding path program 1 times [2023-11-26 11:56:27,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:27,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813737314] [2023-11-26 11:56:27,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:27,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:27,707 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 11:56:27,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:27,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813737314] [2023-11-26 11:56:27,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813737314] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:27,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854849022] [2023-11-26 11:56:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:27,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:27,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:27,717 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:27,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 11:56:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:27,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:56:27,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:27,978 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 11:56:27,978 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:56:27,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854849022] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:27,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:56:27,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-26 11:56:27,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808209814] [2023-11-26 11:56:27,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:27,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:56:27,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:27,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:56:27,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:56:27,981 INFO L87 Difference]: Start difference. First operand 155 states and 184 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 11:56:28,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:28,064 INFO L93 Difference]: Finished difference Result 155 states and 184 transitions. [2023-11-26 11:56:28,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:56:28,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 11:56:28,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:28,067 INFO L225 Difference]: With dead ends: 155 [2023-11-26 11:56:28,067 INFO L226 Difference]: Without dead ends: 154 [2023-11-26 11:56:28,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 11:56:28,069 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 5 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:28,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 327 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:28,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-26 11:56:28,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2023-11-26 11:56:28,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 103 states have (on average 1.6019417475728155) internal successors, (165), 141 states have internal predecessors, (165), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:28,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2023-11-26 11:56:28,083 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 6 [2023-11-26 11:56:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:28,084 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2023-11-26 11:56:28,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 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 11:56:28,084 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2023-11-26 11:56:28,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 11:56:28,085 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:28,085 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-26 11:56:28,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:28,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-26 11:56:28,302 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:28,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:28,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2126060940, now seen corresponding path program 1 times [2023-11-26 11:56:28,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:28,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955810329] [2023-11-26 11:56:28,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:28,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:28,439 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 11:56:28,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:28,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955810329] [2023-11-26 11:56:28,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955810329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:28,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:28,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:28,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839998897] [2023-11-26 11:56:28,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:28,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:28,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:28,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:28,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:28,442 INFO L87 Difference]: Start difference. First operand 154 states and 183 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 11:56:28,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:28,510 INFO L93 Difference]: Finished difference Result 154 states and 183 transitions. [2023-11-26 11:56:28,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:28,511 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 11:56:28,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:28,517 INFO L225 Difference]: With dead ends: 154 [2023-11-26 11:56:28,517 INFO L226 Difference]: Without dead ends: 153 [2023-11-26 11:56:28,517 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 11:56:28,521 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:28,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 328 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:28,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-11-26 11:56:28,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2023-11-26 11:56:28,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 101 states have (on average 1.603960396039604) internal successors, (162), 138 states have internal predecessors, (162), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:28,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 180 transitions. [2023-11-26 11:56:28,548 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 180 transitions. Word has length 7 [2023-11-26 11:56:28,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:28,548 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 180 transitions. [2023-11-26 11:56:28,548 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 11:56:28,549 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 180 transitions. [2023-11-26 11:56:28,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 11:56:28,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:28,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:28,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:56:28,550 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:28,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:28,551 INFO L85 PathProgramCache]: Analyzing trace with hash 322844206, now seen corresponding path program 1 times [2023-11-26 11:56:28,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:28,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102278992] [2023-11-26 11:56:28,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:28,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:28,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:28,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:56:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:28,729 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 11:56:28,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:28,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102278992] [2023-11-26 11:56:28,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102278992] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:28,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089961633] [2023-11-26 11:56:28,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:28,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:28,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:28,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:28,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 11:56:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:28,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 11:56:28,953 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:28,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 11:56:28,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:56:28,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089961633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:28,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:56:28,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-26 11:56:28,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635581136] [2023-11-26 11:56:28,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:28,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:28,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:28,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:28,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:56:28,971 INFO L87 Difference]: Start difference. First operand 151 states and 180 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:29,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:29,041 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2023-11-26 11:56:29,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:29,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-26 11:56:29,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:29,044 INFO L225 Difference]: With dead ends: 151 [2023-11-26 11:56:29,044 INFO L226 Difference]: Without dead ends: 149 [2023-11-26 11:56:29,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:56:29,046 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 144 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:29,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 177 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:29,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-11-26 11:56:29,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-11-26 11:56:29,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 101 states have (on average 1.5841584158415842) internal successors, (160), 136 states have internal predecessors, (160), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:29,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 178 transitions. [2023-11-26 11:56:29,059 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 178 transitions. Word has length 12 [2023-11-26 11:56:29,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:29,061 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 178 transitions. [2023-11-26 11:56:29,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:29,061 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 178 transitions. [2023-11-26 11:56:29,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 11:56:29,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:29,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:29,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:29,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:29,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:29,270 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:29,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1418235872, now seen corresponding path program 1 times [2023-11-26 11:56:29,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:29,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349179155] [2023-11-26 11:56:29,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:29,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:29,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 11:56:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:29,466 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 11:56:29,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:29,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349179155] [2023-11-26 11:56:29,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349179155] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:29,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532932454] [2023-11-26 11:56:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:29,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:29,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:29,470 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:29,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 11:56:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:29,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:56:29,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:29,697 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 11:56:29,697 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:56:29,726 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 11:56:29,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532932454] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:56:29,726 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:56:29,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-26 11:56:29,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064745818] [2023-11-26 11:56:29,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:56:29,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:56:29,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:29,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:56:29,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:56:29,729 INFO L87 Difference]: Start difference. First operand 149 states and 178 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:56:29,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:29,814 INFO L93 Difference]: Finished difference Result 302 states and 362 transitions. [2023-11-26 11:56:29,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:29,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2023-11-26 11:56:29,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:29,816 INFO L225 Difference]: With dead ends: 302 [2023-11-26 11:56:29,816 INFO L226 Difference]: Without dead ends: 158 [2023-11-26 11:56:29,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:56:29,821 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 4 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:29,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 485 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:29,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-26 11:56:29,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-11-26 11:56:29,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 110 states have (on average 1.5363636363636364) internal successors, (169), 145 states have internal predecessors, (169), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:29,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 187 transitions. [2023-11-26 11:56:29,841 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 187 transitions. Word has length 13 [2023-11-26 11:56:29,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:29,841 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 187 transitions. [2023-11-26 11:56:29,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:56:29,842 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 187 transitions. [2023-11-26 11:56:29,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 11:56:29,843 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:29,843 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:29,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:30,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:30,051 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:30,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:30,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1738633558, now seen corresponding path program 2 times [2023-11-26 11:56:30,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:30,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575008519] [2023-11-26 11:56:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:30,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:30,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:56:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:56:30,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:30,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575008519] [2023-11-26 11:56:30,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575008519] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:30,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524963486] [2023-11-26 11:56:30,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 11:56:30,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:30,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:30,362 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:30,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 11:56:30,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 11:56:30,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 11:56:30,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:56:30,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 11:56:30,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:56:30,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524963486] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:30,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:56:30,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-26 11:56:30,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513949415] [2023-11-26 11:56:30,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:30,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:56:30,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:30,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:56:30,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-26 11:56:30,650 INFO L87 Difference]: Start difference. First operand 158 states and 187 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:30,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:30,804 INFO L93 Difference]: Finished difference Result 158 states and 187 transitions. [2023-11-26 11:56:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:56:30,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-26 11:56:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:30,806 INFO L225 Difference]: With dead ends: 158 [2023-11-26 11:56:30,806 INFO L226 Difference]: Without dead ends: 156 [2023-11-26 11:56:30,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-26 11:56:30,808 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 143 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:30,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 466 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:30,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-26 11:56:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2023-11-26 11:56:30,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 110 states have (on average 1.518181818181818) internal successors, (167), 143 states have internal predecessors, (167), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 185 transitions. [2023-11-26 11:56:30,822 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 185 transitions. Word has length 22 [2023-11-26 11:56:30,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:30,822 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 185 transitions. [2023-11-26 11:56:30,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 185 transitions. [2023-11-26 11:56:30,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-26 11:56:30,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:30,824 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:30,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:31,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:31,031 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:31,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:31,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1764755569, now seen corresponding path program 1 times [2023-11-26 11:56:31,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:31,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236469208] [2023-11-26 11:56:31,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:31,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:31,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:56:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:31,197 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 11:56:31,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:31,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236469208] [2023-11-26 11:56:31,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236469208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:31,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:31,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:31,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186738300] [2023-11-26 11:56:31,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:31,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:31,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:31,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:31,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:31,200 INFO L87 Difference]: Start difference. First operand 156 states and 185 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:31,276 INFO L93 Difference]: Finished difference Result 295 states and 354 transitions. [2023-11-26 11:56:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:31,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-26 11:56:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:31,278 INFO L225 Difference]: With dead ends: 295 [2023-11-26 11:56:31,278 INFO L226 Difference]: Without dead ends: 159 [2023-11-26 11:56:31,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:31,279 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 1 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:31,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 317 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:31,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-26 11:56:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2023-11-26 11:56:31,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 113 states have (on average 1.5044247787610618) internal successors, (170), 146 states have internal predecessors, (170), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:31,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 188 transitions. [2023-11-26 11:56:31,306 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 188 transitions. Word has length 27 [2023-11-26 11:56:31,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:31,307 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 188 transitions. [2023-11-26 11:56:31,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:31,309 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 188 transitions. [2023-11-26 11:56:31,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 11:56:31,310 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:31,311 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:31,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:56:31,312 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:31,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:31,312 INFO L85 PathProgramCache]: Analyzing trace with hash -861412135, now seen corresponding path program 1 times [2023-11-26 11:56:31,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:31,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595490342] [2023-11-26 11:56:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:31,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:31,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 11:56:31,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:31,594 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 11:56:31,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:31,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595490342] [2023-11-26 11:56:31,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595490342] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:31,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378626433] [2023-11-26 11:56:31,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:31,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:31,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:31,598 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:31,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 11:56:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:31,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:56:31,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:31,964 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:56:31,965 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:56:32,073 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 11:56:32,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378626433] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:56:32,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:56:32,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-11-26 11:56:32,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915187243] [2023-11-26 11:56:32,074 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:56:32,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:56:32,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:32,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:56:32,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:56:32,076 INFO L87 Difference]: Start difference. First operand 159 states and 188 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:56:32,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:32,256 INFO L93 Difference]: Finished difference Result 321 states and 385 transitions. [2023-11-26 11:56:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:56:32,257 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-11-26 11:56:32,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:32,258 INFO L225 Difference]: With dead ends: 321 [2023-11-26 11:56:32,258 INFO L226 Difference]: Without dead ends: 176 [2023-11-26 11:56:32,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:56:32,260 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 7 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:32,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 614 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:56:32,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-11-26 11:56:32,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2023-11-26 11:56:32,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 131 states have (on average 1.4274809160305344) internal successors, (187), 163 states have internal predecessors, (187), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:32,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 205 transitions. [2023-11-26 11:56:32,271 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 205 transitions. Word has length 30 [2023-11-26 11:56:32,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:32,271 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 205 transitions. [2023-11-26 11:56:32,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 11:56:32,272 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 205 transitions. [2023-11-26 11:56:32,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 11:56:32,273 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:32,273 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:32,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:32,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:32,481 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:32,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:32,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1604543277, now seen corresponding path program 1 times [2023-11-26 11:56:32,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:32,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211766030] [2023-11-26 11:56:32,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:32,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:32,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:32,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:32,718 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 11:56:32,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:32,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211766030] [2023-11-26 11:56:32,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211766030] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:32,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:32,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:32,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870775478] [2023-11-26 11:56:32,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:32,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:32,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:32,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:32,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:32,721 INFO L87 Difference]: Start difference. First operand 176 states and 205 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:32,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:32,805 INFO L93 Difference]: Finished difference Result 190 states and 221 transitions. [2023-11-26 11:56:32,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:32,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-26 11:56:32,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:32,808 INFO L225 Difference]: With dead ends: 190 [2023-11-26 11:56:32,808 INFO L226 Difference]: Without dead ends: 188 [2023-11-26 11:56:32,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:32,809 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 3 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:32,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 312 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:32,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-26 11:56:32,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 186. [2023-11-26 11:56:32,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 141 states have (on average 1.4184397163120568) internal successors, (200), 173 states have internal predecessors, (200), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:32,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 218 transitions. [2023-11-26 11:56:32,820 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 218 transitions. Word has length 49 [2023-11-26 11:56:32,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:32,821 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 218 transitions. [2023-11-26 11:56:32,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:32,821 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 218 transitions. [2023-11-26 11:56:32,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 11:56:32,822 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:32,823 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:32,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:56:32,823 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:32,826 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:32,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1604545006, now seen corresponding path program 1 times [2023-11-26 11:56:32,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:32,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279430228] [2023-11-26 11:56:32,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:32,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:32,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 11:56:33,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:33,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279430228] [2023-11-26 11:56:33,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279430228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:33,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:33,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:33,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195648466] [2023-11-26 11:56:33,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:33,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:33,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:33,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:33,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:33,019 INFO L87 Difference]: Start difference. First operand 186 states and 218 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:33,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:33,086 INFO L93 Difference]: Finished difference Result 186 states and 218 transitions. [2023-11-26 11:56:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:33,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-26 11:56:33,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:33,088 INFO L225 Difference]: With dead ends: 186 [2023-11-26 11:56:33,088 INFO L226 Difference]: Without dead ends: 185 [2023-11-26 11:56:33,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:33,089 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:33,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 315 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:33,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-26 11:56:33,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 181. [2023-11-26 11:56:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 137 states have (on average 1.416058394160584) internal successors, (194), 168 states have internal predecessors, (194), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:33,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 212 transitions. [2023-11-26 11:56:33,104 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 212 transitions. Word has length 49 [2023-11-26 11:56:33,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:33,104 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 212 transitions. [2023-11-26 11:56:33,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:33,105 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 212 transitions. [2023-11-26 11:56:33,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 11:56:33,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:33,106 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:33,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:56:33,106 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:33,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:33,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1500141520, now seen corresponding path program 1 times [2023-11-26 11:56:33,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:33,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443297469] [2023-11-26 11:56:33,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:33,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:33,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-26 11:56:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:33,487 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:33,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:33,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443297469] [2023-11-26 11:56:33,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443297469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:33,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:33,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:56:33,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125891411] [2023-11-26 11:56:33,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:33,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:56:33,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:33,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:56:33,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:56:33,490 INFO L87 Difference]: Start difference. First operand 181 states and 212 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 11:56:33,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:33,774 INFO L93 Difference]: Finished difference Result 293 states and 348 transitions. [2023-11-26 11:56:33,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:56:33,775 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2023-11-26 11:56:33,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:33,777 INFO L225 Difference]: With dead ends: 293 [2023-11-26 11:56:33,777 INFO L226 Difference]: Without dead ends: 283 [2023-11-26 11:56:33,777 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 11:56:33,778 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 290 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:33,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 415 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:56:33,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2023-11-26 11:56:33,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 183. [2023-11-26 11:56:33,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 139 states have (on average 1.410071942446043) internal successors, (196), 170 states have internal predecessors, (196), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:33,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 214 transitions. [2023-11-26 11:56:33,794 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 214 transitions. Word has length 56 [2023-11-26 11:56:33,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:33,794 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 214 transitions. [2023-11-26 11:56:33,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 11:56:33,795 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 214 transitions. [2023-11-26 11:56:33,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-26 11:56:33,796 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:33,796 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:33,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 11:56:33,797 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:33,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:33,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1107114510, now seen corresponding path program 1 times [2023-11-26 11:56:33,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:33,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793150289] [2023-11-26 11:56:33,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:33,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:33,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:33,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-26 11:56:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:34,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:34,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793150289] [2023-11-26 11:56:34,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793150289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:34,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:34,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:34,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420081999] [2023-11-26 11:56:34,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:34,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:34,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:34,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:34,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:34,018 INFO L87 Difference]: Start difference. First operand 183 states and 214 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 11:56:34,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:34,080 INFO L93 Difference]: Finished difference Result 188 states and 219 transitions. [2023-11-26 11:56:34,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:34,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 56 [2023-11-26 11:56:34,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:34,084 INFO L225 Difference]: With dead ends: 188 [2023-11-26 11:56:34,084 INFO L226 Difference]: Without dead ends: 186 [2023-11-26 11:56:34,084 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 11:56:34,085 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 1 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:34,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 316 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:56:34,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-11-26 11:56:34,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-11-26 11:56:34,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 142 states have (on average 1.4014084507042253) internal successors, (199), 173 states have internal predecessors, (199), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 217 transitions. [2023-11-26 11:56:34,101 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 217 transitions. Word has length 56 [2023-11-26 11:56:34,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:34,102 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 217 transitions. [2023-11-26 11:56:34,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 11:56:34,102 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 217 transitions. [2023-11-26 11:56:34,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 11:56:34,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:34,107 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:34,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 11:56:34,108 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:34,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:34,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1275516758, now seen corresponding path program 1 times [2023-11-26 11:56:34,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:34,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612784992] [2023-11-26 11:56:34,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:34,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:34,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 11:56:34,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:34,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612784992] [2023-11-26 11:56:34,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612784992] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:34,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355823266] [2023-11-26 11:56:34,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:34,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:34,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:34,349 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:34,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 11:56:34,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:34,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:56:34,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 11:56:34,744 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:56:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 11:56:34,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355823266] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:56:34,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:56:34,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-26 11:56:34,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665043635] [2023-11-26 11:56:34,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:56:34,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:56:34,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:34,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:56:34,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:56:34,774 INFO L87 Difference]: Start difference. First operand 186 states and 217 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:34,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:34,877 INFO L93 Difference]: Finished difference Result 347 states and 411 transitions. [2023-11-26 11:56:34,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:34,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2023-11-26 11:56:34,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:34,880 INFO L225 Difference]: With dead ends: 347 [2023-11-26 11:56:34,880 INFO L226 Difference]: Without dead ends: 204 [2023-11-26 11:56:34,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:56:34,882 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 4 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:34,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 471 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:34,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-11-26 11:56:34,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2023-11-26 11:56:34,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 160 states have (on average 1.35625) internal successors, (217), 191 states have internal predecessors, (217), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:34,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 235 transitions. [2023-11-26 11:56:34,900 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 235 transitions. Word has length 57 [2023-11-26 11:56:34,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:34,901 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 235 transitions. [2023-11-26 11:56:34,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:34,901 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 235 transitions. [2023-11-26 11:56:34,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-26 11:56:34,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:34,903 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:34,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:35,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 11:56:35,110 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:35,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:35,111 INFO L85 PathProgramCache]: Analyzing trace with hash 994922301, now seen corresponding path program 1 times [2023-11-26 11:56:35,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:35,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090609642] [2023-11-26 11:56:35,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:35,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:35,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:35,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-26 11:56:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:35,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:35,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090609642] [2023-11-26 11:56:35,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090609642] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:35,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428260556] [2023-11-26 11:56:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:35,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:35,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:35,366 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:35,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 11:56:35,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:35,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:56:35,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 11:56:35,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:56:35,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428260556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:35,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:56:35,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2023-11-26 11:56:35,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541514393] [2023-11-26 11:56:35,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:35,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:56:35,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:35,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:56:35,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:56:35,830 INFO L87 Difference]: Start difference. First operand 204 states and 235 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 11:56:36,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:36,037 INFO L93 Difference]: Finished difference Result 323 states and 381 transitions. [2023-11-26 11:56:36,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:36,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 59 [2023-11-26 11:56:36,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:36,041 INFO L225 Difference]: With dead ends: 323 [2023-11-26 11:56:36,041 INFO L226 Difference]: Without dead ends: 312 [2023-11-26 11:56:36,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:56:36,042 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 120 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:36,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 713 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:56:36,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-26 11:56:36,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 208. [2023-11-26 11:56:36,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 164 states have (on average 1.3597560975609757) internal successors, (223), 195 states have internal predecessors, (223), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:36,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 241 transitions. [2023-11-26 11:56:36,060 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 241 transitions. Word has length 59 [2023-11-26 11:56:36,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:36,060 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 241 transitions. [2023-11-26 11:56:36,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 11:56:36,061 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 241 transitions. [2023-11-26 11:56:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-26 11:56:36,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:36,062 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:36,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:36,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 11:56:36,271 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:36,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:36,271 INFO L85 PathProgramCache]: Analyzing trace with hash 754565691, now seen corresponding path program 1 times [2023-11-26 11:56:36,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:36,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728812662] [2023-11-26 11:56:36,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:36,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:36,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:36,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:36,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:36,577 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:36,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:36,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728812662] [2023-11-26 11:56:36,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728812662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:36,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:36,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:56:36,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571657531] [2023-11-26 11:56:36,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:36,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:36,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:36,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:36,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:36,579 INFO L87 Difference]: Start difference. First operand 208 states and 241 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:36,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:36,639 INFO L93 Difference]: Finished difference Result 317 states and 370 transitions. [2023-11-26 11:56:36,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:36,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2023-11-26 11:56:36,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:36,641 INFO L225 Difference]: With dead ends: 317 [2023-11-26 11:56:36,642 INFO L226 Difference]: Without dead ends: 208 [2023-11-26 11:56:36,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 11:56:36,643 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 107 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:36,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 208 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 11:56:36,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-26 11:56:36,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2023-11-26 11:56:36,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 164 states have (on average 1.353658536585366) internal successors, (222), 195 states have internal predecessors, (222), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:36,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 240 transitions. [2023-11-26 11:56:36,659 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 240 transitions. Word has length 59 [2023-11-26 11:56:36,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:36,659 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 240 transitions. [2023-11-26 11:56:36,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:36,660 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 240 transitions. [2023-11-26 11:56:36,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-26 11:56:36,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:36,661 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:36,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 11:56:36,661 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:36,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:36,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1434624061, now seen corresponding path program 1 times [2023-11-26 11:56:36,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:36,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165194478] [2023-11-26 11:56:36,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:36,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:37,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:37,105 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:37,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:37,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165194478] [2023-11-26 11:56:37,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165194478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:37,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:37,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:56:37,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656416985] [2023-11-26 11:56:37,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:37,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:56:37,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:37,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:56:37,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:56:37,108 INFO L87 Difference]: Start difference. First operand 208 states and 240 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:37,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:37,192 INFO L93 Difference]: Finished difference Result 313 states and 362 transitions. [2023-11-26 11:56:37,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:56:37,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2023-11-26 11:56:37,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:37,194 INFO L225 Difference]: With dead ends: 313 [2023-11-26 11:56:37,194 INFO L226 Difference]: Without dead ends: 211 [2023-11-26 11:56:37,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 11:56:37,196 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 159 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:37,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 308 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:37,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-26 11:56:37,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 210. [2023-11-26 11:56:37,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 166 states have (on average 1.3493975903614457) internal successors, (224), 197 states have internal predecessors, (224), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:37,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 242 transitions. [2023-11-26 11:56:37,214 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 242 transitions. Word has length 59 [2023-11-26 11:56:37,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:37,214 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 242 transitions. [2023-11-26 11:56:37,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:37,214 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 242 transitions. [2023-11-26 11:56:37,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-26 11:56:37,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:37,215 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:37,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 11:56:37,216 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:37,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:37,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1998936997, now seen corresponding path program 1 times [2023-11-26 11:56:37,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:37,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107769728] [2023-11-26 11:56:37,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:37,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:37,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:37,446 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:37,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:37,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107769728] [2023-11-26 11:56:37,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107769728] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:37,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:37,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:56:37,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037609577] [2023-11-26 11:56:37,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:37,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:56:37,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:37,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:56:37,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:37,449 INFO L87 Difference]: Start difference. First operand 210 states and 242 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:37,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:37,525 INFO L93 Difference]: Finished difference Result 219 states and 254 transitions. [2023-11-26 11:56:37,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:56:37,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2023-11-26 11:56:37,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:37,528 INFO L225 Difference]: With dead ends: 219 [2023-11-26 11:56:37,528 INFO L226 Difference]: Without dead ends: 217 [2023-11-26 11:56:37,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:56:37,529 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 4 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:37,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 310 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:37,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-26 11:56:37,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2023-11-26 11:56:37,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 170 states have (on average 1.3529411764705883) internal successors, (230), 201 states have internal predecessors, (230), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:37,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 248 transitions. [2023-11-26 11:56:37,548 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 248 transitions. Word has length 60 [2023-11-26 11:56:37,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:37,548 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 248 transitions. [2023-11-26 11:56:37,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:37,549 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 248 transitions. [2023-11-26 11:56:37,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-26 11:56:37,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:37,554 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:37,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 11:56:37,555 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:37,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:37,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1086090778, now seen corresponding path program 1 times [2023-11-26 11:56:37,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:37,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85116597] [2023-11-26 11:56:37,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:37,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:37,762 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:37,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:37,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85116597] [2023-11-26 11:56:37,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85116597] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:37,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:37,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:56:37,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882978775] [2023-11-26 11:56:37,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:37,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:56:37,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:37,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:56:37,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:56:37,765 INFO L87 Difference]: Start difference. First operand 214 states and 248 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:37,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:37,916 INFO L93 Difference]: Finished difference Result 307 states and 353 transitions. [2023-11-26 11:56:37,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:56:37,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 62 [2023-11-26 11:56:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:37,919 INFO L225 Difference]: With dead ends: 307 [2023-11-26 11:56:37,919 INFO L226 Difference]: Without dead ends: 214 [2023-11-26 11:56:37,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 11:56:37,920 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:37,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 430 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:37,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-11-26 11:56:37,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2023-11-26 11:56:37,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 170 states have (on average 1.3470588235294119) internal successors, (229), 201 states have internal predecessors, (229), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:37,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 247 transitions. [2023-11-26 11:56:37,940 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 247 transitions. Word has length 62 [2023-11-26 11:56:37,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:37,941 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 247 transitions. [2023-11-26 11:56:37,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:37,941 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 247 transitions. [2023-11-26 11:56:37,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-26 11:56:37,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:37,942 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:37,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 11:56:37,943 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:37,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:37,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1752293470, now seen corresponding path program 1 times [2023-11-26 11:56:37,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:37,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600234160] [2023-11-26 11:56:37,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:37,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:38,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:38,182 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:38,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:38,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600234160] [2023-11-26 11:56:38,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600234160] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:38,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142717794] [2023-11-26 11:56:38,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:38,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:38,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:38,185 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:38,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 11:56:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:38,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:56:38,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:38,698 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:38,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:56:38,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142717794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:38,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 11:56:38,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-26 11:56:38,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743329241] [2023-11-26 11:56:38,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:38,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:56:38,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:38,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:56:38,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:56:38,701 INFO L87 Difference]: Start difference. First operand 214 states and 247 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:38,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:38,786 INFO L93 Difference]: Finished difference Result 218 states and 252 transitions. [2023-11-26 11:56:38,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:56:38,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-11-26 11:56:38,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:38,788 INFO L225 Difference]: With dead ends: 218 [2023-11-26 11:56:38,788 INFO L226 Difference]: Without dead ends: 217 [2023-11-26 11:56:38,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 65 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 11:56:38,789 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 9 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:38,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 309 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:38,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-11-26 11:56:38,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 213. [2023-11-26 11:56:38,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 170 states have (on average 1.3411764705882352) internal successors, (228), 200 states have internal predecessors, (228), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:38,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 246 transitions. [2023-11-26 11:56:38,806 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 246 transitions. Word has length 64 [2023-11-26 11:56:38,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:38,806 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 246 transitions. [2023-11-26 11:56:38,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:38,807 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 246 transitions. [2023-11-26 11:56:38,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 11:56:38,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:38,808 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:38,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:39,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:39,016 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:39,016 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:39,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1513477080, now seen corresponding path program 1 times [2023-11-26 11:56:39,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:39,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358243554] [2023-11-26 11:56:39,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:39,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:39,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:39,253 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:39,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:39,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358243554] [2023-11-26 11:56:39,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358243554] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:39,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235853710] [2023-11-26 11:56:39,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:39,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:39,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:39,255 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:39,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-26 11:56:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:39,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 757 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:56:39,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:39,777 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:39,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:56:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:39,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235853710] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:56:39,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:56:39,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-26 11:56:39,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689810346] [2023-11-26 11:56:39,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:56:39,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:56:39,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:39,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:56:39,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:56:39,813 INFO L87 Difference]: Start difference. First operand 213 states and 246 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:39,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:39,964 INFO L93 Difference]: Finished difference Result 238 states and 283 transitions. [2023-11-26 11:56:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:39,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-11-26 11:56:39,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:39,967 INFO L225 Difference]: With dead ends: 238 [2023-11-26 11:56:39,967 INFO L226 Difference]: Without dead ends: 237 [2023-11-26 11:56:39,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:56:39,969 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 19 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:39,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 462 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:39,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-26 11:56:40,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 225. [2023-11-26 11:56:40,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 182 states have (on average 1.3516483516483517) internal successors, (246), 212 states have internal predecessors, (246), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 11:56:40,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 264 transitions. [2023-11-26 11:56:40,018 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 264 transitions. Word has length 65 [2023-11-26 11:56:40,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:40,019 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 264 transitions. [2023-11-26 11:56:40,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 11:56:40,019 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 264 transitions. [2023-11-26 11:56:40,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 11:56:40,020 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:40,020 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:40,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-26 11:56:40,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:40,229 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:40,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:40,229 INFO L85 PathProgramCache]: Analyzing trace with hash 891617130, now seen corresponding path program 1 times [2023-11-26 11:56:40,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:40,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498714951] [2023-11-26 11:56:40,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:40,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:40,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:56:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:40,562 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:40,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:40,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498714951] [2023-11-26 11:56:40,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498714951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:40,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:40,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:56:40,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347197714] [2023-11-26 11:56:40,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:40,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:56:40,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:40,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:56:40,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:56:40,565 INFO L87 Difference]: Start difference. First operand 225 states and 264 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 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 11:56:40,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:40,938 INFO L93 Difference]: Finished difference Result 300 states and 348 transitions. [2023-11-26 11:56:40,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:56:40,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 67 [2023-11-26 11:56:40,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:40,940 INFO L225 Difference]: With dead ends: 300 [2023-11-26 11:56:40,940 INFO L226 Difference]: Without dead ends: 210 [2023-11-26 11:56:40,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:56:40,941 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 84 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:40,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 269 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:56:40,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-26 11:56:40,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 209. [2023-11-26 11:56:40,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 173 states have (on average 1.3179190751445087) internal successors, (228), 197 states have internal predecessors, (228), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:56:40,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 244 transitions. [2023-11-26 11:56:40,960 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 244 transitions. Word has length 67 [2023-11-26 11:56:40,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:40,961 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 244 transitions. [2023-11-26 11:56:40,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (2), 2 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 11:56:40,961 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 244 transitions. [2023-11-26 11:56:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-26 11:56:40,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:40,962 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:40,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-26 11:56:40,963 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:40,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:40,963 INFO L85 PathProgramCache]: Analyzing trace with hash 891619052, now seen corresponding path program 1 times [2023-11-26 11:56:40,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:40,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095200491] [2023-11-26 11:56:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:40,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:41,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:41,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:56:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:41,485 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:41,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:41,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095200491] [2023-11-26 11:56:41,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095200491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:41,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:41,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:56:41,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526021482] [2023-11-26 11:56:41,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:41,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:56:41,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:41,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:56:41,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:56:41,489 INFO L87 Difference]: Start difference. First operand 209 states and 244 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 2 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 11:56:41,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:41,842 INFO L93 Difference]: Finished difference Result 210 states and 245 transitions. [2023-11-26 11:56:41,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:56:41,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 2 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 67 [2023-11-26 11:56:41,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:41,844 INFO L225 Difference]: With dead ends: 210 [2023-11-26 11:56:41,844 INFO L226 Difference]: Without dead ends: 208 [2023-11-26 11:56:41,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:56:41,845 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 34 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:41,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 261 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:56:41,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-26 11:56:41,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 207. [2023-11-26 11:56:41,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 173 states have (on average 1.30635838150289) internal successors, (226), 195 states have internal predecessors, (226), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:56:41,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 242 transitions. [2023-11-26 11:56:41,863 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 242 transitions. Word has length 67 [2023-11-26 11:56:41,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:41,863 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 242 transitions. [2023-11-26 11:56:41,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (2), 2 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 11:56:41,864 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 242 transitions. [2023-11-26 11:56:41,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-26 11:56:41,865 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:41,865 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:41,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-26 11:56:41,865 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:41,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:41,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1870387057, now seen corresponding path program 1 times [2023-11-26 11:56:41,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:41,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233583015] [2023-11-26 11:56:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:41,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:42,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:42,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:42,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-26 11:56:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:42,451 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 11:56:42,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:42,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233583015] [2023-11-26 11:56:42,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233583015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:56:42,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:56:42,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 11:56:42,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287824512] [2023-11-26 11:56:42,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:56:42,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:56:42,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:42,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:56:42,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:56:42,454 INFO L87 Difference]: Start difference. First operand 207 states and 242 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:56:42,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:42,843 INFO L93 Difference]: Finished difference Result 320 states and 378 transitions. [2023-11-26 11:56:42,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 11:56:42,844 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 68 [2023-11-26 11:56:42,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:42,845 INFO L225 Difference]: With dead ends: 320 [2023-11-26 11:56:42,845 INFO L226 Difference]: Without dead ends: 204 [2023-11-26 11:56:42,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-26 11:56:42,846 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 135 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:42,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 545 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 11:56:42,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-11-26 11:56:42,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 203. [2023-11-26 11:56:42,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 169 states have (on average 1.2958579881656804) internal successors, (219), 191 states have internal predecessors, (219), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:56:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 235 transitions. [2023-11-26 11:56:42,864 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 235 transitions. Word has length 68 [2023-11-26 11:56:42,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:42,864 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 235 transitions. [2023-11-26 11:56:42,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 11:56:42,865 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 235 transitions. [2023-11-26 11:56:42,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-26 11:56:42,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:42,866 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:42,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-26 11:56:42,866 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:42,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:42,867 INFO L85 PathProgramCache]: Analyzing trace with hash 220757262, now seen corresponding path program 1 times [2023-11-26 11:56:42,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:42,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138076967] [2023-11-26 11:56:42,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:42,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:43,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:43,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-26 11:56:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:43,124 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-26 11:56:43,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:43,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138076967] [2023-11-26 11:56:43,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138076967] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:43,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904827780] [2023-11-26 11:56:43,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:43,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:43,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:43,127 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:43,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-26 11:56:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:43,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:56:43,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:43,731 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-26 11:56:43,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:56:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-26 11:56:43,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904827780] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:56:43,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:56:43,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-26 11:56:43,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107863777] [2023-11-26 11:56:43,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:56:43,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 11:56:43,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:43,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 11:56:43,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:56:43,838 INFO L87 Difference]: Start difference. First operand 203 states and 235 transitions. Second operand has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 11:56:44,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:44,079 INFO L93 Difference]: Finished difference Result 389 states and 463 transitions. [2023-11-26 11:56:44,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 11:56:44,080 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 76 [2023-11-26 11:56:44,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:44,082 INFO L225 Difference]: With dead ends: 389 [2023-11-26 11:56:44,082 INFO L226 Difference]: Without dead ends: 238 [2023-11-26 11:56:44,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 11:56:44,083 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 6 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:44,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 891 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 11:56:44,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-26 11:56:44,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-11-26 11:56:44,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 205 states have (on average 1.2390243902439024) internal successors, (254), 226 states have internal predecessors, (254), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:56:44,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 270 transitions. [2023-11-26 11:56:44,103 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 270 transitions. Word has length 76 [2023-11-26 11:56:44,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:44,104 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 270 transitions. [2023-11-26 11:56:44,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.785714285714286) internal successors, (81), 14 states have internal predecessors, (81), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 11:56:44,104 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 270 transitions. [2023-11-26 11:56:44,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-26 11:56:44,105 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:44,106 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:44,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-26 11:56:44,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:44,314 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:44,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:44,315 INFO L85 PathProgramCache]: Analyzing trace with hash -642880678, now seen corresponding path program 1 times [2023-11-26 11:56:44,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:44,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996759301] [2023-11-26 11:56:44,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:44,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:44,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:44,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:44,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-26 11:56:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:44,615 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:56:44,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:44,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996759301] [2023-11-26 11:56:44,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996759301] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:44,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369858438] [2023-11-26 11:56:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:44,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:44,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:44,618 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:44,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-26 11:56:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:45,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:56:45,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:56:45,232 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:56:45,266 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-26 11:56:45,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369858438] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:56:45,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:56:45,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-26 11:56:45,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173085270] [2023-11-26 11:56:45,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:56:45,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 11:56:45,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:56:45,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 11:56:45,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:56:45,269 INFO L87 Difference]: Start difference. First operand 238 states and 270 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 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 11:56:45,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:56:45,382 INFO L93 Difference]: Finished difference Result 248 states and 282 transitions. [2023-11-26 11:56:45,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 11:56:45,382 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 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 95 [2023-11-26 11:56:45,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:56:45,384 INFO L225 Difference]: With dead ends: 248 [2023-11-26 11:56:45,385 INFO L226 Difference]: Without dead ends: 247 [2023-11-26 11:56:45,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 11:56:45,386 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 11:56:45,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 529 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 11:56:45,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-11-26 11:56:45,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2023-11-26 11:56:45,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 214 states have (on average 1.2289719626168225) internal successors, (263), 235 states have internal predecessors, (263), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 11:56:45,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 279 transitions. [2023-11-26 11:56:45,406 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 279 transitions. Word has length 95 [2023-11-26 11:56:45,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:56:45,407 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 279 transitions. [2023-11-26 11:56:45,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 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 11:56:45,407 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 279 transitions. [2023-11-26 11:56:45,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-26 11:56:45,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:56:45,409 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:56:45,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-26 11:56:45,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:45,617 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-26 11:56:45,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:56:45,617 INFO L85 PathProgramCache]: Analyzing trace with hash -645207616, now seen corresponding path program 1 times [2023-11-26 11:56:45,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:56:45,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911178712] [2023-11-26 11:56:45,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:45,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:56:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 11:56:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-26 11:56:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,216 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2023-11-26 11:56:54,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:56:54,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911178712] [2023-11-26 11:56:54,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911178712] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 11:56:54,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986190606] [2023-11-26 11:56:54,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:56:54,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 11:56:54,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:56:54,222 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 11:56:54,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7be93aa4-2749-4732-b3d5-428d84dcfb50/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-26 11:56:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:56:54,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 58 conjunts are in the unsatisfiable core [2023-11-26 11:56:54,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:56:54,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-26 11:56:55,021 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-26 11:56:55,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-26 11:56:55,060 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-26 11:56:55,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2023-11-26 11:56:55,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 11:56:55,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 11:56:55,148 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 69 [2023-11-26 11:56:55,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 11:56:55,166 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 45 [2023-11-26 11:56:55,200 INFO L349 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2023-11-26 11:56:55,201 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 64 treesize of output 64 [2023-11-26 11:56:55,230 INFO L349 Elim1Store]: treesize reduction 4, result has 60.0 percent of original size [2023-11-26 11:56:55,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-26 11:56:55,263 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-11-26 11:56:55,264 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 36 [2023-11-26 11:56:55,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-26 11:56:55,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2023-11-26 11:56:55,491 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-26 11:56:55,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2023-11-26 11:56:55,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2023-11-26 11:56:55,587 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-26 11:56:55,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2023-11-26 11:56:55,601 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2023-11-26 11:56:55,677 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-26 11:56:55,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2023-11-26 11:56:55,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2023-11-26 11:56:55,764 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-26 11:56:55,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2023-11-26 11:56:55,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2023-11-26 11:56:55,844 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-26 11:56:55,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2023-11-26 11:56:55,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2023-11-26 11:56:55,933 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-26 11:56:55,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2023-11-26 11:56:55,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2023-11-26 11:56:56,033 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-26 11:56:56,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2023-11-26 11:56:56,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2023-11-26 11:56:56,119 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-26 11:56:56,120 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2023-11-26 11:56:56,131 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2023-11-26 11:56:56,205 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-26 11:56:56,205 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2023-11-26 11:56:56,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2023-11-26 11:56:56,289 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-26 11:56:56,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 47 [2023-11-26 11:56:56,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 20 [2023-11-26 11:56:56,588 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-26 11:56:56,589 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:56:59,791 INFO L349 Elim1Store]: treesize reduction 88, result has 46.7 percent of original size [2023-11-26 11:56:59,791 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 729 treesize of output 310 [2023-11-26 11:56:59,902 INFO L349 Elim1Store]: treesize reduction 56, result has 32.5 percent of original size [2023-11-26 11:56:59,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 291 treesize of output 284 [2023-11-26 11:56:59,967 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2023-11-26 11:56:59,968 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 51345 treesize of output 44575 [2023-11-26 11:57:00,180 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-26 11:57:00,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24755 treesize of output 24243 [2023-11-26 11:57:00,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 353 treesize of output 345 [2023-11-26 11:57:00,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 345 treesize of output 337 [2023-11-26 11:57:00,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 337 treesize of output 317 [2023-11-26 11:57:00,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 317 treesize of output 303 [2023-11-26 11:57:00,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 303 treesize of output 299 [2023-11-26 11:57:00,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 299 treesize of output 285 [2023-11-26 11:57:00,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 285 treesize of output 281 [2023-11-26 11:57:00,501 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-11-26 11:57:00,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 181535 treesize of output 131686 [2023-11-26 11:57:00,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 351 treesize of output 335 [2023-11-26 11:57:00,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 335 treesize of output 323 [2023-11-26 11:57:00,909 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 323 treesize of output 303 [2023-11-26 11:57:00,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 303 treesize of output 287 [2023-11-26 11:57:01,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-11-26 11:57:01,398 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 11:57:01,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 100 [2023-11-26 11:57:01,778 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 26 proven. 29 refuted. 46 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-26 11:57:01,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986190606] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:57:01,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 11:57:01,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 13] total 29 [2023-11-26 11:57:01,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558979518] [2023-11-26 11:57:01,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 11:57:01,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-26 11:57:01,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:57:01,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-26 11:57:01,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=691, Unknown=22, NotChecked=0, Total=812 [2023-11-26 11:57:01,785 INFO L87 Difference]: Start difference. First operand 247 states and 279 transitions. Second operand has 29 states, 29 states have (on average 3.7586206896551726) internal successors, (109), 28 states have internal predecessors, (109), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4)